feat: Ability to specify existing secrets for values in Helm (#791)

Closes #790

charts/planka/Chart.yaml

@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.1.35
+version: 0.2.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

charts/planka/templates/deployment.yaml

@@ -90,17 +90,37 @@ spec:
               value: http://localhost:3000
               {{- end }}
             - name: SECRET_KEY
+              {{- if .Values.existingSecretkeySecret }}
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.existingSecretkeySecret }}
+                  key: key
+              {{- else }}
               value: {{ required "A secret key needs to be generated using 'openssl rand -hex 64' and assigned to secretkey." .Values.secretkey }}
+              {{- end }}
             - name: TRUST_PROXY
               value: "0"
             - name: DEFAULT_ADMIN_EMAIL
               value: {{ .Values.admin_email }}
-            - name: DEFAULT_ADMIN_PASSWORD
-              value: {{ .Values.admin_password }}
             - name: DEFAULT_ADMIN_NAME
               value: {{ .Values.admin_name }}
+            {{- if .Values.existingAdminCredsSecret }}
+            - name: DEFAULT_ADMIN_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.existingAdminCredsSecret }}
+                  key: username
+            - name: DEFAULT_ADMIN_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.existingAdminCredsSecret }}
+                  key: password
+            {{- else }}
             - name: DEFAULT_ADMIN_USERNAME
               value: {{ .Values.admin_username }}
+            - name: DEFAULT_ADMIN_PASSWORD
+              value: {{ .Values.admin_password }}
+            {{- end }}
           {{ range $k, $v := .Values.env }}
             - name: {{ $k | quote }}
               value: {{ $v | quote }}

charts/planka/values.yaml

@@ -17,6 +17,16 @@ fullnameOverride: ""
 # Generate a secret using openssl rand -base64 45
 secretkey: ""
 
+## @param existingSecretkeySecret Name of an existing secret containing the session key string
+## NOTE: Must contain key `key`
+## NOTE: When it's set, the secretkey parameter is ignored
+existingSecretkeySecret: ""
+
+## @param existingAdminCredsSecret Name of an existing secret containing the admin username and password
+## NOTE: Must contain keys `username` and `password`
+## NOTE: When it's set, the `admin_username` and `admin_password` parameters are ignored
+existingAdminCredsSecret: ""
+
 # Base url for Planka. Will override `ingress.hosts[0].host`
 # Defaults to `http://localhost:3000` if ingress is disabled.
 baseUrl: ""