support for GOOGLE_APPLICATION_CREDENTIALS

chart/keel/templates/deployment.yaml

@@ -21,7 +21,15 @@ spec:
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           command: ["/bin/keel"]
+          volumeMounts:
+            - name: google
+              mountPath: "/google"
+              readOnly: true
           env:
+{{- if .Values.googleApplicationCredentials }}
+            - name: GOOGLE_APPLICATION_CREDENTIALS
+              value: /google/google-application-credentials.json
+{{- end }}
 {{- if .Values.polling.enabled }}
             # Enable polling
             - name: POLL
@@ -104,3 +112,9 @@ spec:
 {{- end }}
       nodeSelector:
 {{ toYaml .Values.nodeSelector | indent 8 }}
+{{- if .Values.googleApplicationCredentials }}
+      volumes:
+        - name: google
+          secret:
+            secretName: {{ template "name" . }}-google
+{{- end }}

chart/keel/templates/secrets-google.yaml

@@ -0,0 +1,15 @@
+{{- if .Values.googleApplicationCredentials }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ template "name" . }}-google
+  namespace: kube-system
+  labels:
+    app: {{ template "name" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+type: Opaque
+data:
+  google-application-credentials.json: {{ .Values.googleApplicationCredentials | b64enc | quote }}
+{{- end }}

chart/keel/values.yaml

@@ -99,3 +99,6 @@ resources:
 
 # NodeSelector
 nodeSelector: {}
+
+# json of service account
+# googleApplicationCredentials: