feat(k8s): pushsecret go templating

docs/integrations/platforms/kubernetes/infisical-push-secret-crd.mdx

@@ -401,6 +401,82 @@ After applying the InfisicalPushSecret CRD, you should notice that the secrets y
 </Accordion>
 
 
+## Using templating to push secrets
+
+Pushing secrets to Infisical from the operator may not always be enough.
+Templating is a useful utility of the Infisical secrets operator that allows you to use Go Templating to template the secrets you want to push to Infisical.
+Using Go templates, you can format, combine, and create new key-value pairs of secrets that you want to push to Infisical.
+
+<Accordion title="push.secret.template"/>
+<Accordion title="push.secret.template.includeAllSecrets">
+  This property controls what secrets are included in your push to Infisica.
+  When set to `true`, all secrets included in the `push.secret.secretName` Kubernetes secret will be pushed to Infisical.
+  **Use this option when you would like to push all secrets to Infisical from the secrets operator, but want to template a subset of them.**
+
+  When set to `false`, only secrets defined in the `push.secret.template.data` field of the template will be pushed to Infisical.
+  Use this option when you would like to push **only** a subset of secrets from the Kubernetes secret to Infisical.
+</Accordion>
+<Accordion title="push.secret.template.data">
+  Define secret keys and their corresponding templates. 
+  Each data value uses a Golang template with access to all secrets defined in the `push.secret.secretName` Kubernetes secret.
+
+  Secrets are structured as follows:
+
+  ```go
+  type TemplateSecret struct {
+      Value      string `json:"value"`
+      SecretPath string `json:"secretPath"`
+  }
+  ```
+
+  #### Example template configuration:
+
+  ```yaml
+  # This example assumes that the `push-secret-demo` Kubernetes secret contains the following secrets:
+  # SITE_URL = "https://example.com"
+  # REGION = "us-east-1"
+  # OTHER_SECRET = "other-secret"
+
+  push:
+    secret:
+      secretName: push-secret-demo
+      secretNamespace: default
+      template:
+        includeAllSecrets: true # Includes all secrets from the `push-secret-demo` Kubernetes secret
+        data:
+          SITE_URL: "{{ .SITE_URL.Value }}"
+          API_URL: "https://api.{{.SITE_URL.Value}}.{{.REGION.Value}}.com" # Will create a new secret in Infisical with the key `API_URL` with the value of the `SITE_URL` and `REGION` secrets
+  ```
+
+  To help transform your config map data further, the operator provides a set of built-in functions that you can use in your templates.
+
+  ### Available templating functions
+
+  <Accordion title="encodeBase64">
+    **Function name**: encodeBase64
+
+    **Description**:
+    Given a string, this function will encode the string as a base64 encoded string.
+    This function is useful when you want to store a string as a base64 encoded value in Infisical.
+
+    **Returns**: The base64 encoded string.
+
+    **Example**:
+    The example below assumes that the `PLAIN_KEY` secret is stored in your source secret as a plaintext string.
+
+    ```yaml
+      push:
+        secret:
+          secretName: push-secret-demo
+          secretNamespace: default
+          template:
+            includeAllSecrets: true
+            data:
+              PLAIN_KEY: "{{ encodeBase64 .PLAIN_KEY.Value }}" # Will be stored in Infisical as a base64 encoded string
+    ```
+  </Accordion>
+</Accordion>
+
 ## Applying the InfisicalPushSecret CRD to your cluster
 
 Once you have configured the `InfisicalPushSecret` CRD with the required fields, you can apply it to your cluster.

k8-operator/api/v1alpha1/common.go

@@ -105,7 +105,7 @@ type ManagedKubeSecretConfig struct {
 
 	// The template to transform the secret data
 	// +kubebuilder:validation:Optional
-	Template *InfisicalSecretTemplate `json:"template,omitempty"`
+	Template *SecretTemplate `json:"template,omitempty"`
 }
 
 type ManagedKubeConfigMapConfig struct {
@@ -127,5 +127,15 @@ type ManagedKubeConfigMapConfig struct {
 
 	// The template to transform the secret data
 	// +kubebuilder:validation:Optional
-	Template *InfisicalSecretTemplate `json:"template,omitempty"`
+	Template *SecretTemplate `json:"template,omitempty"`
+}
+
+type SecretTemplate struct {
+	// This injects all retrieved secrets into the top level of your template.
+	// Secrets defined in the template will take precedence over the injected ones.
+	// +kubebuilder:validation:Optional
+	IncludeAllSecrets bool `json:"includeAllSecrets"`
+	// The template key values
+	// +kubebuilder:validation:Optional
+	Data map[string]string `json:"data,omitempty"`
 }

k8-operator/api/v1alpha1/infisicalpushsecret_types.go

@@ -16,9 +16,22 @@ type InfisicalPushSecretDestination struct {
 	ProjectID string `json:"projectId"`
 }
 
+type InfisicalPushSecretSecretSource struct {
+	// The name of the Kubernetes Secret
+	// +kubebuilder:validation:Required
+	SecretName string `json:"secretName"`
+
+	// The name space where the Kubernetes Secret is located
+	// +kubebuilder:validation:Required
+	SecretNamespace string `json:"secretNamespace"`
+
+	// +kubebuilder:validation:Optional
+	Template *SecretTemplate `json:"template,omitempty"`
+}
+
 type SecretPush struct {
 	// +kubebuilder:validation:Required
-	Secret KubeSecretReference `json:"secret"`
+	Secret InfisicalPushSecretSecretSource `json:"secret"`
 }
 
 // InfisicalPushSecretSpec defines the desired state of InfisicalPushSecret

k8-operator/api/v1alpha1/infisicalsecret_types.go

@@ -116,16 +116,6 @@ type MachineIdentityScopeInWorkspace struct {
 	Recursive bool `json:"recursive"`
 }
 
-type InfisicalSecretTemplate struct {
-	// This injects all retrieved secrets into the top level of your template.
-	// Secrets defined in the template will take precedence over the injected ones.
-	// +kubebuilder:validation:Optional
-	IncludeAllSecrets bool `json:"includeAllSecrets"`
-	// The template key values
-	// +kubebuilder:validation:Optional
-	Data map[string]string `json:"data,omitempty"`
-}
-
 // InfisicalSecretSpec defines the desired state of InfisicalSecret
 type InfisicalSecretSpec struct {
 	// +kubebuilder:validation:Optional

k8-operator/api/v1alpha1/zz_generated.deepcopy.go

@@ -383,7 +383,7 @@ func (in *InfisicalPushSecret) DeepCopyInto(out *InfisicalPushSecret) {
 	*out = *in
 	out.TypeMeta = in.TypeMeta
 	in.ObjectMeta.DeepCopyInto(&out.ObjectMeta)
-	out.Spec = in.Spec
+	in.Spec.DeepCopyInto(&out.Spec)
 	in.Status.DeepCopyInto(&out.Status)
 }
 
@@ -452,12 +452,32 @@ func (in *InfisicalPushSecretList) DeepCopyObject() runtime.Object {
 	return nil
 }
 
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *InfisicalPushSecretSecretSource) DeepCopyInto(out *InfisicalPushSecretSecretSource) {
+	*out = *in
+	if in.Template != nil {
+		in, out := &in.Template, &out.Template
+		*out = new(SecretTemplate)
+		(*in).DeepCopyInto(*out)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new InfisicalPushSecretSecretSource.
+func (in *InfisicalPushSecretSecretSource) DeepCopy() *InfisicalPushSecretSecretSource {
+	if in == nil {
+		return nil
+	}
+	out := new(InfisicalPushSecretSecretSource)
+	in.DeepCopyInto(out)
+	return out
+}
+
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *InfisicalPushSecretSpec) DeepCopyInto(out *InfisicalPushSecretSpec) {
 	*out = *in
 	out.Destination = in.Destination
 	out.Authentication = in.Authentication
-	out.Push = in.Push
+	in.Push.DeepCopyInto(&out.Push)
 	out.TLS = in.TLS
 }
 
@@ -614,28 +634,6 @@ func (in *InfisicalSecretStatus) DeepCopy() *InfisicalSecretStatus {
 	return out
 }
 
-// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
-func (in *InfisicalSecretTemplate) DeepCopyInto(out *InfisicalSecretTemplate) {
-	*out = *in
-	if in.Data != nil {
-		in, out := &in.Data, &out.Data
-		*out = make(map[string]string, len(*in))
-		for key, val := range *in {
-			(*out)[key] = val
-		}
-	}
-}
-
-// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new InfisicalSecretTemplate.
-func (in *InfisicalSecretTemplate) DeepCopy() *InfisicalSecretTemplate {
-	if in == nil {
-		return nil
-	}
-	out := new(InfisicalSecretTemplate)
-	in.DeepCopyInto(out)
-	return out
-}
-
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *KubeSecretReference) DeepCopyInto(out *KubeSecretReference) {
 	*out = *in
@@ -703,7 +701,7 @@ func (in *ManagedKubeConfigMapConfig) DeepCopyInto(out *ManagedKubeConfigMapConf
 	*out = *in
 	if in.Template != nil {
 		in, out := &in.Template, &out.Template
-		*out = new(InfisicalSecretTemplate)
+		*out = new(SecretTemplate)
 		(*in).DeepCopyInto(*out)
 	}
 }
@@ -723,7 +721,7 @@ func (in *ManagedKubeSecretConfig) DeepCopyInto(out *ManagedKubeSecretConfig) {
 	*out = *in
 	if in.Template != nil {
 		in, out := &in.Template, &out.Template
-		*out = new(InfisicalSecretTemplate)
+		*out = new(SecretTemplate)
 		(*in).DeepCopyInto(*out)
 	}
 }
@@ -741,7 +739,7 @@ func (in *ManagedKubeSecretConfig) DeepCopy() *ManagedKubeSecretConfig {
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *SecretPush) DeepCopyInto(out *SecretPush) {
 	*out = *in
-	out.Secret = in.Secret
+	in.Secret.DeepCopyInto(&out.Secret)
 }
 
 // DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new SecretPush.
@@ -769,6 +767,28 @@ func (in *SecretScopeInWorkspace) DeepCopy() *SecretScopeInWorkspace {
 	return out
 }
 
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *SecretTemplate) DeepCopyInto(out *SecretTemplate) {
+	*out = *in
+	if in.Data != nil {
+		in, out := &in.Data, &out.Data
+		*out = make(map[string]string, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new SecretTemplate.
+func (in *SecretTemplate) DeepCopy() *SecretTemplate {
+	if in == nil {
+		return nil
+	}
+	out := new(SecretTemplate)
+	in.DeepCopyInto(out)
+	return out
+}
+
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *ServiceAccountDetails) DeepCopyInto(out *ServiceAccountDetails) {
 	*out = *in

k8-operator/config/crd/bases/secrets.infisical.com_infisicalpushsecrets.yaml

@@ -137,6 +137,19 @@ spec:
                         description: The name space where the Kubernetes Secret is
                           located
                         type: string
+                      template:
+                        properties:
+                          data:
+                            additionalProperties:
+                              type: string
+                            description: The template key values
+                            type: object
+                          includeAllSecrets:
+                            description: This injects all retrieved secrets into the
+                              top level of your template. Secrets defined in the template
+                              will take precedence over the injected ones.
+                            type: boolean
+                        type: object
                     required:
                     - secretName
                     - secretNamespace

k8-operator/config/samples/crd/pushsecret/push-secret-with-template.yaml

@@ -0,0 +1,39 @@
+apiVersion: secrets.infisical.com/v1alpha1
+kind: InfisicalPushSecret
+metadata:
+  name: infisical-api-secret-sample-push
+spec:
+  resyncInterval: 1m
+  hostAPI: http://localhost:8080/api
+
+  # Optional, defaults to replacement.
+  updatePolicy: Replace # If set to replace, existing secrets inside Infisical will be replaced by the value of the PushSecret on sync.
+
+  # Optional, defaults to no deletion.
+  deletionPolicy: Delete # If set to delete, the secret(s) inside Infisical managed by the operator, will be deleted if the InfisicalPushSecret CRD is deleted.
+
+  destination:
+    projectId: <project-id>
+    environmentSlug: <env-slug>
+    secretsPath: <secret-path>
+
+  push:
+    secret:
+      secretName: push-secret-demo # Secret CRD
+      secretNamespace: default
+      template:
+        includeAllSecrets: false
+        data:
+          # Encodes the data so it's stored as base64 in Infisical.
+          API_KEY: "{{ .API_KEY.Value }}"
+          DATABASE_URL: "{{ .DATABASE_URL.Value }}"
+          ENCRYPTION_KEY: "{{ .ENCRYPTION_KEY.Value }}"
+          OTHER_VALUE: "{{ encodeBase64 .API_KEY.Value }} {{ encodeBase64 .DATABASE_URL.Value }} {{ encodeBase64 .ENCRYPTION_KEY.Value }}"
+
+  # Only have one authentication method defined or you are likely to run into authentication issues.
+  # Remove all except one authentication method.
+  authentication:
+    universalAuth:
+      credentialsRef:
+        secretName: universal-auth-credentials
+        secretNamespace: default

k8-operator/controllers/infisicalpushsecret/infisicalpushsecret_helper.go

@@ -1,16 +1,20 @@
 package controllers
 
 import (
+	"bytes"
 	"context"
 	"errors"
 	"fmt"
 	"strings"
+	"text/template"
 
 	"github.com/Infisical/infisical/k8-operator/api/v1alpha1"
 	"github.com/Infisical/infisical/k8-operator/packages/api"
 	"github.com/Infisical/infisical/k8-operator/packages/constants"
+	"github.com/Infisical/infisical/k8-operator/packages/model"
 	"github.com/Infisical/infisical/k8-operator/packages/util"
 	"github.com/go-logr/logr"
+	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 
@@ -101,6 +105,48 @@ func (r *InfisicalPushSecretReconciler) updateResourceVariables(infisicalPushSec
 	infisicalPushSecretResourceVariablesMap[string(infisicalPushSecret.UID)] = resourceVariables
 }
 
+func (r *InfisicalPushSecretReconciler) processTemplatedSecrets(infisicalPushSecret v1alpha1.InfisicalPushSecret, kubePushSecret *corev1.Secret, destination v1alpha1.InfisicalPushSecretDestination) (map[string]string, error) {
+
+	processedSecrets := make(map[string]string)
+
+	sourceSecrets := make(map[string]model.SecretTemplateOptions)
+	for key, value := range kubePushSecret.Data {
+
+		sourceSecrets[key] = model.SecretTemplateOptions{
+			Value:      string(value),
+			SecretPath: destination.SecretsPath,
+		}
+	}
+
+	if infisicalPushSecret.Spec.Push.Secret.Template == nil || (infisicalPushSecret.Spec.Push.Secret.Template != nil && infisicalPushSecret.Spec.Push.Secret.Template.IncludeAllSecrets) {
+		for key, value := range kubePushSecret.Data {
+			processedSecrets[key] = string(value)
+		}
+	}
+
+	if infisicalPushSecret.Spec.Push.Secret.Template != nil &&
+		len(infisicalPushSecret.Spec.Push.Secret.Template.Data) > 0 {
+
+		for templateKey, userTemplate := range infisicalPushSecret.Spec.Push.Secret.Template.Data {
+
+			tmpl, err := template.New("push-secret-templates").Funcs(util.InfisicalSecretTemplateFunctions).Parse(userTemplate)
+			if err != nil {
+				return nil, fmt.Errorf("unable to compile template: %s [err=%v]", templateKey, err)
+			}
+
+			buf := bytes.NewBuffer(nil)
+			err = tmpl.Execute(buf, sourceSecrets)
+			if err != nil {
+				return nil, fmt.Errorf("unable to execute template: %s [err=%v]", templateKey, err)
+			}
+
+			processedSecrets[templateKey] = buf.String()
+		}
+	}
+
+	return processedSecrets, nil
+}
+
 func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context.Context, logger logr.Logger, infisicalPushSecret v1alpha1.InfisicalPushSecret) error {
 
 	resourceVariables := r.getResourceVariables(infisicalPushSecret)
@@ -134,10 +180,9 @@ func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context
 		return fmt.Errorf("unable to fetch kube secret [err=%s]", err)
 	}
 
-	var kubeSecrets = make(map[string]string)
-
-	for key, value := range kubePushSecret.Data {
-		kubeSecrets[key] = string(value)
+	processedSecrets, err := r.processTemplatedSecrets(infisicalPushSecret, kubePushSecret, infisicalPushSecret.Spec.Destination)
+	if err != nil {
+		return fmt.Errorf("unable to process templated secrets [err=%s]", err)
 	}
 
 	destination := infisicalPushSecret.Spec.Destination
@@ -191,7 +236,7 @@ func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context
 
 		infisicalPushSecret.Status.ManagedSecrets = make(map[string]string) // (string[id], string[key] )
 
-		for secretKey, secretValue := range kubeSecrets {
+		for secretKey, secretValue := range processedSecrets {
 			if exists := getExistingSecretByKey(secretKey); exists != nil {
 
 				if updatePolicy == string(constants.PUSH_SECRET_REPLACE_POLICY_ENABLED) {
@@ -280,7 +325,7 @@ func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context
 		// We need to check if any of the secrets have been removed in the new kube secret
 		for _, managedSecretKey := range infisicalPushSecret.Status.ManagedSecrets {
 
-			if _, ok := kubeSecrets[managedSecretKey]; !ok {
+			if _, ok := processedSecrets[managedSecretKey]; !ok {
 
 				// Secret has been removed, verify that the secret is managed by the operator
 				if getExistingSecretByKey(managedSecretKey) != nil {
@@ -305,7 +350,7 @@ func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context
 		}
 
 		// We need to check if any new secrets have been added in the kube secret
-		for currentSecretKey := range kubeSecrets {
+		for currentSecretKey := range processedSecrets {
 
 			if exists := getExistingSecretByKey(currentSecretKey); exists == nil {
 
@@ -317,7 +362,7 @@ func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context
 
 					createdSecret, err := infisicalClient.Secrets().Create(infisicalSdk.CreateSecretOptions{
 						SecretKey:   currentSecretKey,
-						SecretValue: kubeSecrets[currentSecretKey],
+						SecretValue: processedSecrets[currentSecretKey],
 						ProjectID:   destination.ProjectID,
 						Environment: destination.EnvironmentSlug,
 						SecretPath:  destination.SecretsPath,
@@ -336,12 +381,12 @@ func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context
 
 					existingSecret := getExistingSecretByKey(currentSecretKey)
 
-					if existingSecret != nil && existingSecret.SecretValue != kubeSecrets[currentSecretKey] {
+					if existingSecret != nil && existingSecret.SecretValue != processedSecrets[currentSecretKey] {
 						logger.Info(fmt.Sprintf("Secret with key [key=%s] has changed value. Updating secret in Infisical", currentSecretKey))
 
 						updatedSecret, err := infisicalClient.Secrets().Update(infisicalSdk.UpdateSecretOptions{
 							SecretKey:      currentSecretKey,
-							NewSecretValue: kubeSecrets[currentSecretKey],
+							NewSecretValue: processedSecrets[currentSecretKey],
 							ProjectID:      destination.ProjectID,
 							Environment:    destination.EnvironmentSlug,
 							SecretPath:     destination.SecretsPath,
@@ -353,7 +398,7 @@ func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context
 							continue
 						}
 
-						updateExistingSecretByKey(currentSecretKey, kubeSecrets[currentSecretKey])
+						updateExistingSecretByKey(currentSecretKey, processedSecrets[currentSecretKey])
 						infisicalPushSecret.Status.ManagedSecrets[updatedSecret.ID] = currentSecretKey
 					}
 				}
@@ -361,7 +406,7 @@ func (r *InfisicalPushSecretReconciler) ReconcileInfisicalPushSecret(ctx context
 		}
 
 		// Check if any of the existing secrets values have changed
-		for secretKey, secretValue := range kubeSecrets {
+		for secretKey, secretValue := range processedSecrets {
 
 			existingSecret := getExistingSecretByKey(secretKey)
 

k8-operator/controllers/infisicalsecret/infisicalsecret_helper.go

@@ -3,7 +3,6 @@ package controllers
 import (
 	"bytes"
 	"context"
-	"encoding/base64"
 	"errors"
 	"fmt"
 	"strings"
@@ -156,16 +155,6 @@ func (r *InfisicalSecretReconciler) getInfisicalServiceAccountCredentialsFromKub
 	return model.ServiceAccountDetails{AccessKey: string(accessKeyFromSecret), PrivateKey: string(privateKeyFromSecret), PublicKey: string(publicKeyFromSecret)}, nil
 }
 
-var infisicalSecretTemplateFunctions = template.FuncMap{
-	"decodeBase64ToBytes": func(encodedString string) string {
-		decoded, err := base64.StdEncoding.DecodeString(encodedString)
-		if err != nil {
-			panic(fmt.Sprintf("Error: %v", err))
-		}
-		return string(decoded)
-	},
-}
-
 func convertBinaryToStringMap(binaryMap map[string][]byte) map[string]string {
 	stringMap := make(map[string]string)
 	for k, v := range binaryMap {
@@ -177,7 +166,7 @@ func convertBinaryToStringMap(binaryMap map[string][]byte) map[string]string {
 func (r *InfisicalSecretReconciler) createInfisicalManagedKubeResource(ctx context.Context, logger logr.Logger, infisicalSecret v1alpha1.InfisicalSecret, managedSecretReferenceInterface interface{}, secretsFromAPI []model.SingleEnvironmentVariable, ETag string, resourceType constants.ManagedKubeResourceType) error {
 	plainProcessedSecrets := make(map[string][]byte)
 
-	var managedTemplateData *v1alpha1.InfisicalSecretTemplate
+	var managedTemplateData *v1alpha1.SecretTemplate
 
 	if resourceType == constants.MANAGED_KUBE_RESOURCE_TYPE_SECRET {
 		managedTemplateData = managedSecretReferenceInterface.(v1alpha1.ManagedKubeSecretConfig).Template
@@ -201,7 +190,7 @@ func (r *InfisicalSecretReconciler) createInfisicalManagedKubeResource(ctx conte
 		}
 
 		for templateKey, userTemplate := range managedTemplateData.Data {
-			tmpl, err := template.New("secret-templates").Funcs(infisicalSecretTemplateFunctions).Parse(userTemplate)
+			tmpl, err := template.New("secret-templates").Funcs(util.InfisicalSecretTemplateFunctions).Parse(userTemplate)
 			if err != nil {
 				return fmt.Errorf("unable to compile template: %s [err=%v]", templateKey, err)
 			}
@@ -322,7 +311,7 @@ func (r *InfisicalSecretReconciler) updateInfisicalManagedKubeSecret(ctx context
 		}
 
 		for templateKey, userTemplate := range managedTemplateData.Data {
-			tmpl, err := template.New("secret-templates").Funcs(infisicalSecretTemplateFunctions).Parse(userTemplate)
+			tmpl, err := template.New("secret-templates").Funcs(util.InfisicalSecretTemplateFunctions).Parse(userTemplate)
 			if err != nil {
 				return fmt.Errorf("unable to compile template: %s [err=%v]", templateKey, err)
 			}
@@ -373,7 +362,7 @@ func (r *InfisicalSecretReconciler) updateInfisicalManagedConfigMap(ctx context.
 		}
 
 		for templateKey, userTemplate := range managedTemplateData.Data {
-			tmpl, err := template.New("secret-templates").Funcs(infisicalSecretTemplateFunctions).Parse(userTemplate)
+			tmpl, err := template.New("secret-templates").Funcs(util.InfisicalSecretTemplateFunctions).Parse(userTemplate)
 			if err != nil {
 				return fmt.Errorf("unable to compile template: %s [err=%v]", templateKey, err)
 			}

k8-operator/packages/util/template.go

@@ -0,0 +1,20 @@
+package util
+
+import (
+	"encoding/base64"
+	"fmt"
+	"text/template"
+)
+
+var InfisicalSecretTemplateFunctions = template.FuncMap{
+	"decodeBase64ToBytes": func(encodedString string) string {
+		decoded, err := base64.StdEncoding.DecodeString(encodedString)
+		if err != nil {
+			panic(fmt.Sprintf("Error: %v", err))
+		}
+		return string(decoded)
+	},
+	"encodeBase64": func(plainString string) string {
+		return base64.StdEncoding.EncodeToString([]byte(plainString))
+	},
+}