Storage service helm chart integration + bugfixes (#315)

Add storage service and a persistent volume claim to helm charts. A few bugfixes for the api proxy.

charts/fission-all/templates/deployment.yaml

@@ -484,3 +484,36 @@ spec:
         - name: MESSAGE_QUEUE_URL
           value: nats://{{ .Values.nats.authToken }}@nats-streaming:4222
       serviceAccount: fission-svc
+
+---
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: storagesvc
+  labels:
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        svc: storagesvc
+    spec:
+      containers:
+      - name: storagesvc
+        image: "{{ .Values.image }}:{{ .Values.imageTag }}"
+        imagePullPolicy: {{ .Values.pullPolicy }}
+        command: ["/fission-bundle"]
+        args: ["--storageServicePort", "8000", "--filePath", "/fission"]
+        volumeMounts:
+        - name: fission-storage
+          mountPath: /fission
+      serviceAccount: fission-svc
+      volumes:
+      - name: fission-storage
+      {{- if .Values.persistence.enabled }}   
+        persistentVolumeClaim:
+          claimName: {{ .Values.persistence.existingClaim | default "fission-storage-pvc" }}
+      {{- else }}
+        emptyDir: {}
+      {{- end -}}

charts/fission-all/templates/pvc.yaml

@@ -0,0 +1,23 @@
+{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: fission-storage-pvc
+  labels:
+    app: fission-storage
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+  annotations:
+  {{- if .Values.persistence.storageClass }}
+    volume.beta.kubernetes.io/storage-class: {{ .Values.persistence.storageClass | quote }}
+  {{- else }}
+    volume.alpha.kubernetes.io/storage-class: default
+  {{- end }}
+spec:
+  accessModes:
+    - {{ .Values.persistence.accessMode | quote }}
+  resources:
+    requests:
+      storage: {{ .Values.persistence.size | quote }}
+
+{{- end }}

charts/fission-all/templates/svc.yaml

@@ -65,3 +65,18 @@ spec:
   selector:
     svc: nats-streaming
 
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: storagesvc
+  labels:
+    svc: storagesvc
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+spec:
+  type: ClusterIP
+  ports:
+  - port: 80
+    targetPort: 8000
+  selector:
+    svc: storagesvc

charts/fission-all/values.yaml

@@ -48,3 +48,13 @@ nats:
   authToken: "defaultFissionAuthToken"
   clusterID: "fissionMQTrigger"
   
+
+## Persist data to a persistent volume.
+persistence:
+  enabled: true
+  ## If defined, volume.beta.kubernetes.io/storage-class: <storageClass>
+  ## Default: volume.alpha.kubernetes.io/storage-class: default
+  ##
+  # storageClass:
+  accessMode: ReadWriteOnce
+  size: 8Gi