feat(secret-sync): Add gitlab secret sync

backend/src/lib/api-docs/constants.ts

@@ -2228,6 +2228,11 @@ export const AppConnections = {
     },
     FLYIO: {
       accessToken: "The Access Token used to access fly.io."
+    },
+    GITLAB: {
+      instanceUrl: "The GitLab instance URL to connect with.",
+      accessToken: "The Access Token used to access GitLab.",
+      code: "The OAuth code to use to connect with GitLab."
     }
   }
 };
@@ -2401,6 +2406,16 @@ export const SecretSyncs = {
     },
     FLYIO: {
       appId: "The ID of the Fly.io app to sync secrets to."
+    },
+    GITLAB: {
+      projectId: "The GitLab project to sync secrets to.",
+      projectName: "The GitLab project name to sync secrets to.",
+      groupId: "The GitLab group to sync secrets to.",
+      scope: "The GitLab project scope that secrets should be synced to. (default: individual)",
+      targetEnvironment: "The GitLab environment scope that secrets should be synced to. (default: *)",
+      shouldProtectSecrets: "Whether variables should be protected",
+      shouldMaskSecrets: "Whether variables should be masked in logs",
+      shouldHideSecrets: "Whether variables should be hidden"
     }
   }
 };

backend/src/server/routes/v1/app-connection-routers/app-connection-router.ts

@@ -46,6 +46,7 @@ import {
   GitHubRadarConnectionListItemSchema,
   SanitizedGitHubRadarConnectionSchema
 } from "@app/services/app-connection/github-radar";
+import { GitLabConnectionListItemSchema, SanitizedGitLabConnectionSchema } from "@app/services/app-connection/gitlab";
 import {
   HCVaultConnectionListItemSchema,
   SanitizedHCVaultConnectionSchema
@@ -109,7 +110,8 @@ const SanitizedAppConnectionSchema = z.union([
   ...SanitizedOnePassConnectionSchema.options,
   ...SanitizedHerokuConnectionSchema.options,
   ...SanitizedRenderConnectionSchema.options,
-  ...SanitizedFlyioConnectionSchema.options
+  ...SanitizedFlyioConnectionSchema.options,
+  ...SanitizedGitLabConnectionSchema.options
 ]);
 
 const AppConnectionOptionsSchema = z.discriminatedUnion("app", [
@@ -139,7 +141,8 @@ const AppConnectionOptionsSchema = z.discriminatedUnion("app", [
   OnePassConnectionListItemSchema,
   HerokuConnectionListItemSchema,
   RenderConnectionListItemSchema,
-  FlyioConnectionListItemSchema
+  FlyioConnectionListItemSchema,
+  GitLabConnectionListItemSchema
 ]);
 
 export const registerAppConnectionRouter = async (server: FastifyZodProvider) => {

backend/src/server/routes/v1/app-connection-routers/gitlab-connection-router.ts

@@ -0,0 +1,94 @@
+import z from "zod";
+
+import { readLimit } from "@app/server/config/rateLimiter";
+import { verifyAuth } from "@app/server/plugins/auth/verify-auth";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import {
+  CreateGitLabConnectionSchema,
+  SanitizedGitLabConnectionSchema,
+  TGitLabGroup,
+  TGitLabProject,
+  UpdateGitLabConnectionSchema
+} from "@app/services/app-connection/gitlab";
+import { AuthMode } from "@app/services/auth/auth-type";
+
+import { registerAppConnectionEndpoints } from "./app-connection-endpoints";
+
+export const registerGitLabConnectionRouter = async (server: FastifyZodProvider) => {
+  registerAppConnectionEndpoints({
+    app: AppConnection.GitLab,
+    server,
+    sanitizedResponseSchema: SanitizedGitLabConnectionSchema,
+    createSchema: CreateGitLabConnectionSchema,
+    updateSchema: UpdateGitLabConnectionSchema
+  });
+
+  // The below endpoints are not exposed and for Infisical App use
+  server.route({
+    method: "GET",
+    url: `/:connectionId/projects`,
+    config: {
+      rateLimit: readLimit
+    },
+    schema: {
+      params: z.object({
+        connectionId: z.string().uuid()
+      }),
+      querystring: z.object({
+        group: z.string().optional()
+      }),
+      response: {
+        200: z
+          .object({
+            id: z.string(),
+            name: z.string()
+          })
+          .array()
+      }
+    },
+    onRequest: verifyAuth([AuthMode.JWT]),
+    handler: async (req) => {
+      const { connectionId } = req.params;
+
+      const projects: TGitLabProject[] = await server.services.appConnection.gitlab.listProjects(
+        connectionId,
+        req.permission,
+        req.query.group
+      );
+
+      return projects;
+    }
+  });
+
+  server.route({
+    method: "GET",
+    url: `/:connectionId/groups`,
+    config: {
+      rateLimit: readLimit
+    },
+    schema: {
+      params: z.object({
+        connectionId: z.string().uuid()
+      }),
+      response: {
+        200: z
+          .object({
+            id: z.string(),
+            name: z.string()
+          })
+          .array()
+      }
+    },
+    onRequest: verifyAuth([AuthMode.JWT]),
+    handler: async (req) => {
+      const { connectionId } = req.params;
+
+      const groups: TGitLabGroup[] = await server.services.appConnection.gitlab.listGroups(
+        connectionId,
+        req.permission
+      );
+
+      return groups;
+    }
+  });
+};

backend/src/server/routes/v1/app-connection-routers/index.ts

@@ -15,6 +15,7 @@ import { registerFlyioConnectionRouter } from "./flyio-connection-router";
 import { registerGcpConnectionRouter } from "./gcp-connection-router";
 import { registerGitHubConnectionRouter } from "./github-connection-router";
 import { registerGitHubRadarConnectionRouter } from "./github-radar-connection-router";
+import { registerGitLabConnectionRouter } from "./gitlab-connection-router";
 import { registerHCVaultConnectionRouter } from "./hc-vault-connection-router";
 import { registerHerokuConnectionRouter } from "./heroku-connection-router";
 import { registerHumanitecConnectionRouter } from "./humanitec-connection-router";
@@ -58,5 +59,6 @@ export const APP_CONNECTION_REGISTER_ROUTER_MAP: Record<AppConnection, (server:
     [AppConnection.OnePass]: registerOnePassConnectionRouter,
     [AppConnection.Heroku]: registerHerokuConnectionRouter,
     [AppConnection.Render]: registerRenderConnectionRouter,
-    [AppConnection.Flyio]: registerFlyioConnectionRouter
+    [AppConnection.Flyio]: registerFlyioConnectionRouter,
+    [AppConnection.GitLab]: registerGitLabConnectionRouter
   };

backend/src/server/routes/v1/secret-sync-routers/gitlab-sync-router.ts

@@ -0,0 +1,13 @@
+import { CreateGitLabSyncSchema, GitLabSyncSchema, UpdateGitLabSyncSchema } from "@app/services/secret-sync/gitlab";
+import { SecretSync } from "@app/services/secret-sync/secret-sync-enums";
+
+import { registerSyncSecretsEndpoints } from "./secret-sync-endpoints";
+
+export const registerGitLabSyncRouter = async (server: FastifyZodProvider) =>
+  registerSyncSecretsEndpoints({
+    destination: SecretSync.GitLab,
+    server,
+    responseSchema: GitLabSyncSchema,
+    createSchema: CreateGitLabSyncSchema,
+    updateSchema: UpdateGitLabSyncSchema
+  });

backend/src/server/routes/v1/secret-sync-routers/index.ts

@@ -12,6 +12,7 @@ import { registerDatabricksSyncRouter } from "./databricks-sync-router";
 import { registerFlyioSyncRouter } from "./flyio-sync-router";
 import { registerGcpSyncRouter } from "./gcp-sync-router";
 import { registerGitHubSyncRouter } from "./github-sync-router";
+import { registerGitLabSyncRouter } from "./gitlab-sync-router";
 import { registerHCVaultSyncRouter } from "./hc-vault-sync-router";
 import { registerHerokuSyncRouter } from "./heroku-sync-router";
 import { registerHumanitecSyncRouter } from "./humanitec-sync-router";
@@ -43,5 +44,6 @@ export const SECRET_SYNC_REGISTER_ROUTER_MAP: Record<SecretSync, (server: Fastif
   [SecretSync.OnePass]: registerOnePassSyncRouter,
   [SecretSync.Heroku]: registerHerokuSyncRouter,
   [SecretSync.Render]: registerRenderSyncRouter,
-  [SecretSync.Flyio]: registerFlyioSyncRouter
+  [SecretSync.Flyio]: registerFlyioSyncRouter,
+  [SecretSync.GitLab]: registerGitLabSyncRouter
 };

backend/src/server/routes/v1/secret-sync-routers/secret-sync-router.ts

@@ -26,6 +26,7 @@ import { DatabricksSyncListItemSchema, DatabricksSyncSchema } from "@app/service
 import { FlyioSyncListItemSchema, FlyioSyncSchema } from "@app/services/secret-sync/flyio";
 import { GcpSyncListItemSchema, GcpSyncSchema } from "@app/services/secret-sync/gcp";
 import { GitHubSyncListItemSchema, GitHubSyncSchema } from "@app/services/secret-sync/github";
+import { GitLabSyncListItemSchema, GitLabSyncSchema } from "@app/services/secret-sync/gitlab";
 import { HCVaultSyncListItemSchema, HCVaultSyncSchema } from "@app/services/secret-sync/hc-vault";
 import { HerokuSyncListItemSchema, HerokuSyncSchema } from "@app/services/secret-sync/heroku";
 import { HumanitecSyncListItemSchema, HumanitecSyncSchema } from "@app/services/secret-sync/humanitec";
@@ -55,7 +56,8 @@ const SecretSyncSchema = z.discriminatedUnion("destination", [
   OnePassSyncSchema,
   HerokuSyncSchema,
   RenderSyncSchema,
-  FlyioSyncSchema
+  FlyioSyncSchema,
+  GitLabSyncSchema
 ]);
 
 const SecretSyncOptionsSchema = z.discriminatedUnion("destination", [
@@ -78,7 +80,8 @@ const SecretSyncOptionsSchema = z.discriminatedUnion("destination", [
   OnePassSyncListItemSchema,
   HerokuSyncListItemSchema,
   RenderSyncListItemSchema,
-  FlyioSyncListItemSchema
+  FlyioSyncListItemSchema,
+  GitLabSyncListItemSchema
 ]);
 
 export const registerSecretSyncRouter = async (server: FastifyZodProvider) => {

backend/src/services/app-connection/app-connection-enums.ts

@@ -25,7 +25,8 @@ export enum AppConnection {
   OnePass = "1password",
   Heroku = "heroku",
   Render = "render",
-  Flyio = "flyio"
+  Flyio = "flyio",
+  GitLab = "gitlab"
 }
 
 export enum AWSRegion {

backend/src/services/app-connection/app-connection-fns.ts

@@ -64,6 +64,7 @@ import {
   GitHubRadarConnectionMethod,
   validateGitHubRadarConnectionCredentials
 } from "./github-radar";
+import { getGitLabConnectionListItem, GitLabConnectionMethod, validateGitLabConnectionCredentials } from "./gitlab";
 import {
   getHCVaultConnectionListItem,
   HCVaultConnectionMethod,
@@ -128,7 +129,8 @@ export const listAppConnectionOptions = () => {
     getOnePassConnectionListItem(),
     getHerokuConnectionListItem(),
     getRenderConnectionListItem(),
-    getFlyioConnectionListItem()
+    getFlyioConnectionListItem(),
+    getGitLabConnectionListItem()
   ].sort((a, b) => a.name.localeCompare(b.name));
 };
 
@@ -206,7 +208,8 @@ export const validateAppConnectionCredentials = async (
     [AppConnection.OnePass]: validateOnePassConnectionCredentials as TAppConnectionCredentialsValidator,
     [AppConnection.Heroku]: validateHerokuConnectionCredentials as TAppConnectionCredentialsValidator,
     [AppConnection.Render]: validateRenderConnectionCredentials as TAppConnectionCredentialsValidator,
-    [AppConnection.Flyio]: validateFlyioConnectionCredentials as TAppConnectionCredentialsValidator
+    [AppConnection.Flyio]: validateFlyioConnectionCredentials as TAppConnectionCredentialsValidator,
+    [AppConnection.GitLab]: validateGitLabConnectionCredentials as TAppConnectionCredentialsValidator
   };
 
   return VALIDATE_APP_CONNECTION_CREDENTIALS_MAP[appConnection.app](appConnection);
@@ -223,6 +226,7 @@ export const getAppConnectionMethodName = (method: TAppConnection["method"]) =>
     case GitHubConnectionMethod.OAuth:
     case AzureDevOpsConnectionMethod.OAuth:
     case HerokuConnectionMethod.OAuth:
+    case GitLabConnectionMethod.OAuth:
       return "OAuth";
     case HerokuConnectionMethod.AuthToken:
       return "Auth Token";
@@ -318,7 +322,8 @@ export const TRANSITION_CONNECTION_CREDENTIALS_TO_PLATFORM: Record<
   [AppConnection.OnePass]: platformManagedCredentialsNotSupported,
   [AppConnection.Heroku]: platformManagedCredentialsNotSupported,
   [AppConnection.Render]: platformManagedCredentialsNotSupported,
-  [AppConnection.Flyio]: platformManagedCredentialsNotSupported
+  [AppConnection.Flyio]: platformManagedCredentialsNotSupported,
+  [AppConnection.GitLab]: platformManagedCredentialsNotSupported
 };
 
 export const enterpriseAppCheck = async (

backend/src/services/app-connection/app-connection-maps.ts

@@ -27,7 +27,8 @@ export const APP_CONNECTION_NAME_MAP: Record<AppConnection, string> = {
   [AppConnection.OnePass]: "1Password",
   [AppConnection.Heroku]: "Heroku",
   [AppConnection.Render]: "Render",
-  [AppConnection.Flyio]: "Fly.io"
+  [AppConnection.Flyio]: "Fly.io",
+  [AppConnection.GitLab]: "GitLab"
 };
 
 export const APP_CONNECTION_PLAN_MAP: Record<AppConnection, AppConnectionPlanType> = {
@@ -57,5 +58,6 @@ export const APP_CONNECTION_PLAN_MAP: Record<AppConnection, AppConnectionPlanTyp
   [AppConnection.MySql]: AppConnectionPlanType.Regular,
   [AppConnection.Heroku]: AppConnectionPlanType.Regular,
   [AppConnection.Render]: AppConnectionPlanType.Regular,
-  [AppConnection.Flyio]: AppConnectionPlanType.Regular
+  [AppConnection.Flyio]: AppConnectionPlanType.Regular,
+  [AppConnection.GitLab]: AppConnectionPlanType.Regular
 };

backend/src/services/app-connection/app-connection-service.ts

@@ -56,6 +56,8 @@ import { gcpConnectionService } from "./gcp/gcp-connection-service";
 import { ValidateGitHubConnectionCredentialsSchema } from "./github";
 import { githubConnectionService } from "./github/github-connection-service";
 import { ValidateGitHubRadarConnectionCredentialsSchema } from "./github-radar";
+import { ValidateGitLabConnectionCredentialsSchema } from "./gitlab";
+import { gitlabConnectionService } from "./gitlab/gitlab-connection-service";
 import { ValidateHCVaultConnectionCredentialsSchema } from "./hc-vault";
 import { hcVaultConnectionService } from "./hc-vault/hc-vault-connection-service";
 import { ValidateHerokuConnectionCredentialsSchema } from "./heroku";
@@ -113,7 +115,8 @@ const VALIDATE_APP_CONNECTION_CREDENTIALS_MAP: Record<AppConnection, TValidateAp
   [AppConnection.OnePass]: ValidateOnePassConnectionCredentialsSchema,
   [AppConnection.Heroku]: ValidateHerokuConnectionCredentialsSchema,
   [AppConnection.Render]: ValidateRenderConnectionCredentialsSchema,
-  [AppConnection.Flyio]: ValidateFlyioConnectionCredentialsSchema
+  [AppConnection.Flyio]: ValidateFlyioConnectionCredentialsSchema,
+  [AppConnection.GitLab]: ValidateGitLabConnectionCredentialsSchema
 };
 
 export const appConnectionServiceFactory = ({
@@ -521,6 +524,7 @@ export const appConnectionServiceFactory = ({
     onepass: onePassConnectionService(connectAppConnectionById),
     heroku: herokuConnectionService(connectAppConnectionById, appConnectionDAL, kmsService),
     render: renderConnectionService(connectAppConnectionById),
-    flyio: flyioConnectionService(connectAppConnectionById)
+    flyio: flyioConnectionService(connectAppConnectionById),
+    gitlab: gitlabConnectionService(connectAppConnectionById, appConnectionDAL, kmsService)
   };
 };

backend/src/services/app-connection/app-connection-types.ts

@@ -92,6 +92,12 @@ import {
   TGitHubRadarConnectionInput,
   TValidateGitHubRadarConnectionCredentialsSchema
 } from "./github-radar";
+import {
+  TGitLabConnection,
+  TGitLabConnectionConfig,
+  TGitLabConnectionInput,
+  TValidateGitLabConnectionCredentialsSchema
+} from "./gitlab";
 import {
   THCVaultConnection,
   THCVaultConnectionConfig,
@@ -182,6 +188,7 @@ export type TAppConnection = { id: string } & (
   | THerokuConnection
   | TRenderConnection
   | TFlyioConnection
+  | TGitLabConnection
 );
 
 export type TAppConnectionRaw = NonNullable<Awaited<ReturnType<TAppConnectionDALFactory["findById"]>>>;
@@ -216,6 +223,7 @@ export type TAppConnectionInput = { id: string } & (
   | THerokuConnectionInput
   | TRenderConnectionInput
   | TFlyioConnectionInput
+  | TGitLabConnectionInput
 );
 
 export type TSqlConnectionInput =
@@ -257,7 +265,8 @@ export type TAppConnectionConfig =
   | TOnePassConnectionConfig
   | THerokuConnectionConfig
   | TRenderConnectionConfig
-  | TFlyioConnectionConfig;
+  | TFlyioConnectionConfig
+  | TGitLabConnectionConfig;
 
 export type TValidateAppConnectionCredentialsSchema =
   | TValidateAwsConnectionCredentialsSchema
@@ -286,7 +295,8 @@ export type TValidateAppConnectionCredentialsSchema =
   | TValidateOnePassConnectionCredentialsSchema
   | TValidateHerokuConnectionCredentialsSchema
   | TValidateRenderConnectionCredentialsSchema
-  | TValidateFlyioConnectionCredentialsSchema;
+  | TValidateFlyioConnectionCredentialsSchema
+  | TValidateGitLabConnectionCredentialsSchema;
 
 export type TListAwsConnectionKmsKeys = {
   connectionId: string;

backend/src/services/app-connection/gitlab/gitlab-connection-enums.ts

@@ -0,0 +1,4 @@
+export enum GitLabConnectionMethod {
+  OAuth = "oauth",
+  AccessToken = "access-token"
+}

backend/src/services/app-connection/gitlab/gitlab-connection-fns.ts

@@ -0,0 +1,510 @@
+/* eslint-disable no-await-in-loop */
+import { AxiosError, AxiosResponse } from "axios";
+
+import { getConfig } from "@app/lib/config/env";
+import { request } from "@app/lib/config/request";
+import { BadRequestError, InternalServerError } from "@app/lib/errors";
+import { logger } from "@app/lib/logger";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import { encryptAppConnectionCredentials } from "@app/services/app-connection/app-connection-fns";
+import { IntegrationUrls } from "@app/services/integration-auth/integration-list";
+import { TKmsServiceFactory } from "@app/services/kms/kms-service";
+
+import { TAppConnectionDALFactory } from "../app-connection-dal";
+import { GitLabConnectionMethod } from "./gitlab-connection-enums";
+import { TGitLabConnection, TGitLabConnectionConfig, TGitLabGroup, TGitLabProject } from "./gitlab-connection-types";
+
+interface GitLabOAuthTokenResponse {
+  access_token: string;
+  token_type: string;
+  expires_in: number;
+  refresh_token: string;
+  created_at: number;
+  scope?: string;
+}
+
+export const getGitLabConnectionListItem = () => {
+  const { CLIENT_ID_GITLAB_LOGIN } = getConfig();
+
+  return {
+    name: "GitLab" as const,
+    app: AppConnection.GitLab as const,
+    methods: Object.values(GitLabConnectionMethod) as [
+      GitLabConnectionMethod.AccessToken,
+      GitLabConnectionMethod.OAuth
+    ],
+    oauthClientId: CLIENT_ID_GITLAB_LOGIN
+  };
+};
+
+export const refreshGitLabToken = async (
+  refreshToken: string,
+  appId: string,
+  orgId: string,
+  appConnectionDAL: Pick<TAppConnectionDALFactory, "updateById">,
+  kmsService: Pick<TKmsServiceFactory, "createCipherPairWithDataKey">,
+  instanceUrl?: string
+): Promise<string> => {
+  const { CLIENT_ID_GITLAB_LOGIN, CLIENT_SECRET_GITLAB_LOGIN, SITE_URL } = getConfig();
+  if (!CLIENT_SECRET_GITLAB_LOGIN || !CLIENT_ID_GITLAB_LOGIN || !SITE_URL) {
+    throw new InternalServerError({
+      message: `GitLab environment variables have not been configured`
+    });
+  }
+
+  const payload = new URLSearchParams({
+    grant_type: "refresh_token",
+    refresh_token: refreshToken,
+    client_id: CLIENT_ID_GITLAB_LOGIN,
+    client_secret: CLIENT_SECRET_GITLAB_LOGIN,
+    redirect_uri: `${SITE_URL}/integrations/gitlab/oauth2/callback`
+  });
+
+  try {
+    const { data } = await request.post<GitLabOAuthTokenResponse>(
+      `${instanceUrl ? `${instanceUrl}/oauth/token` : IntegrationUrls.GITLAB_TOKEN_URL}`,
+      payload.toString(),
+      {
+        headers: {
+          "Content-Type": "application/x-www-form-urlencoded",
+          Accept: "application/json"
+        }
+      }
+    );
+
+    const expiresAt = new Date(Date.now() + data.expires_in * 1000 - 60000);
+
+    const encryptedCredentials = await encryptAppConnectionCredentials({
+      credentials: {
+        refreshToken: data.refresh_token,
+        accessToken: data.access_token,
+        expiresAt
+      },
+      orgId,
+      kmsService
+    });
+
+    await appConnectionDAL.updateById(appId, { encryptedCredentials });
+
+    return data.access_token;
+  } catch (error: unknown) {
+    if (error instanceof AxiosError) {
+      throw new BadRequestError({
+        message: `Failed to refresh GitLab token: ${error.message}`
+      });
+    }
+    throw new BadRequestError({
+      message: "Unable to refresh GitLab token"
+    });
+  }
+};
+
+export const exchangeGitLabOAuthCode = async (
+  code: string,
+  instanceUrl?: string
+): Promise<GitLabOAuthTokenResponse> => {
+  const { CLIENT_ID_GITLAB_LOGIN, CLIENT_SECRET_GITLAB_LOGIN, SITE_URL } = getConfig();
+  if (!CLIENT_SECRET_GITLAB_LOGIN || !CLIENT_ID_GITLAB_LOGIN || !SITE_URL) {
+    throw new InternalServerError({
+      message: `GitLab environment variables have not been configured`
+    });
+  }
+
+  try {
+    const payload = new URLSearchParams({
+      grant_type: "authorization_code",
+      code,
+      client_id: CLIENT_ID_GITLAB_LOGIN,
+      client_secret: CLIENT_SECRET_GITLAB_LOGIN,
+      redirect_uri: `${SITE_URL}/integrations/gitlab/oauth2/callback`
+    });
+
+    const response = await request.post<GitLabOAuthTokenResponse>(
+      instanceUrl ? `${instanceUrl}/oauth/token` : IntegrationUrls.GITLAB_TOKEN_URL,
+      payload.toString(),
+      {
+        headers: {
+          "Content-Type": "application/x-www-form-urlencoded",
+          Accept: "application/json"
+        }
+      }
+    );
+
+    if (!response.data) {
+      throw new InternalServerError({
+        message: "Failed to exchange OAuth code: Empty response"
+      });
+    }
+
+    return response.data;
+  } catch (error: unknown) {
+    if (error instanceof AxiosError) {
+      throw new BadRequestError({
+        message: `Failed to exchange OAuth code: ${error.message}`
+      });
+    }
+    throw new BadRequestError({
+      message: "Unable to exchange OAuth code"
+    });
+  }
+};
+
+export const validateGitLabConnectionCredentials = async (config: TGitLabConnectionConfig) => {
+  const { credentials: inputCredentials, method } = config;
+
+  let accessToken: string;
+  let oauthData: GitLabOAuthTokenResponse | null = null;
+
+  if (method === GitLabConnectionMethod.OAuth && "code" in inputCredentials) {
+    oauthData = await exchangeGitLabOAuthCode(inputCredentials.code, inputCredentials.instanceUrl);
+    accessToken = oauthData.access_token;
+  } else if (method === GitLabConnectionMethod.AccessToken && "accessToken" in inputCredentials) {
+    accessToken = inputCredentials.accessToken;
+  } else {
+    throw new BadRequestError({
+      message: "Invalid credentials for the selected connection method"
+    });
+  }
+
+  let response: AxiosResponse<TGitLabProject[]> | null = null;
+
+  try {
+    response = await request.get<TGitLabProject[]>(
+      `${inputCredentials.instanceUrl ? `${inputCredentials.instanceUrl}/api` : IntegrationUrls.GITLAB_API_URL}/v4/groups`,
+      {
+        headers: {
+          Authorization: `Bearer ${accessToken}`,
+          Accept: "application/json"
+        }
+      }
+    );
+  } catch (error: unknown) {
+    if (error instanceof AxiosError) {
+      throw new BadRequestError({
+        message: `Failed to validate credentials: ${error.message}`
+      });
+    }
+    throw new BadRequestError({
+      message: "Unable to validate connection: verify credentials"
+    });
+  }
+
+  if (!response?.data) {
+    throw new InternalServerError({
+      message: "Failed to validate credentials: Response was empty"
+    });
+  }
+
+  if (method === GitLabConnectionMethod.OAuth && oauthData) {
+    return {
+      accessToken,
+      refreshToken: oauthData.refresh_token,
+      expiresAt: new Date(Date.now() + oauthData.expires_in * 1000 - 60000),
+      tokenType: oauthData.token_type,
+      createdAt: new Date(oauthData.created_at * 1000)
+    };
+  }
+
+  return inputCredentials;
+};
+
+export const listGitLabProjects = async ({
+  appConnection,
+  appConnectionDAL,
+  kmsService,
+  teamId
+}: {
+  appConnection: TGitLabConnection;
+  appConnectionDAL: Pick<TAppConnectionDALFactory, "updateById">;
+  kmsService: Pick<TKmsServiceFactory, "createCipherPairWithDataKey">;
+  teamId?: string;
+}): Promise<TGitLabProject[]> => {
+  let { accessToken } = appConnection.credentials;
+
+  if (
+    appConnection.method === GitLabConnectionMethod.OAuth &&
+    appConnection.credentials.refreshToken &&
+    appConnection.credentials.expiresAt < new Date()
+  ) {
+    accessToken = await refreshGitLabToken(
+      appConnection.credentials.refreshToken,
+      appConnection.id,
+      appConnection.orgId,
+      appConnectionDAL,
+      kmsService,
+      appConnection.credentials.instanceUrl
+    );
+  }
+
+  const gitLabApiUrl = appConnection.credentials.instanceUrl
+    ? `${appConnection.credentials.instanceUrl}/api/v4`
+    : `${IntegrationUrls.GITLAB_API_URL}/v4`;
+
+  const projects: TGitLabProject[] = [];
+  let page = 1;
+  const perPage = 100;
+  let hasMorePages = true;
+
+  try {
+    if (teamId) {
+      while (hasMorePages) {
+        const { data } = await request.get<TGitLabProject[]>(`${gitLabApiUrl}/groups/${teamId}/projects`, {
+          headers: {
+            Authorization: `Bearer ${accessToken}`,
+            Accept: "application/json"
+          },
+          params: {
+            page: page.toString(),
+            per_page: perPage.toString(),
+            order_by: "updated_at",
+            sort: "desc",
+            include_subgroups: "true"
+          }
+        });
+
+        if (!data) {
+          throw new InternalServerError({
+            message: "Failed to get group projects: Response was empty"
+          });
+        }
+
+        data.forEach((project) => {
+          projects.push({
+            name: project.name,
+            id: project.id.toString()
+          });
+        });
+
+        hasMorePages = data.length === perPage;
+        page += 1;
+      }
+    } else {
+      const { data: userData } = await request.get<{ id: string }>(`${gitLabApiUrl}/user`, {
+        headers: {
+          Authorization: `Bearer ${accessToken}`,
+          Accept: "application/json"
+        }
+      });
+
+      if (!userData?.id) {
+        throw new InternalServerError({
+          message: "Failed to get current user information"
+        });
+      }
+
+      while (hasMorePages) {
+        const { data } = await request.get<TGitLabProject[]>(`${gitLabApiUrl}/users/${userData.id}/projects`, {
+          headers: {
+            Authorization: `Bearer ${accessToken}`,
+            Accept: "application/json"
+          },
+          params: {
+            page: page.toString(),
+            per_page: perPage.toString(),
+            order_by: "updated_at",
+            sort: "desc"
+          }
+        });
+
+        if (!data) {
+          throw new InternalServerError({
+            message: "Failed to get user projects: Response was empty"
+          });
+        }
+
+        data.forEach((project) => {
+          projects.push({
+            name: project.name,
+            id: project.id.toString()
+          });
+        });
+
+        hasMorePages = data.length === perPage;
+        page += 1;
+      }
+
+      if (projects.length === 0 && appConnection.method === GitLabConnectionMethod.AccessToken) {
+        try {
+          const { data: tokenAssociations } = await request.get<{
+            projects?: TGitLabProject[];
+            groups?: Array<{ projects?: TGitLabProject[] }>;
+          }>(`${gitLabApiUrl}/personal_access_tokens/self/associations`, {
+            headers: {
+              Authorization: `Bearer ${accessToken}`,
+              Accept: "application/json"
+            },
+            params: {
+              min_access_level: "50"
+            }
+          });
+
+          if (tokenAssociations?.projects) {
+            tokenAssociations.projects.forEach((project) => {
+              projects.push({
+                name: project.name,
+                id: project.id.toString()
+              });
+            });
+          }
+
+          if (tokenAssociations?.groups) {
+            tokenAssociations.groups.forEach((group) => {
+              if (group.projects) {
+                group.projects.forEach((project) => {
+                  const existingProject = projects.find((p) => p.id === project.id.toString());
+                  if (!existingProject) {
+                    projects.push({
+                      name: project.name,
+                      id: project.id.toString()
+                    });
+                  }
+                });
+              }
+            });
+          }
+        } catch (error) {
+          logger.warn(error, "Failed to fetch projects via personal access token associations:");
+        }
+      }
+    }
+
+    return projects;
+  } catch (error: unknown) {
+    if (error instanceof AxiosError) {
+      const status = error.response?.status;
+      const { message } = error;
+
+      if (status === 401) {
+        throw new BadRequestError({
+          message: `GitLab authentication failed: ${message}`
+        });
+      } else if (status === 403) {
+        throw new BadRequestError({
+          message: `GitLab access forbidden: ${message}`
+        });
+      } else if (status === 404) {
+        throw new BadRequestError({
+          message: teamId ? `GitLab group not found or access denied: ${message}` : `GitLab user not found: ${message}`
+        });
+      } else {
+        throw new BadRequestError({
+          message: `Failed to fetch GitLab projects: ${message}`
+        });
+      }
+    }
+
+    if (error instanceof InternalServerError) {
+      throw error;
+    }
+
+    throw new InternalServerError({
+      message: "Unable to fetch GitLab projects"
+    });
+  }
+};
+
+export const listGitLabGroups = async ({
+  appConnection,
+  appConnectionDAL,
+  kmsService,
+  includeSubgroups = true,
+  owned = false
+}: {
+  appConnection: TGitLabConnection;
+  appConnectionDAL: Pick<TAppConnectionDALFactory, "updateById">;
+  kmsService: Pick<TKmsServiceFactory, "createCipherPairWithDataKey">;
+  includeSubgroups?: boolean;
+  owned?: boolean;
+}): Promise<TGitLabGroup[]> => {
+  let { accessToken } = appConnection.credentials;
+
+  if (
+    appConnection.method === GitLabConnectionMethod.OAuth &&
+    appConnection.credentials.refreshToken &&
+    appConnection.credentials.expiresAt < new Date()
+  ) {
+    accessToken = await refreshGitLabToken(
+      appConnection.credentials.refreshToken,
+      appConnection.id,
+      appConnection.orgId,
+      appConnectionDAL,
+      kmsService,
+      appConnection.credentials.instanceUrl
+    );
+  }
+
+  const gitLabApiUrl = appConnection.credentials.instanceUrl
+    ? `${appConnection.credentials.instanceUrl}/api/v4`
+    : `${IntegrationUrls.GITLAB_API_URL}/v4`;
+
+  const groups: TGitLabGroup[] = [];
+  let page = 1;
+  const perPage = 100;
+  let hasMorePages = true;
+
+  try {
+    while (hasMorePages) {
+      const { data } = await request.get<TGitLabGroup[]>(`${gitLabApiUrl}/groups`, {
+        headers: {
+          Authorization: `Bearer ${accessToken}`,
+          Accept: "application/json"
+        },
+        params: {
+          page: page.toString(),
+          per_page: perPage.toString(),
+          order_by: "name",
+          sort: "asc",
+          all_available: (!owned).toString(),
+          owned: owned.toString(),
+          min_access_level: "10",
+          ...(includeSubgroups && { with_custom_attributes: "true" })
+        }
+      });
+
+      if (!data) {
+        throw new InternalServerError({
+          message: "Failed to get groups: Response was empty"
+        });
+      }
+
+      data.forEach((group) => {
+        groups.push({
+          id: group.id.toString(),
+          name: group.name
+        });
+      });
+
+      hasMorePages = data.length === perPage;
+      page += 1;
+    }
+
+    return groups;
+  } catch (error: unknown) {
+    if (error instanceof AxiosError) {
+      const status = error.response?.status;
+      const { message } = error;
+
+      if (status === 401) {
+        throw new BadRequestError({
+          message: `GitLab authentication failed: ${message}`
+        });
+      } else if (status === 403) {
+        throw new BadRequestError({
+          message: `GitLab access forbidden: ${message}`
+        });
+      } else {
+        throw new BadRequestError({
+          message: `Failed to fetch GitLab groups: ${message}`
+        });
+      }
+    }
+
+    if (error instanceof InternalServerError) {
+      throw error;
+    }
+
+    throw new InternalServerError({
+      message: "Unable to fetch GitLab groups"
+    });
+  }
+};

backend/src/services/app-connection/gitlab/gitlab-connection-schemas.ts

@@ -0,0 +1,139 @@
+import z from "zod";
+
+import { AppConnections } from "@app/lib/api-docs";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import {
+  BaseAppConnectionSchema,
+  GenericCreateAppConnectionFieldsSchema,
+  GenericUpdateAppConnectionFieldsSchema
+} from "@app/services/app-connection/app-connection-schemas";
+
+import { GitLabConnectionMethod } from "./gitlab-connection-enums";
+
+// Fixed: Use consistent accessToken naming throughout
+export const GitLabConnectionAccessTokenCredentialsSchema = z.object({
+  accessToken: z
+    .string()
+    .trim()
+    .min(1, "Access Token required")
+    .describe(AppConnections.CREDENTIALS.GITLAB.accessToken),
+  instanceUrl: z
+    .string()
+    .trim()
+    .url("Invalid Instance URL")
+    .optional()
+    .describe(AppConnections.CREDENTIALS.GITLAB.instanceUrl)
+});
+
+export const GitLabConnectionOAuthCredentialsSchema = z.object({
+  code: z.string().trim().min(1, "OAuth code required").describe(AppConnections.CREDENTIALS.GITLAB.code),
+  instanceUrl: z
+    .string()
+    .trim()
+    .url("Invalid Instance URL")
+    .optional()
+    .describe(AppConnections.CREDENTIALS.GITLAB.instanceUrl)
+});
+
+// Fixed: Updated schema to match GitLab's actual OAuth response structure
+export const GitLabConnectionOAuthOutputCredentialsSchema = z.object({
+  accessToken: z.string().trim(),
+  refreshToken: z.string().trim(),
+  expiresAt: z.date(),
+  tokenType: z.string().optional().default("bearer"),
+  createdAt: z.string().optional(),
+  instanceUrl: z
+    .string()
+    .trim()
+    .url("Invalid Instance URL")
+    .optional()
+    .describe(AppConnections.CREDENTIALS.GITLAB.instanceUrl)
+});
+
+// Schema for refresh token input during initial setup
+export const GitLabConnectionRefreshTokenCredentialsSchema = z.object({
+  refreshToken: z.string().trim().min(1, "Refresh token required"),
+  instanceUrl: z
+    .string()
+    .trim()
+    .url("Invalid Instance URL")
+    .optional()
+    .describe(AppConnections.CREDENTIALS.GITLAB.instanceUrl)
+});
+
+const BaseGitLabConnectionSchema = BaseAppConnectionSchema.extend({
+  app: z.literal(AppConnection.GitLab)
+});
+
+export const GitLabConnectionSchema = z.intersection(
+  BaseGitLabConnectionSchema,
+  z.discriminatedUnion("method", [
+    z.object({
+      method: z.literal(GitLabConnectionMethod.AccessToken),
+      credentials: GitLabConnectionAccessTokenCredentialsSchema
+    }),
+    z.object({
+      method: z.literal(GitLabConnectionMethod.OAuth),
+      credentials: GitLabConnectionOAuthOutputCredentialsSchema
+    })
+  ])
+);
+
+export const SanitizedGitLabConnectionSchema = z.discriminatedUnion("method", [
+  BaseGitLabConnectionSchema.extend({
+    method: z.literal(GitLabConnectionMethod.AccessToken),
+    credentials: GitLabConnectionAccessTokenCredentialsSchema.pick({
+      instanceUrl: true
+    }) // Don't expose sensitive data
+  }),
+  BaseGitLabConnectionSchema.extend({
+    method: z.literal(GitLabConnectionMethod.OAuth),
+    credentials: GitLabConnectionOAuthOutputCredentialsSchema.pick({
+      instanceUrl: true
+    })
+  })
+]);
+
+export const ValidateGitLabConnectionCredentialsSchema = z.discriminatedUnion("method", [
+  z.object({
+    method: z.literal(GitLabConnectionMethod.AccessToken).describe(AppConnections.CREATE(AppConnection.GitLab).method),
+    credentials: GitLabConnectionAccessTokenCredentialsSchema.describe(
+      AppConnections.CREATE(AppConnection.GitLab).credentials
+    )
+  }),
+  z.object({
+    method: z.literal(GitLabConnectionMethod.OAuth).describe(AppConnections.CREATE(AppConnection.GitLab).method),
+    credentials: z
+      .union([
+        GitLabConnectionOAuthCredentialsSchema,
+        GitLabConnectionRefreshTokenCredentialsSchema,
+        GitLabConnectionOAuthOutputCredentialsSchema
+      ])
+      .describe(AppConnections.CREATE(AppConnection.GitLab).credentials)
+  })
+]);
+
+export const CreateGitLabConnectionSchema = ValidateGitLabConnectionCredentialsSchema.and(
+  GenericCreateAppConnectionFieldsSchema(AppConnection.GitLab)
+);
+
+export const UpdateGitLabConnectionSchema = z
+  .object({
+    credentials: z
+      .union([
+        GitLabConnectionAccessTokenCredentialsSchema,
+        GitLabConnectionOAuthOutputCredentialsSchema,
+        GitLabConnectionRefreshTokenCredentialsSchema,
+        GitLabConnectionOAuthCredentialsSchema
+      ])
+      .optional()
+      .describe(AppConnections.UPDATE(AppConnection.GitLab).credentials)
+  })
+  .and(GenericUpdateAppConnectionFieldsSchema(AppConnection.GitLab));
+
+export const GitLabConnectionListItemSchema = z.object({
+  name: z.literal("GitLab"),
+  app: z.literal(AppConnection.GitLab),
+  methods: z.nativeEnum(GitLabConnectionMethod).array(),
+  oauthClientId: z.string().optional()
+});

backend/src/services/app-connection/gitlab/gitlab-connection-service.ts

@@ -0,0 +1,47 @@
+import { logger } from "@app/lib/logger";
+import { OrgServiceActor } from "@app/lib/types";
+import { TKmsServiceFactory } from "@app/services/kms/kms-service";
+
+import { TAppConnectionDALFactory } from "../app-connection-dal";
+import { AppConnection } from "../app-connection-enums";
+import { listGitLabGroups, listGitLabProjects } from "./gitlab-connection-fns";
+import { TGitLabConnection } from "./gitlab-connection-types";
+
+type TGetAppConnectionFunc = (
+  app: AppConnection,
+  connectionId: string,
+  actor: OrgServiceActor
+) => Promise<TGitLabConnection>;
+
+export const gitlabConnectionService = (
+  getAppConnection: TGetAppConnectionFunc,
+  appConnectionDAL: Pick<TAppConnectionDALFactory, "updateById">,
+  kmsService: Pick<TKmsServiceFactory, "createCipherPairWithDataKey">
+) => {
+  const listProjects = async (connectionId: string, actor: OrgServiceActor, teamId?: string) => {
+    try {
+      const appConnection = await getAppConnection(AppConnection.GitLab, connectionId, actor);
+      const projects = await listGitLabProjects({ appConnection, appConnectionDAL, kmsService, teamId });
+      return projects;
+    } catch (error) {
+      logger.error(error, `Failed to establish connection with GitLab for app ${connectionId}`);
+      return [];
+    }
+  };
+
+  const listGroups = async (connectionId: string, actor: OrgServiceActor) => {
+    try {
+      const appConnection = await getAppConnection(AppConnection.GitLab, connectionId, actor);
+      const groups = await listGitLabGroups({ appConnection, appConnectionDAL, kmsService });
+      return groups;
+    } catch (error) {
+      logger.error(error, `Failed to establish connection with GitLab for app ${connectionId}`);
+      return [];
+    }
+  };
+
+  return {
+    listProjects,
+    listGroups
+  };
+};

backend/src/services/app-connection/gitlab/gitlab-connection-types.ts

@@ -0,0 +1,56 @@
+import z from "zod";
+
+import { DiscriminativePick } from "@app/lib/types";
+
+import { AppConnection } from "../app-connection-enums";
+import {
+  CreateGitLabConnectionSchema,
+  GitLabConnectionSchema,
+  ValidateGitLabConnectionCredentialsSchema
+} from "./gitlab-connection-schemas";
+
+export type TGitLabConnection = z.infer<typeof GitLabConnectionSchema>;
+
+export type TGitLabConnectionInput = z.infer<typeof CreateGitLabConnectionSchema> & {
+  app: AppConnection.GitLab;
+};
+
+export type TValidateGitLabConnectionCredentialsSchema = typeof ValidateGitLabConnectionCredentialsSchema;
+
+export type TGitLabConnectionConfig = DiscriminativePick<TGitLabConnectionInput, "method" | "app" | "credentials"> & {
+  orgId: string;
+};
+
+export type TGitLabProject = {
+  name: string;
+  id: string;
+};
+
+export type TGitLabAccessTokenCredentials = {
+  accessToken: string;
+  instanceUrl: string;
+};
+
+export type TGitLabOAuthCredentials = {
+  accessToken: string;
+  refreshToken: string;
+  expiresAt: Date;
+  tokenType?: string;
+  createdAt?: Date;
+  instanceUrl: string;
+};
+
+export type TGitLabOAuthCodeCredentials = {
+  code: string;
+  instanceUrl: string;
+};
+
+export type TGitLabRefreshTokenCredentials = {
+  refreshToken: string;
+  instanceUrl: string;
+};
+
+export interface TGitLabGroup {
+  id: string;
+  name: string;
+}

backend/src/services/app-connection/gitlab/index.ts

@@ -0,0 +1,4 @@
+export * from "./gitlab-connection-enums";
+export * from "./gitlab-connection-fns";
+export * from "./gitlab-connection-schemas";
+export * from "./gitlab-connection-types";

backend/src/services/secret-sync/gitlab/gitlab-sync-constants.ts

@@ -0,0 +1,10 @@
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import { SecretSync } from "@app/services/secret-sync/secret-sync-enums";
+import { TSecretSyncListItem } from "@app/services/secret-sync/secret-sync-types";
+
+export const GITLAB_SYNC_LIST_OPTION: TSecretSyncListItem = {
+  name: "GitLab",
+  destination: SecretSync.GitLab,
+  connection: AppConnection.GitLab,
+  canImportSecrets: false
+};

backend/src/services/secret-sync/gitlab/gitlab-sync-enums.ts

@@ -0,0 +1,4 @@
+export enum GitLabSyncScope {
+  Individual = "individual",
+  Group = "group"
+}

backend/src/services/secret-sync/gitlab/gitlab-sync-fns.ts

@@ -0,0 +1,369 @@
+/* eslint-disable no-await-in-loop */
+import { request } from "@app/lib/config/request";
+import { TAppConnectionDALFactory } from "@app/services/app-connection/app-connection-dal";
+import { GitLabConnectionMethod, refreshGitLabToken, TGitLabConnection } from "@app/services/app-connection/gitlab";
+import { IntegrationUrls } from "@app/services/integration-auth/integration-list";
+import { TKmsServiceFactory } from "@app/services/kms/kms-service";
+import { TGitLabSyncWithCredentials, TGitLabVariable } from "@app/services/secret-sync/gitlab/gitlab-sync-types";
+import { SecretSyncError } from "@app/services/secret-sync/secret-sync-errors";
+import { matchesSchema } from "@app/services/secret-sync/secret-sync-fns";
+import { TSecretMap } from "@app/services/secret-sync/secret-sync-types";
+
+import { SECRET_SYNC_NAME_MAP } from "../secret-sync-maps";
+
+interface TGitLabVariablePayload {
+  key?: string;
+  value: string;
+  variable_type?: "env_var" | "file";
+  environment_scope?: string;
+  protected?: boolean;
+  masked?: boolean;
+  masked_and_hidden?: boolean;
+  description?: string;
+}
+
+interface TGitLabVariableCreate extends TGitLabVariablePayload {
+  key: string;
+}
+
+interface TGitLabVariableUpdate extends Omit<TGitLabVariablePayload, "key"> {}
+
+type TGitLabSyncFactoryDeps = {
+  appConnectionDAL: Pick<TAppConnectionDALFactory, "updateById">;
+  kmsService: Pick<TKmsServiceFactory, "createCipherPairWithDataKey">;
+};
+
+const getValidAccessToken = async (
+  connection: TGitLabConnection,
+  appConnectionDAL: Pick<TAppConnectionDALFactory, "updateById">,
+  kmsService: Pick<TKmsServiceFactory, "createCipherPairWithDataKey">
+): Promise<string> => {
+  if (
+    connection.method === GitLabConnectionMethod.OAuth &&
+    connection.credentials.refreshToken &&
+    connection.credentials.expiresAt < new Date()
+  ) {
+    const accessToken = await refreshGitLabToken(
+      connection.credentials.refreshToken,
+      connection.id,
+      connection.orgId,
+      appConnectionDAL,
+      kmsService
+    );
+    return accessToken;
+  }
+  return connection.credentials.accessToken;
+};
+
+const getGitLabApiUrl = (connection: TGitLabConnection): string => {
+  const baseUrl = connection.credentials.instanceUrl || IntegrationUrls.GITLAB_API_URL;
+  return baseUrl.includes("/api") ? baseUrl : `${baseUrl}/api`;
+};
+
+const buildVariablesEndpoint = (apiUrl: string, projectId: string): string => {
+  return `${apiUrl}/v4/projects/${encodeURIComponent(projectId)}/variables`;
+};
+
+const getGitLabVariables = async ({
+  accessToken,
+  connection,
+  projectId,
+  targetEnvironment
+}: {
+  accessToken: string;
+  connection: TGitLabConnection;
+  projectId: string;
+  targetEnvironment?: string;
+}): Promise<TGitLabVariable[]> => {
+  try {
+    const apiUrl = getGitLabApiUrl(connection);
+    const baseEndpoint = buildVariablesEndpoint(apiUrl, projectId);
+
+    const headers = {
+      Authorization: `Bearer ${accessToken}`,
+      "Accept-Encoding": "application/json",
+      "Content-Type": "application/json"
+    };
+
+    let allVariables: TGitLabVariable[] = [];
+    let url: string | null = `${baseEndpoint}?per_page=100`;
+
+    if (targetEnvironment) {
+      url += `&filter[environment_scope]=${encodeURIComponent(targetEnvironment)}`;
+    }
+
+    while (url) {
+      const response = await request.get<TGitLabVariable[]>(url, { headers });
+      allVariables = [...allVariables, ...(response.data || [])];
+
+      const linkHeader = response.headers.link as string;
+      const nextLink = linkHeader?.split(",").find((part: string) => part.includes('rel="next"'));
+
+      if (nextLink) {
+        url = nextLink.trim().split(";")[0].slice(1, -1);
+      } else {
+        url = null;
+      }
+    }
+
+    if (targetEnvironment) {
+      return allVariables.filter((variable) => variable.environment_scope === targetEnvironment);
+    }
+
+    return allVariables;
+  } catch (error) {
+    throw new SecretSyncError({
+      error,
+      secretKey: "list_variables"
+    });
+  }
+};
+
+const createGitLabVariable = async ({
+  accessToken,
+  connection,
+  projectId,
+  variable
+}: {
+  accessToken: string;
+  connection: TGitLabConnection;
+  projectId: string;
+  variable: TGitLabVariableCreate;
+}): Promise<void> => {
+  try {
+    const apiUrl = getGitLabApiUrl(connection);
+    const endpoint = buildVariablesEndpoint(apiUrl, projectId);
+
+    const payload = {
+      key: variable.key,
+      value: variable.value,
+      variable_type: variable.variable_type || "env_var",
+      environment_scope: variable.environment_scope || "*",
+      protected: variable.protected || false,
+      masked: variable.masked || false,
+      masked_and_hidden: variable.masked_and_hidden || false,
+      raw: false,
+      ...(variable.description && { description: variable.description })
+    };
+
+    await request.post(endpoint, payload, {
+      headers: {
+        Authorization: `Bearer ${accessToken}`,
+        "Accept-Encoding": "application/json",
+        "Content-Type": "application/json"
+      }
+    });
+  } catch (error) {
+    throw new SecretSyncError({
+      error,
+      secretKey: variable.key
+    });
+  }
+};
+
+const updateGitLabVariable = async ({
+  accessToken,
+  connection,
+  projectId,
+  key,
+  variable,
+  targetEnvironment
+}: {
+  accessToken: string;
+  connection: TGitLabConnection;
+  projectId: string;
+  key: string;
+  variable: TGitLabVariableUpdate;
+  targetEnvironment?: string;
+}): Promise<void> => {
+  try {
+    const apiUrl = getGitLabApiUrl(connection);
+    const baseEndpoint = buildVariablesEndpoint(apiUrl, projectId);
+    let url = `${baseEndpoint}/${encodeURIComponent(key)}`;
+
+    if (targetEnvironment) {
+      url += `?filter[environment_scope]=${encodeURIComponent(targetEnvironment)}`;
+    }
+
+    const payload = {
+      value: variable.value,
+      ...(variable.variable_type && { variable_type: variable.variable_type }),
+      ...(variable.environment_scope && { environment_scope: variable.environment_scope }),
+      ...(variable.protected !== undefined && { protected: variable.protected }),
+      ...(variable.masked !== undefined && { masked: variable.masked }),
+      ...(variable.masked_and_hidden !== undefined && { masked_and_hidden: variable.masked_and_hidden }),
+      ...(variable.description !== undefined && { description: variable.description || "" })
+    };
+
+    await request.put(url, payload, {
+      headers: {
+        Authorization: `Bearer ${accessToken}`,
+        "Accept-Encoding": "application/json",
+        "Content-Type": "application/json"
+      }
+    });
+  } catch (error) {
+    throw new SecretSyncError({
+      error,
+      secretKey: key
+    });
+  }
+};
+
+const deleteGitLabVariable = async ({
+  accessToken,
+  connection,
+  projectId,
+  key,
+  targetEnvironment
+}: {
+  accessToken: string;
+  connection: TGitLabConnection;
+  projectId: string;
+  key: string;
+  targetEnvironment?: string;
+}): Promise<void> => {
+  try {
+    const apiUrl = getGitLabApiUrl(connection);
+    const baseEndpoint = buildVariablesEndpoint(apiUrl, projectId);
+    let url = `${baseEndpoint}/${encodeURIComponent(key)}`;
+
+    if (targetEnvironment) {
+      url += `?filter[environment_scope]=${encodeURIComponent(targetEnvironment)}`;
+    }
+
+    await request.delete(url, {
+      headers: {
+        Authorization: `Bearer ${accessToken}`,
+        "Accept-Encoding": "application/json",
+        "Content-Type": "application/json"
+      }
+    });
+  } catch (error: unknown) {
+    throw new SecretSyncError({
+      error
+    });
+  }
+};
+
+export const GitLabSyncFns = {
+  syncSecrets: async (
+    secretSync: TGitLabSyncWithCredentials,
+    secretMap: TSecretMap,
+    { appConnectionDAL, kmsService }: TGitLabSyncFactoryDeps
+  ): Promise<void> => {
+    const { connection, environment, destinationConfig } = secretSync;
+
+    const { projectId, targetEnvironment } = destinationConfig;
+
+    const accessToken = await getValidAccessToken(connection, appConnectionDAL, kmsService);
+
+    try {
+      const currentVariables = await getGitLabVariables({
+        accessToken,
+        connection,
+        projectId,
+        targetEnvironment
+      });
+
+      const currentVariableMap = new Map(currentVariables.map((v) => [v.key, v]));
+
+      for (const [key, { value }] of Object.entries(secretMap)) {
+        const existingVariable = currentVariableMap.get(key);
+
+        if (existingVariable) {
+          if (existingVariable.value !== value) {
+            await updateGitLabVariable({
+              accessToken,
+              connection,
+              projectId,
+              key,
+              variable: {
+                value,
+                variable_type: existingVariable.variable_type,
+                environment_scope: targetEnvironment || existingVariable.environment_scope,
+                protected: destinationConfig.shouldProtectSecrets ?? existingVariable.protected,
+                ...(!existingVariable.masked && destinationConfig.shouldMaskSecrets && { masked: value?.length > 8 }),
+                ...(!existingVariable.hidden &&
+                  destinationConfig.shouldHideSecrets && { masked_and_hidden: value?.length > 8 }),
+                description: existingVariable.description ?? undefined
+              },
+              targetEnvironment
+            });
+          }
+        } else {
+          await createGitLabVariable({
+            accessToken,
+            connection,
+            projectId,
+            variable: {
+              key,
+              value,
+              variable_type: "env_var",
+              environment_scope: targetEnvironment || "*",
+              protected: destinationConfig.shouldProtectSecrets || false,
+              masked: value?.length > 8 ? destinationConfig.shouldMaskSecrets || false : false,
+              masked_and_hidden: value?.length > 8 ? destinationConfig.shouldHideSecrets || false : false
+            }
+          });
+        }
+      }
+
+      if (!secretSync.syncOptions.disableSecretDeletion) {
+        for (const variable of currentVariables) {
+          const shouldDelete =
+            matchesSchema(variable.key, environment?.slug || "", secretSync.syncOptions.keySchema) &&
+            !(variable.key in secretMap);
+
+          if (shouldDelete) {
+            await deleteGitLabVariable({
+              accessToken,
+              connection,
+              projectId,
+              key: variable.key,
+              targetEnvironment
+            });
+          }
+        }
+      }
+    } catch (error) {
+      throw new SecretSyncError({
+        error,
+        secretKey: "batch_sync"
+      });
+    }
+  },
+
+  removeSecrets: async (
+    secretSync: TGitLabSyncWithCredentials,
+    secretMap: TSecretMap,
+    { appConnectionDAL, kmsService }: TGitLabSyncFactoryDeps
+  ): Promise<void> => {
+    const { connection, destinationConfig } = secretSync;
+
+    const { projectId, targetEnvironment } = destinationConfig;
+
+    const accessToken = await getValidAccessToken(connection, appConnectionDAL, kmsService);
+
+    try {
+      for (const key of Object.keys(secretMap)) {
+        await deleteGitLabVariable({
+          accessToken,
+          connection,
+          projectId,
+          key,
+          targetEnvironment
+        });
+      }
+    } catch (error) {
+      throw new SecretSyncError({
+        error,
+        secretKey: "batch_remove"
+      });
+    }
+  },
+
+  getSecrets: async (secretSync: TGitLabSyncWithCredentials): Promise<TSecretMap> => {
+    throw new Error(`${SECRET_SYNC_NAME_MAP[secretSync.destination]} does not support importing secrets.`);
+  }
+};

backend/src/services/secret-sync/gitlab/gitlab-sync-schemas.ts

@@ -0,0 +1,101 @@
+import { z } from "zod";
+
+import { SecretSyncs } from "@app/lib/api-docs";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import { SecretSync } from "@app/services/secret-sync/secret-sync-enums";
+import {
+  BaseSecretSyncSchema,
+  GenericCreateSecretSyncFieldsSchema,
+  GenericUpdateSecretSyncFieldsSchema
+} from "@app/services/secret-sync/secret-sync-schemas";
+import { TSyncOptionsConfig } from "@app/services/secret-sync/secret-sync-types";
+
+import { GitLabSyncScope } from "./gitlab-sync-enums";
+
+const GitLabSyncDestinationConfigSchema = z.discriminatedUnion("scope", [
+  z.object({
+    scope: z.literal(GitLabSyncScope.Individual).describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.scope),
+    projectId: z.string().min(1, "Project ID is required").describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.projectId),
+    projectName: z
+      .string()
+      .min(1, "Project name is required")
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.projectName),
+    targetEnvironment: z
+      .string()
+      .optional()
+      .default("*")
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.targetEnvironment),
+    shouldProtectSecrets: z
+      .boolean()
+      .optional()
+      .default(false)
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.shouldProtectSecrets),
+    shouldMaskSecrets: z
+      .boolean()
+      .optional()
+      .default(false)
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.shouldMaskSecrets),
+    shouldHideSecrets: z
+      .boolean()
+      .optional()
+      .default(false)
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.shouldHideSecrets)
+  }),
+  z.object({
+    scope: z.literal(GitLabSyncScope.Group).describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.scope),
+    groupId: z.string().min(1, "Group ID is required").describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.groupId),
+    projectId: z.string().min(1, "Project ID is required").describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.projectId),
+    projectName: z
+      .string()
+      .min(1, "Project name is required")
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.projectName),
+    targetEnvironment: z
+      .string()
+      .optional()
+      .default("*")
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.targetEnvironment),
+    shouldProtectSecrets: z
+      .boolean()
+      .optional()
+      .default(false)
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.shouldProtectSecrets),
+    shouldMaskSecrets: z
+      .boolean()
+      .optional()
+      .default(false)
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.shouldMaskSecrets),
+    shouldHideSecrets: z
+      .boolean()
+      .optional()
+      .default(false)
+      .describe(SecretSyncs.DESTINATION_CONFIG.GITLAB.shouldHideSecrets)
+  })
+]);
+
+const GitLabSyncOptionsConfig: TSyncOptionsConfig = { canImportSecrets: false };
+
+export const GitLabSyncSchema = BaseSecretSyncSchema(SecretSync.GitLab, GitLabSyncOptionsConfig).extend({
+  destination: z.literal(SecretSync.GitLab),
+  destinationConfig: GitLabSyncDestinationConfigSchema
+});
+
+export const CreateGitLabSyncSchema = GenericCreateSecretSyncFieldsSchema(
+  SecretSync.GitLab,
+  GitLabSyncOptionsConfig
+).extend({
+  destinationConfig: GitLabSyncDestinationConfigSchema
+});
+
+export const UpdateGitLabSyncSchema = GenericUpdateSecretSyncFieldsSchema(
+  SecretSync.GitLab,
+  GitLabSyncOptionsConfig
+).extend({
+  destinationConfig: GitLabSyncDestinationConfigSchema.optional()
+});
+
+export const GitLabSyncListItemSchema = z.object({
+  name: z.literal("GitLab"),
+  connection: z.literal(AppConnection.GitLab),
+  destination: z.literal(SecretSync.GitLab),
+  canImportSecrets: z.literal(false)
+});

backend/src/services/secret-sync/gitlab/gitlab-sync-types.ts

@@ -0,0 +1,64 @@
+import { z } from "zod";
+
+import { TGitLabConnection } from "@app/services/app-connection/gitlab";
+
+import { CreateGitLabSyncSchema, GitLabSyncListItemSchema, GitLabSyncSchema } from "./gitlab-sync-schemas";
+
+export type TGitLabSync = z.infer<typeof GitLabSyncSchema>;
+export type TGitLabSyncInput = z.infer<typeof CreateGitLabSyncSchema>;
+export type TGitLabSyncListItem = z.infer<typeof GitLabSyncListItemSchema>;
+
+export type TGitLabSyncWithCredentials = TGitLabSync & {
+  connection: TGitLabConnection;
+};
+
+// GitLab CI/CD Variable structure based on API documentation
+export type TGitLabVariable = {
+  key: string;
+  value: string;
+  variable_type: "env_var" | "file";
+  protected: boolean;
+  masked: boolean;
+  hidden: boolean;
+  raw: boolean;
+  environment_scope: string;
+  description: string | null;
+};
+
+// Type for creating a new variable
+export type TGitLabVariableCreate = {
+  key: string;
+  value: string;
+  variable_type?: "env_var" | "file";
+  protected?: boolean;
+  masked?: boolean;
+  raw?: boolean;
+  environment_scope?: string;
+  description?: string;
+};
+
+// Type for updating an existing variable
+export type TGitLabVariableUpdate = {
+  value: string;
+  variable_type?: "env_var" | "file";
+  protected?: boolean;
+  masked?: boolean;
+  raw?: boolean;
+  environment_scope?: string;
+  description?: string | null;
+};
+
+export type TGitLabListVariables = {
+  accessToken: string;
+  projectId: string;
+  environmentScope?: string;
+};
+
+export type TGitLabCreateVariable = TGitLabListVariables & {
+  variable: TGitLabVariableCreate;
+};
+
+export type TGitLabUpdateVariable = TGitLabListVariables & {
+  key: string;
+  variable: TGitLabVariableUpdate;
+};

backend/src/services/secret-sync/gitlab/index.ts

@@ -0,0 +1,4 @@
+export * from "./gitlab-sync-constants";
+export * from "./gitlab-sync-fns";
+export * from "./gitlab-sync-schemas";
+export * from "./gitlab-sync-types";

backend/src/services/secret-sync/secret-sync-enums.ts

@@ -18,7 +18,8 @@ export enum SecretSync {
   OnePass = "1password",
   Heroku = "heroku",
   Render = "render",
-  Flyio = "flyio"
+  Flyio = "flyio",
+  GitLab = "gitlab"
 }
 
 export enum SecretSyncInitialSyncBehavior {

backend/src/services/secret-sync/secret-sync-fns.ts

@@ -32,6 +32,7 @@ import { CAMUNDA_SYNC_LIST_OPTION, camundaSyncFactory } from "./camunda";
 import { FLYIO_SYNC_LIST_OPTION, FlyioSyncFns } from "./flyio";
 import { GCP_SYNC_LIST_OPTION } from "./gcp";
 import { GcpSyncFns } from "./gcp/gcp-sync-fns";
+import { GITLAB_SYNC_LIST_OPTION, GitLabSyncFns } from "./gitlab";
 import { HC_VAULT_SYNC_LIST_OPTION, HCVaultSyncFns } from "./hc-vault";
 import { HEROKU_SYNC_LIST_OPTION, HerokuSyncFns } from "./heroku";
 import { HUMANITEC_SYNC_LIST_OPTION } from "./humanitec";
@@ -63,7 +64,8 @@ const SECRET_SYNC_LIST_OPTIONS: Record<SecretSync, TSecretSyncListItem> = {
   [SecretSync.OnePass]: ONEPASS_SYNC_LIST_OPTION,
   [SecretSync.Heroku]: HEROKU_SYNC_LIST_OPTION,
   [SecretSync.Render]: RENDER_SYNC_LIST_OPTION,
-  [SecretSync.Flyio]: FLYIO_SYNC_LIST_OPTION
+  [SecretSync.Flyio]: FLYIO_SYNC_LIST_OPTION,
+  [SecretSync.GitLab]: GITLAB_SYNC_LIST_OPTION
 };
 
 export const listSecretSyncOptions = () => {
@@ -227,6 +229,8 @@ export const SecretSyncFns = {
         return RenderSyncFns.syncSecrets(secretSync, schemaSecretMap);
       case SecretSync.Flyio:
         return FlyioSyncFns.syncSecrets(secretSync, schemaSecretMap);
+      case SecretSync.GitLab:
+        return GitLabSyncFns.syncSecrets(secretSync, schemaSecretMap, { appConnectionDAL, kmsService });
       default:
         throw new Error(
           `Unhandled sync destination for sync secrets fns: ${(secretSync as TSecretSyncWithCredentials).destination}`
@@ -313,6 +317,9 @@ export const SecretSyncFns = {
       case SecretSync.Flyio:
         secretMap = await FlyioSyncFns.getSecrets(secretSync);
         break;
+      case SecretSync.GitLab:
+        secretMap = await GitLabSyncFns.getSecrets(secretSync);
+        break;
       default:
         throw new Error(
           `Unhandled sync destination for get secrets fns: ${(secretSync as TSecretSyncWithCredentials).destination}`
@@ -386,6 +393,8 @@ export const SecretSyncFns = {
         return RenderSyncFns.removeSecrets(secretSync, schemaSecretMap);
       case SecretSync.Flyio:
         return FlyioSyncFns.removeSecrets(secretSync, schemaSecretMap);
+      case SecretSync.GitLab:
+        return GitLabSyncFns.removeSecrets(secretSync, schemaSecretMap, { appConnectionDAL, kmsService });
       default:
         throw new Error(
           `Unhandled sync destination for remove secrets fns: ${(secretSync as TSecretSyncWithCredentials).destination}`

backend/src/services/secret-sync/secret-sync-maps.ts

@@ -21,7 +21,8 @@ export const SECRET_SYNC_NAME_MAP: Record<SecretSync, string> = {
   [SecretSync.OnePass]: "1Password",
   [SecretSync.Heroku]: "Heroku",
   [SecretSync.Render]: "Render",
-  [SecretSync.Flyio]: "Fly.io"
+  [SecretSync.Flyio]: "Fly.io",
+  [SecretSync.GitLab]: "GitLab"
 };
 
 export const SECRET_SYNC_CONNECTION_MAP: Record<SecretSync, AppConnection> = {
@@ -44,7 +45,8 @@ export const SECRET_SYNC_CONNECTION_MAP: Record<SecretSync, AppConnection> = {
   [SecretSync.OnePass]: AppConnection.OnePass,
   [SecretSync.Heroku]: AppConnection.Heroku,
   [SecretSync.Render]: AppConnection.Render,
-  [SecretSync.Flyio]: AppConnection.Flyio
+  [SecretSync.Flyio]: AppConnection.Flyio,
+  [SecretSync.GitLab]: AppConnection.GitLab
 };
 
 export const SECRET_SYNC_PLAN_MAP: Record<SecretSync, SecretSyncPlanType> = {
@@ -67,5 +69,6 @@ export const SECRET_SYNC_PLAN_MAP: Record<SecretSync, SecretSyncPlanType> = {
   [SecretSync.OnePass]: SecretSyncPlanType.Regular,
   [SecretSync.Heroku]: SecretSyncPlanType.Regular,
   [SecretSync.Render]: SecretSyncPlanType.Regular,
-  [SecretSync.Flyio]: SecretSyncPlanType.Regular
+  [SecretSync.Flyio]: SecretSyncPlanType.Regular,
+  [SecretSync.GitLab]: SecretSyncPlanType.Regular
 };

backend/src/services/secret-sync/secret-sync-types.ts

@@ -74,6 +74,7 @@ import {
 } from "./azure-key-vault";
 import { TFlyioSync, TFlyioSyncInput, TFlyioSyncListItem, TFlyioSyncWithCredentials } from "./flyio/flyio-sync-types";
 import { TGcpSync, TGcpSyncInput, TGcpSyncListItem, TGcpSyncWithCredentials } from "./gcp";
+import { TGitLabSync, TGitLabSyncInput, TGitLabSyncListItem, TGitLabSyncWithCredentials } from "./gitlab";
 import {
   THCVaultSync,
   THCVaultSyncInput,
@@ -127,7 +128,8 @@ export type TSecretSync =
   | TOnePassSync
   | THerokuSync
   | TRenderSync
-  | TFlyioSync;
+  | TFlyioSync
+  | TGitLabSync;
 
 export type TSecretSyncWithCredentials =
   | TAwsParameterStoreSyncWithCredentials
@@ -149,7 +151,8 @@ export type TSecretSyncWithCredentials =
   | TOnePassSyncWithCredentials
   | THerokuSyncWithCredentials
   | TRenderSyncWithCredentials
-  | TFlyioSyncWithCredentials;
+  | TFlyioSyncWithCredentials
+  | TGitLabSyncWithCredentials;
 
 export type TSecretSyncInput =
   | TAwsParameterStoreSyncInput
@@ -171,7 +174,8 @@ export type TSecretSyncInput =
   | TOnePassSyncInput
   | THerokuSyncInput
   | TRenderSyncInput
-  | TFlyioSyncInput;
+  | TFlyioSyncInput
+  | TGitLabSyncInput;
 
 export type TSecretSyncListItem =
   | TAwsParameterStoreSyncListItem
@@ -193,7 +197,8 @@ export type TSecretSyncListItem =
   | TOnePassSyncListItem
   | THerokuSyncListItem
   | TRenderSyncListItem
-  | TFlyioSyncListItem;
+  | TFlyioSyncListItem
+  | TGitLabSyncListItem;
 
 export type TSyncOptionsConfig = {
   canImportSecrets: boolean;

docs/api-reference/endpoints/app-connections/gitlab/available.mdx

@@ -0,0 +1,4 @@
+---
+title: "Available"
+openapi: "GET /api/v1/app-connections/gitlab/available"
+---

docs/api-reference/endpoints/app-connections/gitlab/create.mdx

@@ -0,0 +1,10 @@
+---
+title: "Create"
+openapi: "POST /api/v1/app-connections/gitlab"
+---
+
+<Note>
+    Gitlab OAuth Connections must be created through the Infisical UI.
+    Check out the configuration docs for [Gitlab OAuth Connections](/integrations/app-connections/gitlab) for a step-by-step
+    guide.
+</Note>

docs/api-reference/endpoints/app-connections/gitlab/delete.mdx

@@ -0,0 +1,4 @@
+---
+title: "Delete"
+openapi: "DELETE /api/v1/app-connections/gitlab/{connectionId}"
+---

docs/api-reference/endpoints/app-connections/gitlab/get-by-id.mdx

@@ -0,0 +1,4 @@
+---
+title: "Get by ID"
+openapi: "GET /api/v1/app-connections/gitlab/{connectionId}"
+---

docs/api-reference/endpoints/app-connections/gitlab/get-by-name.mdx

@@ -0,0 +1,4 @@
+---
+title: "Get by Name"
+openapi: "GET /api/v1/app-connections/gitlab/connection-name/{connectionName}"
+---

docs/api-reference/endpoints/app-connections/gitlab/list.mdx

@@ -0,0 +1,4 @@
+---
+title: "List"
+openapi: "GET /api/v1/app-connections/gitlab"
+---

docs/api-reference/endpoints/app-connections/gitlab/update.mdx

@@ -0,0 +1,10 @@
+---
+title: "Update"
+openapi: "PATCH /api/v1/app-connections/gitlab/{connectionId}"
+---
+
+<Note>
+    Gitlab OAuth Connections must be updated through the Infisical UI.
+    Check out the configuration docs for [Gitlab OAuth Connections](/integrations/app-connections/gitlab) for a step-by-step
+    guide.
+</Note>

docs/api-reference/endpoints/secret-syncs/gitlab/create.mdx

@@ -0,0 +1,4 @@
+---
+title: "Create"
+openapi: "POST /api/v1/secret-syncs/gitlab"
+---

docs/api-reference/endpoints/secret-syncs/gitlab/delete.mdx

@@ -0,0 +1,4 @@
+---
+title: "Delete"
+openapi: "DELETE /api/v1/secret-syncs/gitlab/{syncId}"
+---

docs/api-reference/endpoints/secret-syncs/gitlab/get-by-id.mdx

@@ -0,0 +1,4 @@
+---
+title: "Get by ID"
+openapi: "GET /api/v1/secret-syncs/gitlab/{syncId}"
+---

docs/api-reference/endpoints/secret-syncs/gitlab/get-by-name.mdx

@@ -0,0 +1,4 @@
+---
+title: "Get by Name"
+openapi: "GET /api/v1/secret-syncs/gitlab/sync-name/{syncName}"
+---

docs/api-reference/endpoints/secret-syncs/gitlab/list.mdx

@@ -0,0 +1,4 @@
+---
+title: "List"
+openapi: "GET /api/v1/secret-syncs/gitlab"
+---

docs/api-reference/endpoints/secret-syncs/gitlab/remove-secrets.mdx

@@ -0,0 +1,4 @@
+---
+title: "Remove Secrets"
+openapi: "POST /api/v1/secret-syncs/gitlab/{syncId}/remove-secrets"
+---

docs/api-reference/endpoints/secret-syncs/gitlab/sync-secrets.mdx

@@ -0,0 +1,4 @@
+---
+title: "Sync Secrets"
+openapi: "POST /api/v1/secret-syncs/gitlab/{syncId}/sync-secrets"
+---

docs/api-reference/endpoints/secret-syncs/gitlab/update.mdx

@@ -0,0 +1,4 @@
+---
+title: "Update"
+openapi: "PATCH /api/v1/secret-syncs/gitlab/{syncId}"
+---

docs/integrations/app-connections/gitlab.mdx

@@ -0,0 +1,176 @@
+---
+title: "GitLab App Connection"
+description: "Learn how to configure a GitLab App Connection for Infisical using OAuth or Access Token methods."
+---
+
+Infisical supports two methods for connecting to GitLab: **OAuth** and **Access Token**. Choose the method that best fits your setup and security requirements.
+
+<Tabs>
+  <Tab title="OAuth Method">
+    The OAuth method provides secure authentication through GitLab's OAuth flow.
+
+    <Accordion title="Self-Hosted Instance Setup">
+      Using the GitLab App Connection with OAuth on a self-hosted instance of Infisical requires configuring an OAuth application in GitLab and registering your instance with it.
+
+      **Prerequisites:**
+      - A GitLab account with existing projects
+      - Self-hosted Infisical instance
+
+      <Steps>
+        <Step title="Create an OAuth application in GitLab">
+          Navigate to your user Settings > Applications to create a new GitLab application.
+
+          ![GitLab Dashboard](/images/app-connections/gitlab/gitlab-dashboard.png)
+          ![GitLab Applications Settings](/images/app-connections/gitlab/gitlab-applications.png)
+
+
+          Create the application. As part of the form, set the **Redirect URI** to `https://your-domain.com/integrations/gitlab/oauth2/callback`.
+
+          ![GitLab New Application Form](/images/app-connections/gitlab/gitlab-create-application-top.png)
+          ![GitLab New Application Form](/images/app-connections/gitlab/gitlab-create-application-bottom.png)
+
+          <Tip>
+            The domain you defined in the Redirect URI should be equivalent to the `SITE_URL` configured in your Infisical instance.
+          </Tip>
+
+          <Note>
+            If you have a GitLab group, you can create an OAuth application under it in your group Settings > Applications.
+          </Note>
+        </Step>
+        <Step title="Add your GitLab OAuth application credentials to Infisical">
+          Obtain the **Application ID** and **Secret** for your GitLab OAuth application.
+
+          ![GitLab Application Credentials](/images/app-connections/gitlab/gitlab-config-credentials.png)
+
+          Back in your Infisical instance, add two new environment variables for the credentials of your GitLab OAuth application:
+
+          - `CLIENT_ID_GITLAB`: The **Application ID** of your GitLab OAuth application.
+          - `CLIENT_SECRET_GITLAB`: The **Secret** of your GitLab OAuth application.
+
+          Once added, restart your Infisical instance and use the GitLab App Connection.
+        </Step>
+      </Steps>
+    </Accordion>
+
+    ## Setup GitLab OAuth Connection in Infisical
+
+    <Steps>
+      <Step title="Navigate to App Connections">
+        Navigate to the **App Connections** tab on the **Organization Settings** page.
+        ![App Connections Tab](/images/app-connections/general/add-connection.png)
+      </Step>
+      <Step title="Add Connection">
+        Select the **GitLab App Connection** option from the connection options modal.
+        ![Select GitLab Connection](/images/app-connections/gitlab/select-gitlab-connection.png)
+      </Step>
+      <Step title="Choose OAuth Method">
+        Select the **OAuth** method and click **Connect to GitLab**.
+
+        ![Connect via GitLab OAuth](/images/app-connections/gitlab/create-gitlab-oauth-connection.png)
+      </Step>
+      <Step title="Grant Access">
+        You will be redirected to GitLab to grant Infisical access to your GitLab account. Once granted, you will be redirected back to Infisical's App Connections page.
+        ![GitLab Authorization](/images/app-connections/gitlab/gitlab-authorization-page.png)
+      </Step>
+      <Step title="Connection Created">
+        Your **GitLab App Connection** is now available for use.
+        ![GitLab OAuth Connection](/images/app-connections/gitlab/gitlab-oauth-connection.png)
+      </Step>
+    </Steps>
+
+  </Tab>
+
+  <Tab title="Access Token Method">
+    The Access Token method uses a GitLab access token for authentication, providing a straightforward setup process.
+
+    ## Generate GitLab Access Token
+
+    <Tabs>
+      <Tab title="Personal Access Token">
+        Personal access tokens provide access to your GitLab account and all projects you have access to.
+
+        <Steps>
+          <Step title="Navigate to Access Tokens">
+            Log in to your GitLab account and navigate to User Settings > Access tokens. Click **Add new token** to create a new personal access token.
+
+            ![GitLab Personal Access Tokens](/images/app-connections/gitlab/gitlab-add-access-token.png)
+          </Step>
+          <Step title="Configure Token">
+            Fill in the token details:
+            - **Token name**: A descriptive name for the token (e.g., "connection-token")
+            - **Expiration date**: Set an appropriate expiration date
+            - **Select scopes**: Choose the **api** scope for full API access
+
+            ![GitLab Personal Token Form](/images/app-connections/gitlab/gitlab-personal-access-token-form.png)
+
+          </Step>
+          <Step title="Copy Token">
+            Copy the generated token immediately as it won't be shown again.
+
+            ![GitLab Personal Token Created](/images/app-connections/gitlab/gitlab-copy-token.png)
+
+            <Warning>
+              Keep your access token secure and do not share it. Anyone with access to this token can access your GitLab account and projects.
+            </Warning>
+          </Step>
+        </Steps>
+      </Tab>
+
+      <Tab title="Project Access Token">
+        Project access tokens provide access to a specific GitLab project, offering more granular control.
+
+        <Steps>
+          <Step title="Navigate to Project Settings">
+            Go to your GitLab project and navigate to Settings > Access Tokens. Click **Add new token** to create a new project access token.
+
+            ![GitLab Project Access Tokens](/images/app-connections/gitlab/gitlab-project-access-token-list.png)
+          </Step>
+          <Step title="Configure Token">
+            Fill in the token details:
+            - **Token name**: A descriptive name for the token
+            - **Expiration date**: Set an appropriate expiration date
+            - **Select role**: Choose **Owner** or higher role
+            - **Select scopes**: Choose the **api** scope for API access
+
+            ![GitLab Create Project Token](/images/app-connections/gitlab/gitlab-project-access-token-form.png)
+
+          </Step>
+          <Step title="Copy Token">
+            Copy the generated token immediately as it won't be shown again.
+
+            ![GitLab Project Token Form](/images/app-connections/gitlab/gitlab-project-access-token-created.png)
+          </Step>
+        </Steps>
+      </Tab>
+    </Tabs>
+
+    ## Setup GitLab Access Token Connection in Infisical
+
+    <Steps>
+      <Step title="Navigate to App Connections">
+        Navigate to the **App Connections** tab on the **Organization Settings** page.
+        ![App Connections Tab](/images/app-connections/general/add-connection.png)
+      </Step>
+      <Step title="Add Connection">
+        Select the **GitLab App Connection** option from the connection options modal.
+        ![Select GitLab Connection](/images/app-connections/gitlab/select-gitlab-connection.png)
+      </Step>
+      <Step title="Configure Access Token">
+        Select the **Access Token** method and paste your GitLab access token in the provided field.
+
+        ![Configure Access Token](/images/app-connections/gitlab/create-gitlab-access-token-connection.png)
+
+        Click **Connect** to establish the connection.
+      </Step>
+      <Step title="Connection Created">
+        Your **GitLab App Connection** is now available for use.
+        ![GitLab Access Token Connection](/images/app-connections/gitlab/gitlab-access-token-connection.png)
+      </Step>
+    </Steps>
+
+    <Info>
+      Access Token connections require manual token rotation when your GitLab access token expires or is regenerated. Monitor your connection status and update the token as needed.
+    </Info>
+
+  </Tab>
+</Tabs>

docs/integrations/secret-syncs/gitlab.mdx

@@ -0,0 +1,175 @@
+---
+title: "GitLab Sync"
+description: "Learn how to configure a GitLab Sync for Infisical."
+---
+
+**Prerequisites:**
+
+        - Set up and add secrets to [Infisical Cloud](https://app.infisical.com)
+        - Create a [GitLab Connection](/integrations/app-connections/gitlab)
+
+<Tabs>
+    <Tab title="Infisical UI">
+        1. Navigate to **Project** > **Integrations** and select the **Secret Syncs** tab. Click on the **Add Sync** button.
+        ![Secret Syncs Tab](/images/secret-syncs/general/secret-sync-tab.png)
+
+        2. Select the **GitLab** option.
+        ![Select GitLab](/images/secret-syncs/gitlab/gitlab-secret-sync-option.png)
+
+        3. Configure the **Source** from where secrets should be retrieved, then click **Next**.
+        ![Configure Source](/images/secret-syncs/gitlab/gitlab-secret-sync-source.png)
+
+            - **Environment**: The project environment to retrieve secrets from.
+            - **Secret Path**: The folder path to retrieve secrets from.
+
+        <Tip>
+            If you need to sync secrets from multiple folder locations, check out [secret imports](/documentation/platform/secret-reference#secret-imports).
+        </Tip>
+
+        4. Configure the **Destination** to where secrets should be deployed, then click **Next**.
+        ![Configure Destination](/images/secret-syncs/gitlab/gitlab-secret-sync-destination.png)
+
+            - **GitLab Connection**: The GitLab Connection to authenticate with.
+            - **Scope**: The GitLab secret scope to sync secrets to.
+                - **Individual**: Sync secrets to a specific project.
+                - **Group**: Sync secrets to a project within a group.
+            <p class="height:1px"  />
+            The remaining fields are determined by the selected **Scope**:
+            <AccordionGroup>
+                <Accordion title="Individual">
+                    - **GitLab Project**: The project to deploy secrets to.
+                    - **GitLab Environment Scope**: The environment scope to deploy secrets to (optional, defaults to "*" for all environments).
+                    - **Mark Infisical secrets in GitLab as 'Protected' secrets**: If enabled, synced secrets will be marked as protected in GitLab.
+                    - **Mark Infisical secrets in GitLab as 'Masked' secrets**: If enabled, synced secrets will be masked in GitLab CI/CD logs.
+                    - **Mark Infisical secrets in GitLab as 'Hidden' secrets**: If enabled, synced secrets will be hidden from the GitLab UI.
+                </Accordion>
+                <Accordion title="Group">
+                    - **GitLab Group**: The group containing the project.
+                    - **GitLab Project**: The project to deploy secrets to.
+                    - **GitLab Environment Scope**: The environment scope to deploy secrets to (optional, defaults to "*" for all environments).
+                    - **Mark Infisical secrets in GitLab as 'Protected' secrets**: If enabled, synced secrets will be marked as protected in GitLab.
+                    - **Mark Infisical secrets in GitLab as 'Masked' secrets**: If enabled, synced secrets will be masked in GitLab CI/CD logs.
+                    - **Mark Infisical secrets in GitLab as 'Hidden' secrets**: If enabled, synced secrets will be hidden from the GitLab UI.
+                </Accordion>
+            </AccordionGroup>
+
+        5. Configure the **Sync Options** to specify how secrets should be synced, then click **Next**.
+        ![Configure Options](/images/secret-syncs/gitlab/gitlab-secret-sync-options.png)
+
+            - **Initial Sync Behavior**: Determines how Infisical should resolve the initial sync.
+                - **Overwrite Destination Secrets**: Removes any secrets at the destination endpoint not present in Infisical.
+                <Note>
+                    GitLab does not support importing secrets.
+                </Note>
+            - **Key Schema**: Template that determines how secret names are transformed when syncing, using `{{secretKey}}` as a placeholder for the original secret name and `{{environment}}` for the environment.
+            <Note>
+                We highly recommend using a Key Schema to ensure that Infisical only manages the specific keys you intend, keeping everything else untouched.
+            </Note>
+            - **Auto-Sync Enabled**: If enabled, secrets will automatically be synced from the source location when changes occur. Disable to enforce manual syncing only.
+            - **Disable Secret Deletion**: If enabled, Infisical will not remove secrets from the sync destination. Enable this option if you intend to manage some secrets manually outside of Infisical.
+
+        6. Configure the **Details** of your GitLab Sync, then click **Next**.
+        ![Configure Details](/images/secret-syncs/gitlab/gitlab-secret-sync-details.png)
+
+            - **Name**: The name of your sync. Must be slug-friendly.
+            - **Description**: An optional description for your sync.
+
+        7. Review your GitLab Sync configuration, then click **Create Sync**.
+        ![Confirm Configuration](/images/secret-syncs/gitlab/gitlab-secret-sync-review.png)
+
+        8. If enabled, your GitLab Sync will begin syncing your secrets to the destination endpoint.
+        ![Sync Secrets](/images/secret-syncs/gitlab/gitlab-secret-sync-created.png)
+
+    </Tab>
+    <Tab title="API">
+        To create a **GitLab Sync**, make an API request to the [Create GitLab Sync](/api-reference/endpoints/secret-syncs/gitlab/create) API endpoint.
+
+        ### Sample request
+
+        ```bash Request
+        curl    --request POST \
+        --url https://app.infisical.com/api/v1/secret-syncs/gitlab \
+        --header 'Content-Type: application/json' \
+        --data '{
+            "name": "my-gitlab-sync",
+            "projectId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+            "description": "an example sync",
+            "connectionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+            "environment": "dev",
+            "secretPath": "/my-secrets",
+            "isEnabled": true,
+            "syncOptions": {
+                "initialSyncBehavior": "overwrite-destination"
+            },
+            "destinationConfig": {
+                "scope": "individual",
+                "projectId": "70998370",
+                "projectName": "test",
+                "targetEnvironment": "*",
+                "shouldProtectSecrets": true,
+                "shouldMaskSecrets": true,
+                "shouldHideSecrets": false
+            }
+        }'
+        ```
+
+        ### Sample response
+
+        ```bash Response
+        {
+            "secretSync": {
+                "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "name": "my-gitlab-sync",
+                "description": "an example sync",
+                "isEnabled": true,
+                "version": 1,
+                "folderId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "connectionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "createdAt": "2023-11-07T05:31:56Z",
+                "updatedAt": "2023-11-07T05:31:56Z",
+                "syncStatus": "succeeded",
+                "lastSyncJobId": "123",
+                "lastSyncMessage": null,
+                "lastSyncedAt": "2023-11-07T05:31:56Z",
+                "importStatus": null,
+                "lastImportJobId": null,
+                "lastImportMessage": null,
+                "lastImportedAt": null,
+                "removeStatus": null,
+                "lastRemoveJobId": null,
+                "lastRemoveMessage": null,
+                "lastRemovedAt": null,
+                "syncOptions": {
+                    "initialSyncBehavior": "overwrite-destination"
+                },
+                "projectId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "connection": {
+                    "app": "gitlab",
+                    "name": "my-gitlab-connection",
+                    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
+                },
+                "environment": {
+                    "slug": "dev",
+                    "name": "Development",
+                    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
+                },
+                "folder": {
+                    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                    "path": "/my-secrets"
+                },
+                "destination": "gitlab",
+                "destinationConfig": {
+                    "scope": "individual",
+                    "projectId": "70998370",
+                    "projectName": "test",
+                    "targetEnvironment": "*",
+                    "shouldProtectSecrets": true,
+                    "shouldMaskSecrets": true,
+                    "shouldHideSecrets": false
+                }
+            }
+        }
+        ```
+    </Tab>
+
+</Tabs>

docs/mint.json

@@ -508,6 +508,7 @@
             "integrations/app-connections/gcp",
             "integrations/app-connections/github",
             "integrations/app-connections/github-radar",
+            "integrations/app-connections/gitlab",
             "integrations/app-connections/hashicorp-vault",
             "integrations/app-connections/heroku",
             "integrations/app-connections/humanitec",
@@ -544,6 +545,7 @@
             "integrations/secret-syncs/flyio",
             "integrations/secret-syncs/gcp-secret-manager",
             "integrations/secret-syncs/github",
+            "integrations/secret-syncs/gitlab",
             "integrations/secret-syncs/hashicorp-vault",
             "integrations/secret-syncs/heroku",
             "integrations/secret-syncs/humanitec",
@@ -1305,6 +1307,18 @@
                 "api-reference/endpoints/app-connections/github/delete"
               ]
             },
+            {
+              "group": "GitLab",
+              "pages": [
+                "api-reference/endpoints/app-connections/gitlab/list",
+                "api-reference/endpoints/app-connections/gitlab/available",
+                "api-reference/endpoints/app-connections/gitlab/get-by-id",
+                "api-reference/endpoints/app-connections/gitlab/get-by-name",
+                "api-reference/endpoints/app-connections/gitlab/create",
+                "api-reference/endpoints/app-connections/gitlab/update",
+                "api-reference/endpoints/app-connections/gitlab/delete"
+              ]
+            },
             {
               "group": "GitHub Radar",
               "pages": [
@@ -1642,6 +1656,19 @@
                 "api-reference/endpoints/secret-syncs/github/remove-secrets"
               ]
             },
+            {
+              "group": "GitLab",
+              "pages": [
+                "api-reference/endpoints/secret-syncs/gitlab/list",
+                "api-reference/endpoints/secret-syncs/gitlab/get-by-id",
+                "api-reference/endpoints/secret-syncs/gitlab/get-by-name",
+                "api-reference/endpoints/secret-syncs/gitlab/create",
+                "api-reference/endpoints/secret-syncs/gitlab/update",
+                "api-reference/endpoints/secret-syncs/gitlab/delete",
+                "api-reference/endpoints/secret-syncs/gitlab/sync-secrets",
+                "api-reference/endpoints/secret-syncs/gitlab/remove-secrets"
+              ]
+            },
             {
               "group": "Hashicorp Vault",
               "pages": [

frontend/src/components/secret-syncs/forms/SecretSyncDestinationFields/GitlabSyncFields.tsx

@@ -0,0 +1,278 @@
+import { Controller, useFormContext, useWatch } from "react-hook-form";
+import { SingleValue } from "react-select";
+import { faCircleInfo } from "@fortawesome/free-solid-svg-icons";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+
+import { SecretSyncConnectionField } from "@app/components/secret-syncs/forms/SecretSyncConnectionField";
+import {
+  FilterableSelect,
+  FormControl,
+  Input,
+  Select,
+  SelectItem,
+  Switch,
+  Tooltip
+} from "@app/components/v2";
+import {
+  TGitLabGroup,
+  TGitLabProject,
+  useGitlabConnectionListGroups,
+  useGitlabConnectionListProjects
+} from "@app/hooks/api/appConnections/gitlab";
+import { SecretSync } from "@app/hooks/api/secretSyncs";
+import { GitlabSyncScope } from "@app/hooks/api/secretSyncs/types/gitlab-sync";
+
+import { TSecretSyncForm } from "../schemas";
+
+const SecretProtectionOption = ({
+  title,
+  isEnabled,
+  onChange,
+  id,
+  isDisabled = false,
+  tooltip
+}: {
+  title: string;
+  isEnabled: boolean;
+  onChange: (checked: boolean) => void;
+  id: string;
+  isDisabled?: boolean;
+  tooltip?: string;
+}) => {
+  return (
+    <div className="flex items-start justify-between rounded-lg border border-mineshaft-600 bg-mineshaft-800/50 p-4 transition-all duration-200 hover:border-mineshaft-500">
+      <div className="flex flex-1 items-start space-x-3">
+        <div className="min-w-0 flex-1">
+          <div className="mb-1 flex items-center gap-2">
+            <h4 className="text-sm font-medium text-bunker-100">{title}</h4>
+            {tooltip && (
+              <Tooltip className="max-w-sm" content={tooltip}>
+                <FontAwesomeIcon
+                  icon={faCircleInfo}
+                  className="cursor-help text-xs text-mineshaft-400 hover:text-mineshaft-300"
+                />
+              </Tooltip>
+            )}
+          </div>
+        </div>
+      </div>
+      <div className="ml-4 flex-shrink-0">
+        <Switch id={id} onCheckedChange={onChange} isChecked={isEnabled} isDisabled={isDisabled} />
+      </div>
+    </div>
+  );
+};
+
+export const GitLabSyncFields = () => {
+  const { control, setValue } = useFormContext<
+    TSecretSyncForm & { destination: SecretSync.Gitlab }
+  >();
+
+  const connectionId = useWatch({ name: "connection.id", control });
+  const scope = useWatch({ name: "destinationConfig.scope", control });
+  const selectedGroup = useWatch({ name: "destinationConfig.groupId", control });
+  const shouldMaskSecrets = useWatch({ name: "destinationConfig.shouldMaskSecrets", control });
+
+  const { data: groups, isLoading: isGroupsLoading } = useGitlabConnectionListGroups(connectionId, {
+    enabled: Boolean(connectionId) && scope === GitlabSyncScope.Group
+  });
+
+  const { data: projects, isLoading: isProjectsLoading } = useGitlabConnectionListProjects(
+    connectionId,
+    selectedGroup,
+    {
+      enabled: Boolean(connectionId)
+    }
+  );
+
+  return (
+    <div className="h-[calc(100vh-20rem)] overflow-auto">
+      <SecretSyncConnectionField
+        onChange={() => {
+          setValue("destinationConfig.projectId", "");
+          setValue("destinationConfig.projectName", "");
+          setValue("destinationConfig.groupId", "");
+          setValue("destinationConfig.scope", GitlabSyncScope.Individual);
+        }}
+      />
+
+      <Controller
+        name="destinationConfig.scope"
+        control={control}
+        defaultValue={GitlabSyncScope.Individual}
+        render={({ field: { value, onChange }, fieldState: { error } }) => (
+          <FormControl errorText={error?.message} isError={Boolean(error?.message)} label="Scope">
+            <Select
+              value={value}
+              onValueChange={(val) => {
+                onChange(val);
+                setValue("destinationConfig.projectId", "");
+                setValue("destinationConfig.projectName", "");
+                setValue("destinationConfig.groupId", "");
+              }}
+              className="w-full border border-mineshaft-500 capitalize"
+              position="popper"
+              placeholder="Select a scope..."
+              dropdownContainerClassName="max-w-none"
+            >
+              {Object.values(GitlabSyncScope).map((projectScope) => (
+                <SelectItem className="capitalize" value={projectScope} key={projectScope}>
+                  {projectScope.replace("-", " ")}
+                </SelectItem>
+              ))}
+            </Select>
+          </FormControl>
+        )}
+      />
+
+      {scope === GitlabSyncScope.Group && (
+        <Controller
+          name="destinationConfig.groupId"
+          control={control}
+          render={({ field: { value, onChange }, fieldState: { error } }) => (
+            <FormControl
+              isError={Boolean(error)}
+              errorText={error?.message}
+              label="Group"
+              helperText={
+                <Tooltip
+                  className="max-w-md"
+                  content="Ensure the group exists in the connection's GitLab instance URL."
+                >
+                  <div>
+                    <span>Don&#39;t see the group you&#39;re looking for?</span>{" "}
+                    <FontAwesomeIcon icon={faCircleInfo} className="text-mineshaft-400" />
+                  </div>
+                </Tooltip>
+              }
+            >
+              <FilterableSelect
+                menuPlacement="top"
+                isLoading={isGroupsLoading && Boolean(connectionId)}
+                isDisabled={!connectionId}
+                value={groups?.find((group) => group.id === value) ?? null}
+                onChange={(option) => {
+                  onChange((option as SingleValue<TGitLabGroup>)?.id ?? "");
+                }}
+                options={groups}
+                placeholder="Select a group..."
+                getOptionLabel={(option) => option.name}
+                getOptionValue={(option) => option.id}
+              />
+            </FormControl>
+          )}
+        />
+      )}
+
+      <Controller
+        name="destinationConfig.projectId"
+        control={control}
+        render={({ field: { value, onChange }, fieldState: { error } }) => (
+          <FormControl
+            isError={Boolean(error)}
+            errorText={error?.message}
+            label="GitLab Project"
+            helperText={
+              <Tooltip
+                className="max-w-md"
+                content="Ensure the project exists in the connection's GitLab instance URL."
+              >
+                <div>
+                  <span>Don&#39;t see the project you&#39;re looking for?</span>{" "}
+                  <FontAwesomeIcon icon={faCircleInfo} className="text-mineshaft-400" />
+                </div>
+              </Tooltip>
+            }
+          >
+            <FilterableSelect
+              menuPlacement="top"
+              isLoading={isProjectsLoading && Boolean(connectionId)}
+              isDisabled={!connectionId || (scope === GitlabSyncScope.Group && !selectedGroup)}
+              value={projects?.find((project) => project.id === value) ?? null}
+              onChange={(option) => {
+                onChange((option as SingleValue<TGitLabProject>)?.id ?? "");
+                setValue(
+                  "destinationConfig.projectName",
+                  (option as SingleValue<TGitLabProject>)?.name ?? ""
+                );
+              }}
+              options={projects}
+              placeholder="Select a project..."
+              getOptionLabel={(option) => option.name}
+              getOptionValue={(option) => option.id}
+            />
+          </FormControl>
+        )}
+      />
+
+      <Controller
+        control={control}
+        defaultValue=""
+        name="destinationConfig.targetEnvironment"
+        render={({ field, fieldState: { error } }) => (
+          <FormControl
+            label="GitLab Environment Scope (Optional)"
+            isError={Boolean(error)}
+            errorText={error?.message}
+          >
+            <Input {...field} placeholder="*" />
+          </FormControl>
+        )}
+      />
+
+      {/* Secret Protection Settings Section */}
+      <div className="mt-6">
+        <div className="space-y-4">
+          <Controller
+            control={control}
+            name="destinationConfig.shouldProtectSecrets"
+            render={({ field: { onChange, value } }) => (
+              <SecretProtectionOption
+                id="should-protect-secrets"
+                title="Mark Infisical secrets in GitLab as 'Protected' secrets"
+                isEnabled={value || false}
+                onChange={onChange}
+              />
+            )}
+          />
+
+          <Controller
+            control={control}
+            name="destinationConfig.shouldMaskSecrets"
+            render={({ field: { onChange, value } }) => (
+              <SecretProtectionOption
+                id="should-mask-secrets"
+                title="Mark Infisical secrets in GitLab as 'Masked' secrets"
+                tooltip="GitLab has limitations for masked variables: secrets must be at least 8 characters long and not match existing CI/CD variable names. Secrets not meeting these criteria won't be masked."
+                isEnabled={value || false}
+                onChange={(checked) => {
+                  onChange(checked);
+                  if (!checked) {
+                    setValue("destinationConfig.shouldHideSecrets", false);
+                  }
+                }}
+              />
+            )}
+          />
+
+          <Controller
+            control={control}
+            name="destinationConfig.shouldHideSecrets"
+            render={({ field: { onChange, value } }) => (
+              <div className='"max-h-32 opacity-100" transition-all duration-300'>
+                <SecretProtectionOption
+                  id="should-hide-secrets"
+                  title="Mark Infisical secrets in GitLab as 'Protected' secrets"
+                  tooltip="Secrets can only be marked as hidden if they are also masked."
+                  isEnabled={value || false}
+                  onChange={onChange}
+                  isDisabled={!shouldMaskSecrets}
+                />
+              </div>
+            )}
+          />
+        </div>
+      </div>
+    </div>
+  );
+};

frontend/src/components/secret-syncs/forms/SecretSyncDestinationFields/SecretSyncDestinationFields.tsx

@@ -14,6 +14,7 @@ import { DatabricksSyncFields } from "./DatabricksSyncFields";
 import { FlyioSyncFields } from "./FlyioSyncFields";
 import { GcpSyncFields } from "./GcpSyncFields";
 import { GitHubSyncFields } from "./GitHubSyncFields";
+import { GitLabSyncFields } from "./GitLabSyncFields";
 import { HCVaultSyncFields } from "./HCVaultSyncFields";
 import { HerokuSyncFields } from "./HerokuSyncFields";
 import { HumanitecSyncFields } from "./HumanitecSyncFields";
@@ -70,6 +71,8 @@ export const SecretSyncDestinationFields = () => {
       return <RenderSyncFields />;
     case SecretSync.Flyio:
       return <FlyioSyncFields />;
+    case SecretSync.Gitlab:
+      return <GitLabSyncFields />;
     default:
       throw new Error(`Unhandled Destination Config Field: ${destination}`);
   }

frontend/src/components/secret-syncs/forms/SecretSyncOptionsFields/SecretSyncOptionsFields.tsx

@@ -55,6 +55,7 @@ export const SecretSyncOptionsFields = ({ hideInitialSync }: Props) => {
     case SecretSync.Heroku:
     case SecretSync.Render:
     case SecretSync.Flyio:
+    case SecretSync.Gitlab:
       AdditionalSyncOptionsFieldsComponent = null;
       break;
     default:

frontend/src/components/secret-syncs/forms/SecretSyncReviewFields/GitlabSyncReviewFields.tsx

@@ -0,0 +1,32 @@
+import { useFormContext } from "react-hook-form";
+
+import { GenericFieldLabel } from "@app/components/secret-syncs";
+import { TSecretSyncForm } from "@app/components/secret-syncs/forms/schemas";
+import { SecretSync } from "@app/hooks/api/secretSyncs";
+
+export const GitLabSyncReviewFields = () => {
+  const { watch } = useFormContext<TSecretSyncForm & { destination: SecretSync.Gitlab }>();
+  const projectId = watch("destinationConfig.projectId");
+  const targetEnvironment = watch("destinationConfig.targetEnvironment");
+  const groupId = watch("destinationConfig.groupId");
+  const scope = watch("destinationConfig.scope");
+  const shouldProtectSecrets = watch("destinationConfig.shouldProtectSecrets");
+  const shouldMaskSecrets = watch("destinationConfig.shouldMaskSecrets");
+  const shouldHideSecrets = watch("destinationConfig.shouldHideSecrets");
+
+  return (
+    <>
+      <GenericFieldLabel label="Scope">{scope}</GenericFieldLabel>
+      <GenericFieldLabel label="Project ID">{projectId}</GenericFieldLabel>
+      {groupId && <GenericFieldLabel label="Group ID">{groupId}</GenericFieldLabel>}
+      {targetEnvironment && (
+        <GenericFieldLabel label="Environment">{targetEnvironment}</GenericFieldLabel>
+      )}
+      <GenericFieldLabel label="Protect Secrets">
+        {shouldProtectSecrets ? "Yes" : "No"}
+      </GenericFieldLabel>
+      <GenericFieldLabel label="Mask Secrets">{shouldMaskSecrets ? "Yes" : "No"}</GenericFieldLabel>
+      <GenericFieldLabel label="Hide Secrets">{shouldHideSecrets ? "Yes" : "No"}</GenericFieldLabel>
+    </>
+  );
+};

frontend/src/components/secret-syncs/forms/SecretSyncReviewFields/SecretSyncReviewFields.tsx

@@ -23,6 +23,7 @@ import { DatabricksSyncReviewFields } from "./DatabricksSyncReviewFields";
 import { FlyioSyncReviewFields } from "./FlyioSyncReviewFields";
 import { GcpSyncReviewFields } from "./GcpSyncReviewFields";
 import { GitHubSyncReviewFields } from "./GitHubSyncReviewFields";
+import { GitLabSyncReviewFields } from "./GitLabSyncReviewFields";
 import { HCVaultSyncReviewFields } from "./HCVaultSyncReviewFields";
 import { HerokuSyncReviewFields } from "./HerokuSyncReviewFields";
 import { HumanitecSyncReviewFields } from "./HumanitecSyncReviewFields";
@@ -116,6 +117,9 @@ export const SecretSyncReviewFields = () => {
     case SecretSync.Flyio:
       DestinationFieldsComponent = <FlyioSyncReviewFields />;
       break;
+    case SecretSync.Gitlab:
+      DestinationFieldsComponent = <GitLabSyncReviewFields />;
+      break;
     default:
       throw new Error(`Unhandled Destination Review Fields: ${destination}`);
   }

frontend/src/components/secret-syncs/forms/schemas/gitlab-sync-destination-schema.ts

@@ -0,0 +1,32 @@
+import { z } from "zod";
+
+import { BaseSecretSyncSchema } from "@app/components/secret-syncs/forms/schemas/base-secret-sync-schema";
+import { SecretSync } from "@app/hooks/api/secretSyncs";
+import { GitlabSyncScope } from "@app/hooks/api/secretSyncs/types/gitlab-sync";
+
+export const GitlabSyncDestinationSchema = BaseSecretSyncSchema().merge(
+  z.object({
+    destination: z.literal(SecretSync.Gitlab),
+    destinationConfig: z.discriminatedUnion("scope", [
+      z.object({
+        scope: z.literal(GitlabSyncScope.Individual),
+        projectId: z.string().trim().min(1, "Project ID required"),
+        projectName: z.string().trim().min(1, "Project name required"),
+        targetEnvironment: z.string().optional(),
+        shouldProtectSecrets: z.boolean().optional().default(false),
+        shouldMaskSecrets: z.boolean().optional().default(false),
+        shouldHideSecrets: z.boolean().optional().default(false)
+      }),
+      z.object({
+        scope: z.literal(GitlabSyncScope.Group),
+        projectId: z.string().trim().min(1, "Project ID required"),
+        projectName: z.string().trim().min(1, "Project name required"),
+        targetEnvironment: z.string().optional(),
+        groupId: z.string().trim().min(1, "Group ID required"),
+        shouldProtectSecrets: z.boolean().optional().default(false),
+        shouldMaskSecrets: z.boolean().optional().default(false),
+        shouldHideSecrets: z.boolean().optional().default(false)
+      })
+    ])
+  })
+);

frontend/src/components/secret-syncs/forms/schemas/secret-sync-schema.ts

@@ -11,6 +11,7 @@ import { DatabricksSyncDestinationSchema } from "./databricks-sync-destination-s
 import { FlyioSyncDestinationSchema } from "./flyio-sync-destination-schema";
 import { GcpSyncDestinationSchema } from "./gcp-sync-destination-schema";
 import { GitHubSyncDestinationSchema } from "./github-sync-destination-schema";
+import { GitlabSyncDestinationSchema } from "./gitlab-sync-destination-schema";
 import { HCVaultSyncDestinationSchema } from "./hc-vault-sync-destination-schema";
 import { HerokuSyncDestinationSchema } from "./heroku-sync-destination-schema";
 import { HumanitecSyncDestinationSchema } from "./humanitec-sync-destination-schema";
@@ -41,7 +42,8 @@ const SecretSyncUnionSchema = z.discriminatedUnion("destination", [
   OnePassSyncDestinationSchema,
   HerokuSyncDestinationSchema,
   RenderSyncDestinationSchema,
-  FlyioSyncDestinationSchema
+  FlyioSyncDestinationSchema,
+  GitlabSyncDestinationSchema
 ]);
 
 export const SecretSyncFormSchema = SecretSyncUnionSchema;

frontend/src/helpers/appConnections.ts

@@ -23,6 +23,7 @@ import {
   GcpConnectionMethod,
   GitHubConnectionMethod,
   GitHubRadarConnectionMethod,
+  GitlabConnectionMethod,
   HCVaultConnectionMethod,
   HumanitecConnectionMethod,
   LdapConnectionMethod,
@@ -84,7 +85,8 @@ export const APP_CONNECTION_MAP: Record<
   [AppConnection.OnePass]: { name: "1Password", image: "1Password.png" },
   [AppConnection.Heroku]: { name: "Heroku", image: "Heroku.png" },
   [AppConnection.Render]: { name: "Render", image: "Render.png" },
-  [AppConnection.Flyio]: { name: "Fly.io", image: "Flyio.svg" }
+  [AppConnection.Flyio]: { name: "Fly.io", image: "Flyio.svg" },
+  [AppConnection.Gitlab]: { name: "Gitlab", image: "GitLab.png" }
 };
 
 export const getAppConnectionMethodDetails = (method: TAppConnection["method"]) => {
@@ -98,6 +100,7 @@ export const getAppConnectionMethodDetails = (method: TAppConnection["method"])
     case AzureDevOpsConnectionMethod.OAuth:
     case GitHubConnectionMethod.OAuth:
     case HerokuConnectionMethod.OAuth:
+    case GitlabConnectionMethod.OAuth:
       return { name: "OAuth", icon: faPassport };
     case AwsConnectionMethod.AccessKey:
     case OCIConnectionMethod.AccessKey:

frontend/src/helpers/secretSyncs.ts

@@ -73,6 +73,10 @@ export const SECRET_SYNC_MAP: Record<SecretSync, { name: string; image: string }
   [SecretSync.Flyio]: {
     name: "Fly.io",
     image: "Flyio.svg"
+  },
+  [SecretSync.Gitlab]: {
+    name: "Gitlab",
+    image: "GitLab.png"
   }
 };
 
@@ -96,7 +100,8 @@ export const SECRET_SYNC_CONNECTION_MAP: Record<SecretSync, AppConnection> = {
   [SecretSync.OnePass]: AppConnection.OnePass,
   [SecretSync.Heroku]: AppConnection.Heroku,
   [SecretSync.Render]: AppConnection.Render,
-  [SecretSync.Flyio]: AppConnection.Flyio
+  [SecretSync.Flyio]: AppConnection.Flyio,
+  [SecretSync.Gitlab]: AppConnection.Gitlab
 };
 
 export const SECRET_SYNC_INITIAL_SYNC_BEHAVIOR_MAP: Record<

frontend/src/hooks/api/appConnections/enums.ts

@@ -25,5 +25,6 @@ export enum AppConnection {
   OnePass = "1password",
   Heroku = "heroku",
   Render = "render",
-  Flyio = "flyio"
+  Flyio = "flyio",
+  Gitlab = "gitlab"
 }

frontend/src/hooks/api/appConnections/gitlab/index.ts

@@ -0,0 +1,2 @@
+export * from "./queries";
+export * from "./types";

frontend/src/hooks/api/appConnections/gitlab/queries.tsx

@@ -0,0 +1,65 @@
+import { useQuery, UseQueryOptions } from "@tanstack/react-query";
+
+import { apiRequest } from "@app/config/request";
+
+import { appConnectionKeys } from "../queries";
+import { TGitLabGroup, TGitLabProject } from "./types";
+
+const gitlabConnectionKeys = {
+  all: [...appConnectionKeys.all, "gitlab"] as const,
+  listProjects: (connectionId: string, group?: string) =>
+    [...gitlabConnectionKeys.all, "projects", connectionId, group] as const,
+  listGroups: (connectionId: string) =>
+    [...gitlabConnectionKeys.all, "groups", connectionId] as const
+};
+
+export const useGitlabConnectionListProjects = (
+  connectionId: string,
+  group?: string,
+  options?: Omit<
+    UseQueryOptions<
+      TGitLabProject[],
+      unknown,
+      TGitLabProject[],
+      ReturnType<typeof gitlabConnectionKeys.listProjects>
+    >,
+    "queryKey" | "queryFn"
+  >
+) => {
+  return useQuery({
+    queryKey: gitlabConnectionKeys.listProjects(connectionId, group),
+    queryFn: async () => {
+      const { data } = await apiRequest.get<TGitLabProject[]>(
+        `/api/v1/app-connections/gitlab/${connectionId}/projects${group ? `?group=${group}` : ""}`
+      );
+
+      return data;
+    },
+    ...options
+  });
+};
+
+export const useGitlabConnectionListGroups = (
+  connectionId: string,
+  options?: Omit<
+    UseQueryOptions<
+      TGitLabGroup[],
+      unknown,
+      TGitLabGroup[],
+      ReturnType<typeof gitlabConnectionKeys.listGroups>
+    >,
+    "queryKey" | "queryFn"
+  >
+) => {
+  return useQuery({
+    queryKey: gitlabConnectionKeys.listGroups(connectionId),
+    queryFn: async () => {
+      const { data } = await apiRequest.get<TGitLabGroup[]>(
+        `/api/v1/app-connections/gitlab/${connectionId}/groups`
+      );
+
+      return data;
+    },
+    ...options
+  });
+};

frontend/src/hooks/api/appConnections/gitlab/types.ts

@@ -0,0 +1,9 @@
+export type TGitLabProject = {
+  id: string;
+  name: string;
+};
+
+export type TGitLabGroup = {
+  id: string;
+  name: string;
+};

frontend/src/hooks/api/appConnections/types/app-options.ts

@@ -123,6 +123,11 @@ export type TFlyioConnectionOption = TAppConnectionOptionBase & {
   app: AppConnection.Flyio;
 };
 
+export type TGitlabConnectionOption = TAppConnectionOptionBase & {
+  app: AppConnection.Gitlab;
+  oauthClientId?: string;
+};
+
 export type TAppConnectionOption =
   | TAwsConnectionOption
   | TGitHubConnectionOption
@@ -148,7 +153,8 @@ export type TAppConnectionOption =
   | TOnePassConnectionOption
   | THerokuConnectionOption
   | TRenderConnectionOption
-  | TFlyioConnectionOption;
+  | TFlyioConnectionOption
+  | TGitlabConnectionOption;
 
 export type TAppConnectionOptionMap = {
   [AppConnection.AWS]: TAwsConnectionOption;
@@ -178,4 +184,5 @@ export type TAppConnectionOptionMap = {
   [AppConnection.Heroku]: THerokuConnectionOption;
   [AppConnection.Render]: TRenderConnectionOption;
   [AppConnection.Flyio]: TFlyioConnectionOption;
+  [AppConnection.Gitlab]: TGitlabConnectionOption;
 };

frontend/src/hooks/api/appConnections/types/gitlab-connection.ts

@@ -0,0 +1,24 @@
+import { AppConnection } from "@app/hooks/api/appConnections/enums";
+import { TRootAppConnection } from "@app/hooks/api/appConnections/types/root-connection";
+
+export enum GitlabConnectionMethod {
+  AccessToken = "access-token",
+  OAuth = "oauth"
+}
+
+export type TGitlabConnection = TRootAppConnection & { app: AppConnection.Gitlab } & (
+    | {
+        method: GitlabConnectionMethod.AccessToken;
+        credentials: {
+          instanceUrl?: string;
+          accessToken: string;
+        };
+      }
+    | {
+        method: GitlabConnectionMethod.OAuth;
+        credentials: {
+          code: string;
+          instanceUrl?: string;
+        };
+      }
+  );

frontend/src/hooks/api/appConnections/types/index.ts

@@ -13,6 +13,7 @@ import { TFlyioConnection } from "./flyio-connection";
 import { TGcpConnection } from "./gcp-connection";
 import { TGitHubConnection } from "./github-connection";
 import { TGitHubRadarConnection } from "./github-radar-connection";
+import { TGitlabConnection } from "./gitlab-connection";
 import { THCVaultConnection } from "./hc-vault-connection";
 import { THerokuConnection } from "./heroku-connection";
 import { THumanitecConnection } from "./humanitec-connection";
@@ -41,6 +42,7 @@ export * from "./flyio-connection";
 export * from "./gcp-connection";
 export * from "./github-connection";
 export * from "./github-radar-connection";
+export * from "./gitlab-connection";
 export * from "./hc-vault-connection";
 export * from "./heroku-connection";
 export * from "./humanitec-connection";
@@ -83,7 +85,8 @@ export type TAppConnection =
   | TOnePassConnection
   | THerokuConnection
   | TRenderConnection
-  | TFlyioConnection;
+  | TFlyioConnection
+  | TGitlabConnection;
 
 export type TAvailableAppConnection = Pick<TAppConnection, "name" | "id">;
 
@@ -138,4 +141,5 @@ export type TAppConnectionMap = {
   [AppConnection.Heroku]: THerokuConnection;
   [AppConnection.Render]: TRenderConnection;
   [AppConnection.Flyio]: TFlyioConnection;
+  [AppConnection.Gitlab]: TGitlabConnection;
 };

frontend/src/hooks/api/secretSyncs/enums.ts

@@ -18,7 +18,8 @@ export enum SecretSync {
   OnePass = "1password",
   Heroku = "heroku",
   Render = "render",
-  Flyio = "flyio"
+  Flyio = "flyio",
+  Gitlab = "gitlab"
 }
 
 export enum SecretSyncStatus {

frontend/src/hooks/api/secretSyncs/types/gitlab-sync.ts

@@ -0,0 +1,37 @@
+import { AppConnection } from "@app/hooks/api/appConnections/enums";
+import { SecretSync } from "@app/hooks/api/secretSyncs";
+import { TRootSecretSync } from "@app/hooks/api/secretSyncs/types/root-sync";
+
+export enum GitlabSyncScope {
+  Individual = "individual",
+  Group = "group"
+}
+
+export type TGitlabSync = TRootSecretSync & {
+  destination: SecretSync.Gitlab;
+  destinationConfig:
+    | {
+        scope: GitlabSyncScope.Individual;
+        projectId: string;
+        projectName: string;
+        targetEnvironment?: string;
+        shouldProtectSecrets?: boolean;
+        shouldMaskSecrets?: boolean;
+        shouldHideSecrets?: boolean;
+      }
+    | {
+        scope: GitlabSyncScope.Group;
+        groupId: string;
+        projectId: string;
+        projectName: string;
+        targetEnvironment?: string;
+        shouldProtectSecrets?: boolean;
+        shouldMaskSecrets?: boolean;
+        shouldHideSecrets?: boolean;
+      };
+  connection: {
+    app: AppConnection.Gitlab;
+    name: string;
+    id: string;
+  };
+};

frontend/src/hooks/api/secretSyncs/types/index.ts

@@ -13,6 +13,7 @@ import { TDatabricksSync } from "./databricks-sync";
 import { TFlyioSync } from "./flyio-sync";
 import { TGcpSync } from "./gcp-sync";
 import { TGitHubSync } from "./github-sync";
+import { TGitlabSync } from "./gitlab-sync";
 import { THCVaultSync } from "./hc-vault-sync";
 import { THerokuSync } from "./heroku-sync";
 import { THumanitecSync } from "./humanitec-sync";
@@ -49,7 +50,8 @@ export type TSecretSync =
   | TOnePassSync
   | THerokuSync
   | TRenderSync
-  | TFlyioSync;
+  | TFlyioSync
+  | TGitlabSync;
 
 export type TListSecretSyncs = { secretSyncs: TSecretSync[] };
 

frontend/src/pages/organization/AppConnections/AppConnectionsPage/components/AppConnectionForm/AppConnectionForm.tsx

@@ -22,6 +22,7 @@ import { FlyioConnectionForm } from "./FlyioConnectionForm";
 import { GcpConnectionForm } from "./GcpConnectionForm";
 import { GitHubConnectionForm } from "./GitHubConnectionForm";
 import { GitHubRadarConnectionForm } from "./GitHubRadarConnectionForm";
+import { GitLabConnectionForm } from "./GitLabConnectionForm";
 import { HCVaultConnectionForm } from "./HCVaultConnectionForm";
 import { HerokuConnectionForm } from "./HerokuAppConnectionForm";
 import { HumanitecConnectionForm } from "./HumanitecConnectionForm";
@@ -128,6 +129,8 @@ const CreateForm = ({ app, onComplete }: CreateFormProps) => {
       return <RenderConnectionForm onSubmit={onSubmit} />;
     case AppConnection.Flyio:
       return <FlyioConnectionForm onSubmit={onSubmit} />;
+    case AppConnection.Gitlab:
+      return <GitLabConnectionForm onSubmit={onSubmit} />;
     default:
       throw new Error(`Unhandled App ${app}`);
   }
@@ -218,6 +221,8 @@ const UpdateForm = ({ appConnection, onComplete }: UpdateFormProps) => {
       return <RenderConnectionForm onSubmit={onSubmit} appConnection={appConnection} />;
     case AppConnection.Flyio:
       return <FlyioConnectionForm onSubmit={onSubmit} appConnection={appConnection} />;
+    case AppConnection.Gitlab:
+      return <GitLabConnectionForm onSubmit={onSubmit} appConnection={appConnection} />;
     default:
       throw new Error(`Unhandled App ${(appConnection as TAppConnection).app}`);
   }

frontend/src/pages/organization/AppConnections/AppConnectionsPage/components/AppConnectionForm/GitlabConnectionForm.tsx

@@ -0,0 +1,297 @@
+/* eslint-disable no-case-declarations */
+/* eslint-disable no-nested-ternary */
+import crypto from "crypto";
+
+import { useState } from "react";
+import { Controller, FormProvider, useForm } from "react-hook-form";
+import { zodResolver } from "@hookform/resolvers/zod";
+import { z } from "zod";
+
+import {
+  Button,
+  FormControl,
+  Input,
+  ModalClose,
+  SecretInput,
+  Select,
+  SelectItem
+} from "@app/components/v2";
+import { APP_CONNECTION_MAP, getAppConnectionMethodDetails } from "@app/helpers/appConnections";
+import { isInfisicalCloud } from "@app/helpers/platform";
+import { useGetAppConnectionOption } from "@app/hooks/api/appConnections";
+import { AppConnection } from "@app/hooks/api/appConnections/enums";
+import {
+  GitlabConnectionMethod,
+  TGitlabConnection
+} from "@app/hooks/api/appConnections/types/gitlab-connection";
+
+import {
+  genericAppConnectionFieldsSchema,
+  GenericAppConnectionsFields
+} from "./GenericAppConnectionFields";
+
+type Props = {
+  appConnection?: TGitlabConnection;
+  onSubmit: (formData: FormData) => Promise<void>;
+};
+
+const formSchema = z.discriminatedUnion("method", [
+  genericAppConnectionFieldsSchema.extend({
+    app: z.literal(AppConnection.Gitlab),
+    method: z.literal(GitlabConnectionMethod.AccessToken),
+    credentials: z.object({
+      accessToken: z.string().min(1, "Access token is required"),
+      instanceUrl: z
+        .string()
+        .trim()
+        .transform((value) => value || undefined)
+        .refine((value) => (!value ? true : z.string().url().safeParse(value).success), {
+          message: "Invalid instance URL"
+        })
+        .optional()
+    })
+  }),
+  genericAppConnectionFieldsSchema.extend({
+    app: z.literal(AppConnection.Gitlab),
+    method: z.literal(GitlabConnectionMethod.OAuth),
+    credentials: z.object({
+      code: z.string().min(1, "Code is required"),
+      instanceUrl: z
+        .string()
+        .trim()
+        .transform((value) => value || undefined)
+        .refine((value) => (!value ? true : z.string().url().safeParse(value).success), {
+          message: "Invalid instance URL"
+        })
+        .optional()
+    })
+  })
+]);
+
+type FormData = z.infer<typeof formSchema>;
+
+export const GitLabConnectionForm = ({ appConnection, onSubmit: formSubmit }: Props) => {
+  const isUpdate = Boolean(appConnection);
+  const [isRedirecting, setIsRedirecting] = useState(false);
+
+  const {
+    option: { oauthClientId },
+    isLoading
+  } = useGetAppConnectionOption(AppConnection.Gitlab);
+
+  const form = useForm<FormData>({
+    resolver: zodResolver(formSchema),
+    defaultValues:
+      appConnection?.method === GitlabConnectionMethod.OAuth
+        ? { ...appConnection, credentials: { code: "custom" } }
+        : (appConnection ??
+          ({
+            app: AppConnection.Gitlab,
+            method: GitlabConnectionMethod.AccessToken,
+            credentials: {
+              accessToken: "",
+              instanceUrl: ""
+            }
+          } as FormData))
+  });
+
+  const {
+    handleSubmit,
+    control,
+    watch,
+    setValue,
+    formState: { isSubmitting, isDirty }
+  } = form;
+
+  const selectedMethod = watch("method");
+  const gitLabURL = watch("credentials.instanceUrl");
+
+  const onSubmit = async (formData: FormData) => {
+    try {
+      switch (formData.method) {
+        case GitlabConnectionMethod.AccessToken:
+          await formSubmit(formData);
+          break;
+
+        case GitlabConnectionMethod.OAuth:
+          if (!oauthClientId) {
+            return;
+          }
+          setIsRedirecting(true);
+
+          // Generate CSRF token
+          const state = crypto.randomBytes(16).toString("hex");
+
+          // Store state and form data for callback
+          localStorage.setItem("latestCSRFToken", state);
+          localStorage.setItem(
+            "gitlabConnectionFormData",
+            JSON.stringify({
+              ...formData,
+              connectionId: appConnection?.id,
+              isUpdate
+            })
+          );
+
+          // Redirect to Gitlab OAuth
+          const baseURL =
+            gitLabURL && (gitLabURL as string)?.trim() !== ""
+              ? (gitLabURL as string)?.trim()
+              : "https://gitlab.com";
+          const oauthUrl = new URL(`${baseURL}/oauth/authorize`);
+          oauthUrl.searchParams.set("client_id", oauthClientId);
+          oauthUrl.searchParams.set(
+            "redirect_uri",
+            `${window.location.origin}/integrations/gitlab/oauth2/callback`
+          );
+          oauthUrl.searchParams.set("response_type", "code");
+          oauthUrl.searchParams.set("state", state);
+
+          window.location.assign(oauthUrl.toString());
+          break;
+
+        default:
+          throw new Error("Unhandled Gitlab Connection method");
+      }
+    } catch (error) {
+      console.error("Error handling form submission:", error);
+      setIsRedirecting(false);
+    }
+  };
+
+  let isMissingConfig: boolean;
+
+  switch (selectedMethod) {
+    case GitlabConnectionMethod.OAuth:
+      isMissingConfig = !oauthClientId;
+      break;
+    case GitlabConnectionMethod.AccessToken:
+      isMissingConfig = false;
+      break;
+    default:
+      throw new Error(`Unhandled Gitlab Connection method: ${selectedMethod}`);
+  }
+
+  const methodDetails = getAppConnectionMethodDetails(selectedMethod);
+
+  return (
+    <FormProvider {...form}>
+      <form onSubmit={handleSubmit(onSubmit)}>
+        {!isUpdate && <GenericAppConnectionsFields />}
+
+        <Controller
+          name="credentials.instanceUrl"
+          control={control}
+          render={({ field: { value, onChange }, fieldState: { error } }) => (
+            <FormControl
+              label="Self-hosted URL (optional)"
+              errorText={error?.message}
+              isError={Boolean(error?.message)}
+              tooltipText="Will default to GitLab Cloud if not specified."
+            >
+              <Input
+                value={value}
+                onChange={(e) => onChange(e.target.value)}
+                placeholder="https://gitlab.com"
+              />
+            </FormControl>
+          )}
+        />
+
+        <Controller
+          name="method"
+          control={control}
+          render={({ field: { value, onChange }, fieldState: { error } }) => (
+            <FormControl
+              tooltipText={`The method you would like to use to connect with ${
+                APP_CONNECTION_MAP[AppConnection.Gitlab].name
+              }. This field cannot be changed after creation.`}
+              errorText={
+                !isLoading && isMissingConfig && selectedMethod === GitlabConnectionMethod.OAuth
+                  ? `Environment variables have not been configured. ${
+                      isInfisicalCloud()
+                        ? "Please contact Infisical."
+                        : `See Docs to configure Gitlab ${methodDetails.name} Connections.`
+                    }`
+                  : error?.message
+              }
+              isError={Boolean(error?.message) || isMissingConfig}
+              label="Method"
+            >
+              <Select
+                isDisabled={isUpdate}
+                value={value}
+                onValueChange={(val) => {
+                  onChange(val);
+                  if (val === GitlabConnectionMethod.OAuth) {
+                    setValue("credentials.code", "custom");
+                  }
+                }}
+                className="w-full border border-mineshaft-500"
+                position="popper"
+                dropdownContainerClassName="max-w-none"
+              >
+                {Object.values(GitlabConnectionMethod).map((method) => {
+                  return (
+                    <SelectItem value={method} key={method}>
+                      {getAppConnectionMethodDetails(method).name}{" "}
+                      {method === GitlabConnectionMethod.AccessToken ? " (Recommended)" : ""}
+                    </SelectItem>
+                  );
+                })}
+              </Select>
+            </FormControl>
+          )}
+        />
+
+        {selectedMethod === GitlabConnectionMethod.AccessToken && (
+          <Controller
+            name="credentials.accessToken"
+            control={control}
+            render={({ field: { value, onChange }, fieldState: { error } }) => (
+              <FormControl
+                label="Access Token"
+                errorText={error?.message}
+                isError={Boolean(error?.message)}
+                tooltipText="Your Gitlab Access Token"
+              >
+                <SecretInput
+                  containerClassName="text-gray-400 group-focus-within:!border-primary-400/50 border border-mineshaft-500 bg-mineshaft-900 px-2.5 py-1.5"
+                  value={value}
+                  onChange={(e) => onChange(e.target.value)}
+                />
+              </FormControl>
+            )}
+          />
+        )}
+
+        <div className="mt-8 flex items-center">
+          <Button
+            className="mr-4"
+            size="sm"
+            type="submit"
+            colorSchema="secondary"
+            isLoading={isSubmitting || isRedirecting}
+            isDisabled={
+              isSubmitting ||
+              (!isUpdate && !isDirty) ||
+              (isMissingConfig && selectedMethod === GitlabConnectionMethod.OAuth) ||
+              isRedirecting
+            }
+          >
+            {isRedirecting && selectedMethod === GitlabConnectionMethod.OAuth
+              ? "Redirecting to Gitlab..."
+              : isUpdate
+                ? "Reconnect to Gitlab"
+                : "Connect to Gitlab"}
+          </Button>
+          <ModalClose asChild>
+            <Button colorSchema="secondary" variant="plain">
+              Cancel
+            </Button>
+          </ModalClose>
+        </div>
+      </form>
+    </FormProvider>
+  );
+};

frontend/src/pages/secret-manager/IntegrationsListPage/components/SecretSyncsTab/SecretSyncTable/SecretSyncDestinationCol/GitlabSyncDestinationCol.tsx

@@ -0,0 +1,14 @@
+import { TGitlabSync } from "@app/hooks/api/secretSyncs/types/gitlab-sync";
+
+import { getSecretSyncDestinationColValues } from "../helpers";
+import { SecretSyncTableCell } from "../SecretSyncTableCell";
+
+type Props = {
+  secretSync: TGitlabSync;
+};
+
+export const GitLabSyncDestinationCol = ({ secretSync }: Props) => {
+  const { primaryText, secondaryText } = getSecretSyncDestinationColValues(secretSync);
+
+  return <SecretSyncTableCell primaryText={primaryText} secondaryText={secondaryText} />;
+};

frontend/src/pages/secret-manager/IntegrationsListPage/components/SecretSyncsTab/SecretSyncTable/SecretSyncDestinationCol/SecretSyncDestinationCol.tsx

@@ -11,6 +11,7 @@ import { DatabricksSyncDestinationCol } from "./DatabricksSyncDestinationCol";
 import { FlyioSyncDestinationCol } from "./FlyioSyncDestinationCol";
 import { GcpSyncDestinationCol } from "./GcpSyncDestinationCol";
 import { GitHubSyncDestinationCol } from "./GitHubSyncDestinationCol";
+import { GitLabSyncDestinationCol } from "./GitLabSyncDestinationCol";
 import { HCVaultSyncDestinationCol } from "./HCVaultSyncDestinationCol";
 import { HerokuSyncDestinationCol } from "./HerokuSyncDestinationCol";
 import { HumanitecSyncDestinationCol } from "./HumanitecSyncDestinationCol";
@@ -67,6 +68,8 @@ export const SecretSyncDestinationCol = ({ secretSync }: Props) => {
       return <RenderSyncDestinationCol secretSync={secretSync} />;
     case SecretSync.Flyio:
       return <FlyioSyncDestinationCol secretSync={secretSync} />;
+    case SecretSync.Gitlab:
+      return <GitLabSyncDestinationCol secretSync={secretSync} />;
     default:
       throw new Error(
         `Unhandled Secret Sync Destination Col: ${(secretSync as TSecretSync).destination}`

frontend/src/pages/secret-manager/IntegrationsListPage/components/SecretSyncsTab/SecretSyncTable/helpers/index.ts

@@ -128,6 +128,10 @@ export const getSecretSyncDestinationColValues = (secretSync: TSecretSync) => {
       primaryText = destinationConfig.appId;
       secondaryText = "App ID";
       break;
+    case SecretSync.Gitlab:
+      primaryText = destinationConfig.projectName;
+      secondaryText = destinationConfig.projectId;
+      break;
     default:
       throw new Error(`Unhandled Destination Col Values ${destination}`);
   }

frontend/src/pages/secret-manager/SecretSyncDetailsByIDPage/components/SecretSyncDestinationSection/GitlabSyncDestinationSection.tsx

@@ -0,0 +1,34 @@
+import { GenericFieldLabel } from "@app/components/secret-syncs";
+import { TGitlabSync } from "@app/hooks/api/secretSyncs/types/gitlab-sync";
+
+type Props = {
+  secretSync: TGitlabSync;
+};
+
+export const GitLabSyncDestinationSection = ({ secretSync }: Props) => {
+  const {
+    destinationConfig: {
+      projectName,
+      projectId,
+      targetEnvironment,
+      shouldProtectSecrets,
+      shouldMaskSecrets,
+      shouldHideSecrets
+    }
+  } = secretSync;
+
+  return (
+    <>
+      <GenericFieldLabel label="Project Name">{projectName}</GenericFieldLabel>
+      <GenericFieldLabel label="Project ID">{projectId}</GenericFieldLabel>
+      {targetEnvironment && (
+        <GenericFieldLabel label="Environment">{targetEnvironment}</GenericFieldLabel>
+      )}
+      <GenericFieldLabel label="Protect Secrets">
+        {shouldProtectSecrets ? "Yes" : "No"}
+      </GenericFieldLabel>
+      <GenericFieldLabel label="Mask Secrets">{shouldMaskSecrets ? "Yes" : "No"}</GenericFieldLabel>
+      <GenericFieldLabel label="Hide Secrets">{shouldHideSecrets ? "Yes" : "No"}</GenericFieldLabel>
+    </>
+  );
+};

frontend/src/pages/secret-manager/SecretSyncDetailsByIDPage/components/SecretSyncDestinationSection/SecretSyncDestinatonSection.tsx

@@ -22,6 +22,7 @@ import { DatabricksSyncDestinationSection } from "./DatabricksSyncDestinationSec
 import { FlyioSyncDestinationSection } from "./FlyioSyncDestinationSection";
 import { GcpSyncDestinationSection } from "./GcpSyncDestinationSection";
 import { GitHubSyncDestinationSection } from "./GitHubSyncDestinationSection";
+import { GitLabSyncDestinationSection } from "./GitLabSyncDestinationSection";
 import { HCVaultSyncDestinationSection } from "./HCVaultSyncDestinationSection";
 import { HerokuSyncDestinationSection } from "./HerokuSyncDestinationSection";
 import { HumanitecSyncDestinationSection } from "./HumanitecSyncDestinationSection";
@@ -106,6 +107,9 @@ export const SecretSyncDestinationSection = ({ secretSync, onEditDestination }:
     case SecretSync.Flyio:
       DestinationComponents = <FlyioSyncDestinationSection secretSync={secretSync} />;
       break;
+    case SecretSync.Gitlab:
+      DestinationComponents = <GitLabSyncDestinationSection secretSync={secretSync} />;
+      break;
     default:
       throw new Error(`Unhandled Destination Section components: ${destination}`);
   }

frontend/src/pages/secret-manager/SecretSyncDetailsByIDPage/components/SecretSyncOptionsSection/SecretSyncOptionsSection.tsx

@@ -58,6 +58,7 @@ export const SecretSyncOptionsSection = ({ secretSync, onEditOptions }: Props) =
     case SecretSync.Heroku:
     case SecretSync.Render:
     case SecretSync.Flyio:
+    case SecretSync.Gitlab:
       AdditionalSyncOptionsComponent = null;
       break;
     default:

frontend/src/pages/secret-manager/integrations/GitlabOauthCallbackPage/GitlabOauthCallbackPage.tsx

@@ -3,11 +3,13 @@ import { useNavigate, useSearch } from "@tanstack/react-router";
 
 import { ROUTE_PATHS } from "@app/const/routes";
 import { useWorkspace } from "@app/context";
-import { useAuthorizeIntegration } from "@app/hooks/api";
+import { useCreateAppConnection, useUpdateAppConnection } from "@app/hooks/api/appConnections";
+import { GitlabConnectionMethod } from "@app/hooks/api/appConnections/types/gitlab-connection";
 
 export const GitLabOAuthCallbackPage = () => {
   const navigate = useNavigate();
-  const { mutateAsync } = useAuthorizeIntegration();
+  const { mutateAsync: createAppConnection } = useCreateAppConnection();
+  const { mutateAsync: updateAppConnection } = useUpdateAppConnection();
 
   const { code, state } = useSearch({
     from: ROUTE_PATHS.SecretManager.Integratons.GitlabOauthCallbackPage.id
@@ -17,37 +19,83 @@ export const GitLabOAuthCallbackPage = () => {
   useEffect(() => {
     (async () => {
       try {
-        // validate state
-        const [csrfToken, url] = (state as string).split("|", 2);
+        // Validate CSRF state token
+        const [csrfToken] = (state as string).split("|", 2);
+        const storedState = localStorage.getItem("latestCSRFToken");
+        if (csrfToken !== storedState) {
+          console.error("CSRF token mismatch");
+          navigate({
+            to: "/organization/app-connections",
+            search: { error: "invalid_state" }
+          });
+          return;
+        }
 
-        if (csrfToken !== localStorage.getItem("latestCSRFToken")) return;
         localStorage.removeItem("latestCSRFToken");
 
-        const integrationAuth = await mutateAsync({
-          workspaceId: currentWorkspace.id,
-          code: code as string,
-          integration: "gitlab",
-          ...(url === ""
-            ? {}
-            : {
-                url
-              })
-        });
+        // Retrieve stored form dataAdd commentMore actions
+        const storedFormData = localStorage.getItem("gitlabConnectionFormData");
+        if (!storedFormData) {
+          console.error("No stored form data found");
+          navigate({
+            to: "/organization/app-connections",
+            search: { error: "missing_form_data" }
+          });
+          return;
+        }
+
+        const formData = JSON.parse(storedFormData);
+        localStorage.removeItem("gitlabConnectionFormData");
+
+        // Prepare app connection data with OAuth credentials
+        const connectionData = {
+          ...formData,
+          method: GitlabConnectionMethod.OAuth,
+          credentials: {
+            code: code as string
+          }
+        };
+
+        let appConnection;
+
+        // Create or update app connection
+        if (formData.isUpdate && formData.connectionId) {
+          appConnection = await updateAppConnection({
+            connectionId: formData.connectionId,
+            ...connectionData
+          });
+        } else {
+          appConnection = await createAppConnection({
+            workspaceId: currentWorkspace.id,
+            ...connectionData
+          });
+        }
+
+        // Navigate to success page or app connections list
 
         navigate({
-          to: "/secret-manager/$projectId/integrations/gitlab/create",
-          params: {
-            projectId: currentWorkspace.id
-          },
+          to: "/organization/app-connections",
           search: {
-            integrationAuthId: integrationAuth.id
+            success: formData.isUpdate ? "connection_updated" : "connection_created",
+            connectionId: appConnection.id
           }
         });
       } catch (err) {
-        console.error(err);
+        console.error("Error handling GitLab OAuth callback:", err);
+        navigate({
+          to: "/organization/app-connections",
+          search: { error: "connection_failed" }
+        });
       }
     })();
-  }, []);
+  }, [code, state, navigate, createAppConnection, updateAppConnection, currentWorkspace.id]);
 
-  return <div />;
+  return (
+    <div className="flex h-screen items-center justify-center">
+      <div className="text-center">
+        <div className="mx-auto mb-4 h-8 w-8 animate-spin rounded-full border-b-2 border-primary" />
+        <p className="text-gray-600">Connecting to GitLab...</p>
+      </div>
+    </div>
+  );
 };