[stable/minio] Support for Minio GCS gateway (#4668)

* support for using minio as GCS gateway

* increment of version number

* bump minor version

stable/minio/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: Distributed object storage server built for cloud applications and devops.
 name: minio
-version: 1.0.1
+version: 1.1.0
 appVersion: RELEASE.2018-03-16T22-52-12Z
 keywords:
 - storage

stable/minio/README.md

@@ -104,6 +104,11 @@ The following tables lists the configurable parameters of the Minio chart and th
 | `defaultBucket.policy`     | Bucket policy                       | `none`                                                  |
 | `defaultBucket.purge`      | Purge the bucket if already exists  | `false`                                                 |
 | `azuregateway.enabled`     | Use minio as an [azure gateway](https://docs.minio.io/docs/minio-gateway-for-azure)| `false`  |
+| `gcsgateway.enabled`       | Use minio as a [Google Cloud Storage gateway](https://docs.minio.io/docs/minio-gateway-for-gcs)| `false`  |
+| `gcsgateway.gcsKeyJson`    | credential json file of service account key | `""`
+      |
+| `gcsgateway.projectId`     | Google cloud project id             | `""`
+      |
 
 Some of the parameters above map to the env variables defined in the [Minio DockerHub image](https://hub.docker.com/r/minio/minio/).
 

stable/minio/templates/deployment.yaml

@@ -30,12 +30,16 @@ spec:
           {{- if .Values.azuregateway.enabled }}
           args: ["gateway", "azure"]
           {{- else }}
+          {{- if .Values.gcsgateway.enabled }}
+          args: ["gateway", "gcs", "{{ .Values.gcsgateway.projectId }}"]
+          {{- else }}
           {{- if .Values.configPath }}
           args: ["-C", "{{ .Values.configPath }}", "server", "{{ .Values.mountPath }}"]
           {{- else }}
           args: ["server", "{{ .Values.mountPath }}"]
           {{- end }}
           {{- end }}
+          {{- end }}
           volumeMounts:
             - name: export
               mountPath: {{ .Values.mountPath }}
@@ -51,6 +55,11 @@ spec:
             - name: podinfo
               mountPath: /podinfo
               readOnly: false
+            {{- if .Values.gcsgateway.enabled }}
+            - name: minio-user
+              mountPath: "/etc/credentials"
+              readOnly: true
+            {{- end }}
           ports:
             - name: service
               containerPort: 9000
@@ -65,6 +74,10 @@ spec:
                 secretKeyRef:
                   name: {{ template "minio.fullname" . }}
                   key: secretkey
+            {{- if .Values.gcsgateway.enabled }}
+            - name: GOOGLE_APPLICATION_CREDENTIALS
+              value: "/etc/credentials/gcs_key.json"
+            {{- end }}
           livenessProbe:
             tcpSocket:
               port: 9000

stable/minio/templates/secrets.yaml

@@ -11,3 +11,6 @@ type: Opaque
 data:
   accesskey: {{ .Values.accessKey | b64enc }}
   secretkey: {{ .Values.secretKey | b64enc }}
+{{- if .Values.gcsgateway.enabled }}
+  gcs_key.json: {{ .Values.gcsgateway.gcsKeyJson | b64enc }}
+{{- end }}

stable/minio/values.yaml

@@ -100,6 +100,16 @@ defaultBucket:
 azuregateway:
   enabled: false
 
+## Use minio as GCS (Google Cloud Storage) gateway, you should disable data persistence so no volume claim are created.
+## https://docs.minio.io/docs/minio-gateway-for-gcs
+
+gcsgateway:
+  enabled: false
+  # credential json file of service account key
+  gcsKeyJson: ""
+  # Google cloud project-id
+  projectId: ""
+
 ## https://docs.minio.io/docs/minio-bucket-notification-guide
 ##
 minioConfig: