quote all secret values

common/templates/_secret.tpl

@@ -11,6 +11,8 @@ metadata:
     {{- include "common.variables.labels" . | nindent 4 }}
 type: {{ .Values.type | default "Opaque" }}
 data:
-  {{- (include "common.secret.variables.data" .) | nindent 2 }}
+  {{- range $key, $value := (include "common.secret.variables.data" . | fromYaml) }}
+  {{ $key }}: {{ $value | quote }}
+  {{- end }}
 ---
 {{- end }}

example/values.yaml

@@ -28,8 +28,8 @@ secrets:
     name: example-secret1
     type: Opaque
     data:
-      username: example
-      password: example
+      username: "example"
+      password: 'example'
 
 volumes:
   persistentVolumes: