Add Humanitec secret sync integration

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

@@ -1771,6 +1771,11 @@ export const SecretSyncs = {
     },
     DATABRICKS: {
       scope: "The Databricks secret scope that secrets should be synced to."
+    },
+    HUMANITEC: {
+      app: "The ID of the Humanitec app to sync secrets to.",
+      org: "The ID of the Humanitec org to sync secrets to.",
+      env: "The ID of the Humanitec environment to sync secrets to."
     }
   }
 };

backend/src/lib/config/env.ts

@@ -224,6 +224,9 @@ const envSchema = z
     DATADOG_SERVICE: zpStr(z.string().optional().default("infisical-core")),
     DATADOG_HOSTNAME: zpStr(z.string().optional()),
 
+    // humanitec
+    INF_APP_CONNECTION_HUMANITEC_ACCESS_KEY: zpStr(z.string().optional()),
+
     /* CORS ----------------------------------------------------------------------------- */
 
     CORS_ALLOWED_ORIGINS: zpStr(

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

@@ -18,6 +18,10 @@ import {
 } from "@app/services/app-connection/databricks";
 import { GcpConnectionListItemSchema, SanitizedGcpConnectionSchema } from "@app/services/app-connection/gcp";
 import { GitHubConnectionListItemSchema, SanitizedGitHubConnectionSchema } from "@app/services/app-connection/github";
+import {
+  HumanitecConnectionListItemSchema,
+  SanitizedHumanitecConnectionSchema
+} from "@app/services/app-connection/humanitec";
 import { AuthMode } from "@app/services/auth/auth-type";
 
 // can't use discriminated due to multiple schemas for certain apps
@@ -27,7 +31,8 @@ const SanitizedAppConnectionSchema = z.union([
   ...SanitizedGcpConnectionSchema.options,
   ...SanitizedAzureKeyVaultConnectionSchema.options,
   ...SanitizedAzureAppConfigurationConnectionSchema.options,
-  ...SanitizedDatabricksConnectionSchema.options
+  ...SanitizedDatabricksConnectionSchema.options,
+  ...SanitizedHumanitecConnectionSchema.options
 ]);
 
 const AppConnectionOptionsSchema = z.discriminatedUnion("app", [
@@ -36,7 +41,8 @@ const AppConnectionOptionsSchema = z.discriminatedUnion("app", [
   GcpConnectionListItemSchema,
   AzureKeyVaultConnectionListItemSchema,
   AzureAppConfigurationConnectionListItemSchema,
-  DatabricksConnectionListItemSchema
+  DatabricksConnectionListItemSchema,
+  HumanitecConnectionListItemSchema
 ]);
 
 export const registerAppConnectionRouter = async (server: FastifyZodProvider) => {

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

@@ -0,0 +1,69 @@
+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 {
+  CreateHumanitecConnectionSchema,
+  HumanitecOrgWithApps,
+  SanitizedHumanitecConnectionSchema,
+  UpdateHumanitecConnectionSchema
+} from "@app/services/app-connection/humanitec";
+import { AuthMode } from "@app/services/auth/auth-type";
+
+import { registerAppConnectionEndpoints } from "./app-connection-endpoints";
+
+export const registerHumanitecConnectionRouter = async (server: FastifyZodProvider) => {
+  registerAppConnectionEndpoints({
+    app: AppConnection.Humanitec,
+    server,
+    sanitizedResponseSchema: SanitizedHumanitecConnectionSchema,
+    createSchema: CreateHumanitecConnectionSchema,
+    updateSchema: UpdateHumanitecConnectionSchema
+  });
+
+  // The below endpoints are not exposed and for Infisical App use
+  server.route({
+    method: "GET",
+    url: `/:connectionId/organizations`,
+    config: {
+      rateLimit: readLimit
+    },
+    schema: {
+      params: z.object({
+        connectionId: z.string().uuid()
+      }),
+      response: {
+        200: z
+          .object({
+            id: z.string(),
+            name: z.string(),
+            apps: z
+              .object({
+                id: z.string(),
+                name: z.string(),
+                envs: z
+                  .object({
+                    id: z.string(),
+                    name: z.string()
+                  })
+                  .array()
+              })
+              .array()
+          })
+          .array()
+      }
+    },
+    onRequest: verifyAuth([AuthMode.JWT]),
+    handler: async (req) => {
+      const { connectionId } = req.params;
+
+      const organizations: HumanitecOrgWithApps[] = await server.services.appConnection.humanitec.listOrganizations(
+        connectionId,
+        req.permission
+      );
+
+      return organizations;
+    }
+  });
+};

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

@@ -6,6 +6,7 @@ import { registerAzureKeyVaultConnectionRouter } from "./azure-key-vault-connect
 import { registerDatabricksConnectionRouter } from "./databricks-connection-router";
 import { registerGcpConnectionRouter } from "./gcp-connection-router";
 import { registerGitHubConnectionRouter } from "./github-connection-router";
+import { registerHumanitecConnectionRouter } from "./humanitec-connection-router";
 
 export * from "./app-connection-router";
 
@@ -16,5 +17,6 @@ export const APP_CONNECTION_REGISTER_ROUTER_MAP: Record<AppConnection, (server:
     [AppConnection.GCP]: registerGcpConnectionRouter,
     [AppConnection.AzureKeyVault]: registerAzureKeyVaultConnectionRouter,
     [AppConnection.AzureAppConfiguration]: registerAzureAppConfigurationConnectionRouter,
-    [AppConnection.Databricks]: registerDatabricksConnectionRouter
+    [AppConnection.Databricks]: registerDatabricksConnectionRouter,
+    [AppConnection.Humanitec]: registerHumanitecConnectionRouter
   };

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

@@ -0,0 +1,17 @@
+import {
+  CreateHumanitecSyncSchema,
+  HumanitecSyncSchema,
+  UpdateHumanitecSyncSchema
+} from "@app/services/secret-sync/humanitec";
+import { SecretSync } from "@app/services/secret-sync/secret-sync-enums";
+
+import { registerSyncSecretsEndpoints } from "./secret-sync-endpoints";
+
+export const registerHumanitecSyncRouter = async (server: FastifyZodProvider) =>
+  registerSyncSecretsEndpoints({
+    destination: SecretSync.Humanitec,
+    server,
+    responseSchema: HumanitecSyncSchema,
+    createSchema: CreateHumanitecSyncSchema,
+    updateSchema: UpdateHumanitecSyncSchema
+  });

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

@@ -7,6 +7,7 @@ import { registerAzureKeyVaultSyncRouter } from "./azure-key-vault-sync-router";
 import { registerDatabricksSyncRouter } from "./databricks-sync-router";
 import { registerGcpSyncRouter } from "./gcp-sync-router";
 import { registerGitHubSyncRouter } from "./github-sync-router";
+import { registerHumanitecSyncRouter } from "./humanitec-sync-router";
 
 export * from "./secret-sync-router";
 
@@ -17,5 +18,6 @@ export const SECRET_SYNC_REGISTER_ROUTER_MAP: Record<SecretSync, (server: Fastif
   [SecretSync.GCPSecretManager]: registerGcpSyncRouter,
   [SecretSync.AzureKeyVault]: registerAzureKeyVaultSyncRouter,
   [SecretSync.AzureAppConfiguration]: registerAzureAppConfigurationSyncRouter,
-  [SecretSync.Databricks]: registerDatabricksSyncRouter
+  [SecretSync.Databricks]: registerDatabricksSyncRouter,
+  [SecretSync.Humanitec]: registerHumanitecSyncRouter
 };

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

@@ -21,6 +21,7 @@ import { AzureKeyVaultSyncListItemSchema, AzureKeyVaultSyncSchema } from "@app/s
 import { DatabricksSyncListItemSchema, DatabricksSyncSchema } from "@app/services/secret-sync/databricks";
 import { GcpSyncListItemSchema, GcpSyncSchema } from "@app/services/secret-sync/gcp";
 import { GitHubSyncListItemSchema, GitHubSyncSchema } from "@app/services/secret-sync/github";
+import { HumanitecSyncListItemSchema, HumanitecSyncSchema } from "@app/services/secret-sync/humanitec";
 
 const SecretSyncSchema = z.discriminatedUnion("destination", [
   AwsParameterStoreSyncSchema,
@@ -29,7 +30,8 @@ const SecretSyncSchema = z.discriminatedUnion("destination", [
   GcpSyncSchema,
   AzureKeyVaultSyncSchema,
   AzureAppConfigurationSyncSchema,
-  DatabricksSyncSchema
+  DatabricksSyncSchema,
+  HumanitecSyncSchema
 ]);
 
 const SecretSyncOptionsSchema = z.discriminatedUnion("destination", [
@@ -39,7 +41,8 @@ const SecretSyncOptionsSchema = z.discriminatedUnion("destination", [
   GcpSyncListItemSchema,
   AzureKeyVaultSyncListItemSchema,
   AzureAppConfigurationSyncListItemSchema,
-  DatabricksSyncListItemSchema
+  DatabricksSyncListItemSchema,
+  HumanitecSyncListItemSchema
 ]);
 
 export const registerSecretSyncRouter = async (server: FastifyZodProvider) => {

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

@@ -4,7 +4,8 @@ export enum AppConnection {
   Databricks = "databricks",
   GCP = "gcp",
   AzureKeyVault = "azure-key-vault",
-  AzureAppConfiguration = "azure-app-configuration"
+  AzureAppConfiguration = "azure-app-configuration",
+  Humanitec = "humanitec"
 }
 
 export enum AWSRegion {

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

@@ -35,6 +35,11 @@ import {
   getAzureKeyVaultConnectionListItem,
   validateAzureKeyVaultConnectionCredentials
 } from "./azure-key-vault";
+import {
+  getHumanitecConnectionListItem,
+  HumanitecConnectionMethod,
+  validateHumanitecConnectionCredentials
+} from "./humanitec";
 
 export const listAppConnectionOptions = () => {
   return [
@@ -43,7 +48,8 @@ export const listAppConnectionOptions = () => {
     getGcpConnectionListItem(),
     getAzureKeyVaultConnectionListItem(),
     getAzureAppConfigurationConnectionListItem(),
-    getDatabricksConnectionListItem()
+    getDatabricksConnectionListItem(),
+    getHumanitecConnectionListItem()
   ].sort((a, b) => a.name.localeCompare(b.name));
 };
 
@@ -106,6 +112,8 @@ export const validateAppConnectionCredentials = async (
       return validateAzureKeyVaultConnectionCredentials(appConnection);
     case AppConnection.AzureAppConfiguration:
       return validateAzureAppConfigurationConnectionCredentials(appConnection);
+    case AppConnection.Humanitec:
+      return validateHumanitecConnectionCredentials(appConnection);
     default:
       // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
       throw new Error(`Unhandled App Connection ${app}`);
@@ -128,6 +136,8 @@ export const getAppConnectionMethodName = (method: TAppConnection["method"]) =>
       return "Service Account Impersonation";
     case DatabricksConnectionMethod.ServicePrincipal:
       return "Service Principal";
+    case HumanitecConnectionMethod.AccessKey:
+      return "Access Key";
     default:
       // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
       throw new Error(`Unhandled App Connection Method: ${method}`);

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

@@ -6,5 +6,6 @@ export const APP_CONNECTION_NAME_MAP: Record<AppConnection, string> = {
   [AppConnection.GCP]: "GCP",
   [AppConnection.AzureKeyVault]: "Azure Key Vault",
   [AppConnection.AzureAppConfiguration]: "Azure App Configuration",
-  [AppConnection.Databricks]: "Databricks"
+  [AppConnection.Databricks]: "Databricks",
+  [AppConnection.Humanitec]: "Humanitec"
 };

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

@@ -35,6 +35,8 @@ import { ValidateGcpConnectionCredentialsSchema } from "./gcp";
 import { gcpConnectionService } from "./gcp/gcp-connection-service";
 import { ValidateGitHubConnectionCredentialsSchema } from "./github";
 import { githubConnectionService } from "./github/github-connection-service";
+import { ValidateHumanitecConnectionCredentialsSchema } from "./humanitec";
+import { humanitecConnectionService } from "./humanitec/humanitec-connection-service";
 
 export type TAppConnectionServiceFactoryDep = {
   appConnectionDAL: TAppConnectionDALFactory;
@@ -50,7 +52,8 @@ const VALIDATE_APP_CONNECTION_CREDENTIALS_MAP: Record<AppConnection, TValidateAp
   [AppConnection.GCP]: ValidateGcpConnectionCredentialsSchema,
   [AppConnection.AzureKeyVault]: ValidateAzureKeyVaultConnectionCredentialsSchema,
   [AppConnection.AzureAppConfiguration]: ValidateAzureAppConfigurationConnectionCredentialsSchema,
-  [AppConnection.Databricks]: ValidateDatabricksConnectionCredentialsSchema
+  [AppConnection.Databricks]: ValidateDatabricksConnectionCredentialsSchema,
+  [AppConnection.Humanitec]: ValidateHumanitecConnectionCredentialsSchema
 };
 
 export const appConnectionServiceFactory = ({
@@ -371,6 +374,7 @@ export const appConnectionServiceFactory = ({
     github: githubConnectionService(connectAppConnectionById),
     gcp: gcpConnectionService(connectAppConnectionById),
     databricks: databricksConnectionService(connectAppConnectionById, appConnectionDAL, kmsService),
-    aws: awsConnectionService(connectAppConnectionById)
+    aws: awsConnectionService(connectAppConnectionById),
+    humanitec: humanitecConnectionService(connectAppConnectionById)
   };
 };

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

@@ -32,6 +32,12 @@ import {
   TValidateAzureKeyVaultConnectionCredentials
 } from "./azure-key-vault";
 import { TGcpConnection, TGcpConnectionConfig, TGcpConnectionInput, TValidateGcpConnectionCredentials } from "./gcp";
+import {
+  THumanitecConnection,
+  THumanitecConnectionConfig,
+  THumanitecConnectionInput,
+  TValidateHumanitecConnectionCredentials
+} from "./humanitec";
 
 export type TAppConnection = { id: string } & (
   | TAwsConnection
@@ -40,6 +46,7 @@ export type TAppConnection = { id: string } & (
   | TAzureKeyVaultConnection
   | TAzureAppConfigurationConnection
   | TDatabricksConnection
+  | THumanitecConnection
 );
 
 export type TAppConnectionInput = { id: string } & (
@@ -49,6 +56,7 @@ export type TAppConnectionInput = { id: string } & (
   | TAzureKeyVaultConnectionInput
   | TAzureAppConfigurationConnectionInput
   | TDatabricksConnectionInput
+  | THumanitecConnectionInput
 );
 
 export type TCreateAppConnectionDTO = Pick<
@@ -66,7 +74,8 @@ export type TAppConnectionConfig =
   | TGcpConnectionConfig
   | TAzureKeyVaultConnectionConfig
   | TAzureAppConfigurationConnectionConfig
-  | TDatabricksConnectionConfig;
+  | TDatabricksConnectionConfig
+  | THumanitecConnectionConfig;
 
 export type TValidateAppConnectionCredentials =
   | TValidateAwsConnectionCredentials
@@ -74,7 +83,8 @@ export type TValidateAppConnectionCredentials =
   | TValidateGcpConnectionCredentials
   | TValidateAzureKeyVaultConnectionCredentials
   | TValidateAzureAppConfigurationConnectionCredentials
-  | TValidateDatabricksConnectionCredentials;
+  | TValidateDatabricksConnectionCredentials
+  | TValidateHumanitecConnectionCredentials;
 
 export type TListAwsConnectionKmsKeys = {
   connectionId: string;

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

@@ -0,0 +1,3 @@
+export enum HumanitecConnectionMethod {
+  AccessKey = "access-key"
+}

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

@@ -0,0 +1,101 @@
+import { AxiosError, AxiosResponse } from "axios";
+
+import { request } from "@app/lib/config/request";
+import { BadRequestError, InternalServerError } from "@app/lib/errors";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import { IntegrationUrls } from "@app/services/integration-auth/integration-list";
+
+import { HumanitecConnectionMethod } from "./humanitec-connection-enums";
+import {
+  HumanitecApp,
+  HumanitecOrg,
+  HumanitecOrgWithApps,
+  THumanitecConnection,
+  THumanitecConnectionConfig
+} from "./humanitec-connection-types";
+
+export const getHumanitecConnectionListItem = () => {
+  return {
+    name: "Humanitec" as const,
+    app: AppConnection.Humanitec as const,
+    methods: Object.values(HumanitecConnectionMethod) as [HumanitecConnectionMethod.AccessKey]
+  };
+};
+
+export const validateHumanitecConnectionCredentials = async (config: THumanitecConnectionConfig) => {
+  const { credentials: inputCredentials } = config;
+
+  let response: AxiosResponse<HumanitecOrg[]> | null = null;
+
+  try {
+    response = await request.get<HumanitecOrg[]>(`${IntegrationUrls.HUMANITEC_API_URL}/orgs`, {
+      headers: {
+        Authorization: `Bearer ${inputCredentials.accessKeyId}`
+      }
+    });
+  } catch (error: unknown) {
+    if (error instanceof AxiosError) {
+      throw new BadRequestError({
+        message: `Failed to validate credentials: ${error.response?.data || "Unknown error"}`
+      });
+    }
+    throw new BadRequestError({
+      message: "Unable to validate connection - verify credentials"
+    });
+  }
+
+  if (!response?.data) {
+    throw new InternalServerError({
+      message: "Failed to get organizations: Response was empty"
+    });
+  }
+
+  return inputCredentials;
+};
+
+export const listOrganizations = async (appConnection: THumanitecConnection): Promise<HumanitecOrgWithApps[]> => {
+  const {
+    credentials: { accessKeyId }
+  } = appConnection;
+  const response = await request.get<HumanitecOrg[]>(`${IntegrationUrls.HUMANITEC_API_URL}/orgs`, {
+    headers: {
+      Authorization: `Bearer ${accessKeyId}`
+    }
+  });
+
+  if (!response.data) {
+    throw new InternalServerError({
+      message: "Failed to get organizations: Response was empty"
+    });
+  }
+
+  const orgs = response.data;
+  const appPromises = orgs.map(async (org) => {
+    return request.get<HumanitecApp[]>(`${IntegrationUrls.HUMANITEC_API_URL}/orgs/${org.id}/apps`, {
+      headers: {
+        Authorization: `Bearer ${accessKeyId}`
+      }
+    });
+  });
+
+  const appsResponses = await Promise.all(appPromises);
+
+  const orgsWithApps: HumanitecOrgWithApps[] = orgs.map((org, index) => {
+    if (!appsResponses[index].data) {
+      throw new InternalServerError({
+        message: "Failed to get apps for organization: Response was empty"
+      });
+    }
+
+    const apps = appsResponses[index].data;
+    return {
+      ...org,
+      apps: apps.map((app) => ({
+        name: app.name,
+        id: app.id,
+        envs: app.envs
+      }))
+    };
+  });
+  return orgsWithApps;
+};

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

@@ -0,0 +1,58 @@
+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 { HumanitecConnectionMethod } from "./humanitec-connection-enums";
+
+export const HumanitecConnectionAccessTokenCredentialsSchema = z.object({
+  accessKeyId: z.string().trim().min(1, "Access Key ID required")
+});
+
+const BaseHumanitecConnectionSchema = BaseAppConnectionSchema.extend({ app: z.literal(AppConnection.Humanitec) });
+
+export const HumanitecConnectionSchema = BaseHumanitecConnectionSchema.extend({
+  method: z.literal(HumanitecConnectionMethod.AccessKey),
+  credentials: HumanitecConnectionAccessTokenCredentialsSchema
+});
+
+export const SanitizedHumanitecConnectionSchema = z.discriminatedUnion("method", [
+  BaseHumanitecConnectionSchema.extend({
+    method: z.literal(HumanitecConnectionMethod.AccessKey),
+    credentials: HumanitecConnectionAccessTokenCredentialsSchema.pick({})
+  })
+]);
+
+export const ValidateHumanitecConnectionCredentialsSchema = z.discriminatedUnion("method", [
+  z.object({
+    method: z
+      .literal(HumanitecConnectionMethod.AccessKey)
+      .describe(AppConnections?.CREATE(AppConnection.Humanitec).method),
+    credentials: HumanitecConnectionAccessTokenCredentialsSchema.describe(
+      AppConnections.CREATE(AppConnection.Humanitec).credentials
+    )
+  })
+]);
+
+export const CreateHumanitecConnectionSchema = ValidateHumanitecConnectionCredentialsSchema.and(
+  GenericCreateAppConnectionFieldsSchema(AppConnection.Humanitec)
+);
+
+export const UpdateHumanitecConnectionSchema = z
+  .object({
+    credentials: HumanitecConnectionAccessTokenCredentialsSchema.optional().describe(
+      AppConnections.UPDATE(AppConnection.Humanitec).credentials
+    )
+  })
+  .and(GenericUpdateAppConnectionFieldsSchema(AppConnection.Humanitec));
+
+export const HumanitecConnectionListItemSchema = z.object({
+  name: z.literal("Humanitec"),
+  app: z.literal(AppConnection.Humanitec),
+  methods: z.nativeEnum(HumanitecConnectionMethod).array()
+});

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

@@ -0,0 +1,27 @@
+import { OrgServiceActor } from "@app/lib/types";
+
+import { AppConnection } from "../app-connection-enums";
+import { listOrganizations as getHumanitecOrganizations } from "./humanitec-connection-fns";
+import { THumanitecConnection } from "./humanitec-connection-types";
+
+type TGetAppConnectionFunc = (
+  app: AppConnection,
+  connectionId: string,
+  actor: OrgServiceActor
+) => Promise<THumanitecConnection>;
+
+export const humanitecConnectionService = (getAppConnection: TGetAppConnectionFunc) => {
+  const listOrganizations = async (connectionId: string, actor: OrgServiceActor) => {
+    const appConnection = await getAppConnection(AppConnection.Humanitec, connectionId, actor);
+    try {
+      const organizations = await getHumanitecOrganizations(appConnection);
+      return organizations;
+    } catch (error) {
+      return [];
+    }
+  };
+
+  return {
+    listOrganizations
+  };
+};

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

@@ -0,0 +1,40 @@
+import z from "zod";
+
+import { DiscriminativePick } from "@app/lib/types";
+
+import { AppConnection } from "../app-connection-enums";
+import {
+  CreateHumanitecConnectionSchema,
+  HumanitecConnectionSchema,
+  ValidateHumanitecConnectionCredentialsSchema
+} from "./humanitec-connection-schemas";
+
+export type THumanitecConnection = z.infer<typeof HumanitecConnectionSchema>;
+
+export type THumanitecConnectionInput = z.infer<typeof CreateHumanitecConnectionSchema> & {
+  app: AppConnection.Humanitec;
+};
+
+export type TValidateHumanitecConnectionCredentials = typeof ValidateHumanitecConnectionCredentialsSchema;
+
+export type THumanitecConnectionConfig = DiscriminativePick<
+  THumanitecConnectionInput,
+  "method" | "app" | "credentials"
+> & {
+  orgId: string;
+};
+
+export type HumanitecOrg = {
+  id: string;
+  name: string;
+};
+
+export type HumanitecApp = {
+  name: string;
+  id: string;
+  envs: { name: string; id: string }[];
+};
+
+export type HumanitecOrgWithApps = HumanitecOrg & {
+  apps: HumanitecApp[];
+};

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

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

backend/src/services/integration-auth/integration-list.ts

@@ -93,6 +93,7 @@ export enum IntegrationUrls {
   NORTHFLANK_API_URL = "https://api.northflank.com",
   HASURA_CLOUD_API_URL = "https://data.pro.hasura.io/v1/graphql",
   AZURE_DEVOPS_API_URL = "https://dev.azure.com",
+  HUMANITEC_API_URL = "https://api.humanitec.io",
 
   GCP_SECRET_MANAGER_SERVICE_NAME = "secretmanager.googleapis.com",
   GCP_SECRET_MANAGER_URL = `https://${GCP_SECRET_MANAGER_SERVICE_NAME}`,

backend/src/services/secret-sync/humanitec/humanitec-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 HUMANITEC_SYNC_LIST_OPTION: TSecretSyncListItem = {
+  name: "Humanitec",
+  destination: SecretSync.Humanitec,
+  connection: AppConnection.Humanitec,
+  canImportSecrets: false
+};

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

@@ -0,0 +1,160 @@
+import { request } from "@app/lib/config/request";
+import { IntegrationUrls } from "@app/services/integration-auth/integration-list";
+import { SecretSyncError } from "@app/services/secret-sync/secret-sync-errors";
+import { SECRET_SYNC_NAME_MAP } from "@app/services/secret-sync/secret-sync-maps";
+import { TSecretMap } from "@app/services/secret-sync/secret-sync-types";
+
+import { HumanitecSecret, THumanitecSyncWithCredentials } from "./humanitec-sync-types";
+
+const getHumanitecSecrets = async (secretSync: THumanitecSyncWithCredentials) => {
+  const {
+    destinationConfig,
+    connection: {
+      credentials: { accessKeyId }
+    }
+  } = secretSync;
+
+  const { data } = await request.get<HumanitecSecret[]>(
+    `${IntegrationUrls.HUMANITEC_API_URL}/orgs/${destinationConfig.org}/apps/${destinationConfig.app}/envs/${destinationConfig.env}/values`,
+    {
+      headers: {
+        Authorization: `Bearer ${accessKeyId}`,
+        "Accept-Encoding": "application/json"
+      }
+    }
+  );
+
+  return data;
+};
+
+const deleteSecret = async (secretSync: THumanitecSyncWithCredentials, encryptedSecret: HumanitecSecret) => {
+  const {
+    destinationConfig,
+    connection: {
+      credentials: { accessKeyId }
+    }
+  } = secretSync;
+
+  try {
+    await request.delete(
+      `${IntegrationUrls.HUMANITEC_API_URL}/orgs/${destinationConfig.org}/apps/${destinationConfig.app}/envs/${destinationConfig.env}/values/${encryptedSecret.key}`,
+      {
+        headers: {
+          Authorization: `Bearer ${accessKeyId}`,
+          "Accept-Encoding": "application/json"
+        }
+      }
+    );
+  } catch (error) {
+    throw new SecretSyncError({
+      error,
+      secretKey: encryptedSecret.key
+    });
+  }
+};
+
+const createSecret = async (secretSync: THumanitecSyncWithCredentials, secretMap: TSecretMap, key: string) => {
+  try {
+    const {
+      destinationConfig,
+      connection: {
+        credentials: { accessKeyId }
+      }
+    } = secretSync;
+
+    await request.post(
+      `${IntegrationUrls.HUMANITEC_API_URL}/orgs/${destinationConfig.org}/apps/${destinationConfig.app}/values`,
+      {
+        key,
+        value: "",
+        description: secretMap[key].comment || ""
+      },
+      {
+        headers: {
+          Authorization: `Bearer ${accessKeyId}`,
+          "Accept-Encoding": "application/json"
+        }
+      }
+    );
+    await request.patch(
+      `${IntegrationUrls.HUMANITEC_API_URL}/orgs/${destinationConfig.org}/apps/${destinationConfig.app}/envs/${destinationConfig.env}/values/${key}`,
+      {
+        value: secretMap[key].value,
+        description: secretMap[key].comment || ""
+      },
+      {
+        headers: {
+          Authorization: `Bearer ${accessKeyId}`,
+          "Accept-Encoding": "application/json"
+        }
+      }
+    );
+  } catch (error) {
+    throw new SecretSyncError({
+      error,
+      secretKey: key
+    });
+  }
+};
+
+const updateSecret = async (secretSync: THumanitecSyncWithCredentials, secretMap: TSecretMap, key: string) => {
+  try {
+    const {
+      destinationConfig,
+      connection: {
+        credentials: { accessKeyId }
+      }
+    } = secretSync;
+    await request.patch(
+      `${IntegrationUrls.HUMANITEC_API_URL}/orgs/${destinationConfig.org}/apps/${destinationConfig.app}/envs/${destinationConfig.env}/values/${key}`,
+      {
+        value: secretMap[key].value,
+        description: secretMap[key].comment
+      },
+      {
+        headers: {
+          Authorization: `Bearer ${accessKeyId}`,
+          "Accept-Encoding": "application/json"
+        }
+      }
+    );
+  } catch (error) {
+    throw new SecretSyncError({
+      error,
+      secretKey: key
+    });
+  }
+};
+
+export const HumanitecSyncFns = {
+  syncSecrets: async (secretSync: THumanitecSyncWithCredentials, secretMap: TSecretMap) => {
+    const humanitecSecrets = await getHumanitecSecrets(secretSync);
+    const humanitecSecretsKeys = new Set(humanitecSecrets.map((s) => s.key));
+    for await (const key of Object.keys(secretMap)) {
+      if (!humanitecSecretsKeys.has(key)) {
+        await createSecret(secretSync, secretMap, key);
+      } else {
+        await updateSecret(secretSync, secretMap, key);
+      }
+    }
+
+    for await (const humanitecSecret of humanitecSecrets) {
+      if (!secretMap[humanitecSecret.key]) {
+        await deleteSecret(secretSync, humanitecSecret);
+      }
+    }
+  },
+  getSecrets: async (secretSync: THumanitecSyncWithCredentials): Promise<TSecretMap> => {
+    throw new Error(`${SECRET_SYNC_NAME_MAP[secretSync.destination]} does not support importing secrets.`);
+  },
+
+  removeSecrets: async (secretSync: THumanitecSyncWithCredentials, secretMap: TSecretMap) => {
+    const encryptedSecrets = await getHumanitecSecrets(secretSync);
+
+    for await (const encryptedSecret of encryptedSecrets) {
+      if (encryptedSecret.key in secretMap) {
+        await deleteSecret(secretSync, encryptedSecret);
+      }
+    }
+  }
+};

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

@@ -0,0 +1,45 @@
+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";
+
+const HumanitecSyncDestinationConfigSchema = z.object({
+  app: z.string().min(1, "App ID is required").describe(SecretSyncs.DESTINATION_CONFIG.HUMANITEC.app),
+  org: z.string().min(1, "Org ID is required").describe(SecretSyncs.DESTINATION_CONFIG.HUMANITEC.org),
+  env: z.string().min(1, "Env ID is required").describe(SecretSyncs.DESTINATION_CONFIG.HUMANITEC.env)
+});
+
+const HumanitecSyncOptionsConfig: TSyncOptionsConfig = { canImportSecrets: false };
+
+export const HumanitecSyncSchema = BaseSecretSyncSchema(SecretSync.Humanitec, HumanitecSyncOptionsConfig).extend({
+  destination: z.literal(SecretSync.Humanitec),
+  destinationConfig: HumanitecSyncDestinationConfigSchema
+});
+
+export const CreateHumanitecSyncSchema = GenericCreateSecretSyncFieldsSchema(
+  SecretSync.Humanitec,
+  HumanitecSyncOptionsConfig
+).extend({
+  destinationConfig: HumanitecSyncDestinationConfigSchema
+});
+
+export const UpdateHumanitecSyncSchema = GenericUpdateSecretSyncFieldsSchema(
+  SecretSync.Humanitec,
+  HumanitecSyncOptionsConfig
+).extend({
+  destinationConfig: HumanitecSyncDestinationConfigSchema.optional()
+});
+
+export const HumanitecSyncListItemSchema = z.object({
+  name: z.literal("Humanitec"),
+  connection: z.literal(AppConnection.Humanitec),
+  destination: z.literal(SecretSync.Humanitec),
+  canImportSecrets: z.literal(false)
+});

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

@@ -0,0 +1,23 @@
+import z from "zod";
+
+import { THumanitecConnection } from "@app/services/app-connection/humanitec";
+
+import { CreateHumanitecSyncSchema, HumanitecSyncListItemSchema, HumanitecSyncSchema } from "./humanitec-sync-schemas";
+
+export type THumanitecSyncListItem = z.infer<typeof HumanitecSyncListItemSchema>;
+
+export type THumanitecSync = z.infer<typeof HumanitecSyncSchema>;
+
+export type THumanitecSyncInput = z.infer<typeof CreateHumanitecSyncSchema>;
+
+export type THumanitecSyncWithCredentials = THumanitecSync & {
+  connection: THumanitecConnection;
+};
+
+export type HumanitecSecret = {
+  description: string;
+  is_secret: boolean;
+  key: string;
+  source: "app" | "env";
+  value: string;
+};

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

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

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

@@ -5,7 +5,8 @@ export enum SecretSync {
   GCPSecretManager = "gcp-secret-manager",
   AzureKeyVault = "azure-key-vault",
   AzureAppConfiguration = "azure-app-configuration",
-  Databricks = "databricks"
+  Databricks = "databricks",
+  Humanitec = "humanitec"
 }
 
 export enum SecretSyncInitialSyncBehavior {

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

@@ -24,6 +24,8 @@ import { AZURE_APP_CONFIGURATION_SYNC_LIST_OPTION, azureAppConfigurationSyncFact
 import { AZURE_KEY_VAULT_SYNC_LIST_OPTION, azureKeyVaultSyncFactory } from "./azure-key-vault";
 import { GCP_SYNC_LIST_OPTION } from "./gcp";
 import { GcpSyncFns } from "./gcp/gcp-sync-fns";
+import { HUMANITEC_SYNC_LIST_OPTION } from "./humanitec";
+import { HumanitecSyncFns } from "./humanitec/humanitec-sync-fns";
 
 const SECRET_SYNC_LIST_OPTIONS: Record<SecretSync, TSecretSyncListItem> = {
   [SecretSync.AWSParameterStore]: AWS_PARAMETER_STORE_SYNC_LIST_OPTION,
@@ -32,7 +34,8 @@ const SECRET_SYNC_LIST_OPTIONS: Record<SecretSync, TSecretSyncListItem> = {
   [SecretSync.GCPSecretManager]: GCP_SYNC_LIST_OPTION,
   [SecretSync.AzureKeyVault]: AZURE_KEY_VAULT_SYNC_LIST_OPTION,
   [SecretSync.AzureAppConfiguration]: AZURE_APP_CONFIGURATION_SYNC_LIST_OPTION,
-  [SecretSync.Databricks]: DATABRICKS_SYNC_LIST_OPTION
+  [SecretSync.Databricks]: DATABRICKS_SYNC_LIST_OPTION,
+  [SecretSync.Humanitec]: HUMANITEC_SYNC_LIST_OPTION
 };
 
 export const listSecretSyncOptions = () => {
@@ -116,6 +119,8 @@ export const SecretSyncFns = {
           appConnectionDAL,
           kmsService
         }).syncSecrets(secretSync, secretMap);
+      case SecretSync.Humanitec:
+        return HumanitecSyncFns.syncSecrets(secretSync, secretMap);
       default:
         throw new Error(
           `Unhandled sync destination for sync secrets fns: ${(secretSync as TSecretSyncWithCredentials).destination}`
@@ -157,6 +162,9 @@ export const SecretSyncFns = {
           appConnectionDAL,
           kmsService
         }).getSecrets(secretSync);
+      case SecretSync.Humanitec:
+        secretMap = await HumanitecSyncFns.getSecrets(secretSync);
+        break;
       default:
         throw new Error(
           `Unhandled sync destination for get secrets fns: ${(secretSync as TSecretSyncWithCredentials).destination}`
@@ -197,6 +205,8 @@ export const SecretSyncFns = {
           appConnectionDAL,
           kmsService
         }).removeSecrets(secretSync, secretMap);
+      case SecretSync.Humanitec:
+        return HumanitecSyncFns.removeSecrets(secretSync, secretMap);
       default:
         throw new Error(
           `Unhandled sync destination for remove secrets fns: ${(secretSync as TSecretSyncWithCredentials).destination}`

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

@@ -8,7 +8,8 @@ export const SECRET_SYNC_NAME_MAP: Record<SecretSync, string> = {
   [SecretSync.GCPSecretManager]: "GCP Secret Manager",
   [SecretSync.AzureKeyVault]: "Azure Key Vault",
   [SecretSync.AzureAppConfiguration]: "Azure App Configuration",
-  [SecretSync.Databricks]: "Databricks"
+  [SecretSync.Databricks]: "Databricks",
+  [SecretSync.Humanitec]: "Humanitec"
 };
 
 export const SECRET_SYNC_CONNECTION_MAP: Record<SecretSync, AppConnection> = {
@@ -18,5 +19,6 @@ export const SECRET_SYNC_CONNECTION_MAP: Record<SecretSync, AppConnection> = {
   [SecretSync.GCPSecretManager]: AppConnection.GCP,
   [SecretSync.AzureKeyVault]: AppConnection.AzureKeyVault,
   [SecretSync.AzureAppConfiguration]: AppConnection.AzureAppConfiguration,
-  [SecretSync.Databricks]: AppConnection.Databricks
+  [SecretSync.Databricks]: AppConnection.Databricks,
+  [SecretSync.Humanitec]: AppConnection.Humanitec
 };

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

@@ -43,6 +43,12 @@ import {
   TAzureKeyVaultSyncWithCredentials
 } from "./azure-key-vault";
 import { TGcpSync, TGcpSyncInput, TGcpSyncListItem, TGcpSyncWithCredentials } from "./gcp";
+import {
+  THumanitecSync,
+  THumanitecSyncInput,
+  THumanitecSyncListItem,
+  THumanitecSyncWithCredentials
+} from "./humanitec";
 
 export type TSecretSync =
   | TAwsParameterStoreSync
@@ -51,7 +57,8 @@ export type TSecretSync =
   | TGcpSync
   | TAzureKeyVaultSync
   | TAzureAppConfigurationSync
-  | TDatabricksSync;
+  | TDatabricksSync
+  | THumanitecSync;
 
 export type TSecretSyncWithCredentials =
   | TAwsParameterStoreSyncWithCredentials
@@ -60,7 +67,8 @@ export type TSecretSyncWithCredentials =
   | TGcpSyncWithCredentials
   | TAzureKeyVaultSyncWithCredentials
   | TAzureAppConfigurationSyncWithCredentials
-  | TDatabricksSyncWithCredentials;
+  | TDatabricksSyncWithCredentials
+  | THumanitecSyncWithCredentials;
 
 export type TSecretSyncInput =
   | TAwsParameterStoreSyncInput
@@ -69,7 +77,8 @@ export type TSecretSyncInput =
   | TGcpSyncInput
   | TAzureKeyVaultSyncInput
   | TAzureAppConfigurationSyncInput
-  | TDatabricksSyncInput;
+  | TDatabricksSyncInput
+  | THumanitecSyncInput;
 
 export type TSecretSyncListItem =
   | TAwsParameterStoreSyncListItem
@@ -78,7 +87,8 @@ export type TSecretSyncListItem =
   | TGcpSyncListItem
   | TAzureKeyVaultSyncListItem
   | TAzureAppConfigurationSyncListItem
-  | TDatabricksSyncListItem;
+  | TDatabricksSyncListItem
+  | THumanitecSyncListItem;
 
 export type TSyncOptionsConfig = {
   canImportSecrets: boolean;