add volumes and volumeMounts in chartutil

add:
- volumes in defaultValues
- volumes in defaultDeployment
- volumeMounts in defaultValues
- volumeMounts in defaultDeployment

pkg/chartutil/create.go

@@ -180,6 +180,19 @@ autoscaling:
   targetCPUUtilizationPercentage: 80
   # targetMemoryUtilizationPercentage: 80
 
+# Additional volumes on the output Deployment definition.
+volumes: []
+# - name: foo
+#   secret:
+#     secretName: mysecret
+#     optional: false
+
+# Additional volumeMounts on the output Deployment definition.
+volumeMounts: []
+# - name: foo
+#   mounthPath: "/etc/foo"
+#   readOnly: true
+
 nodeSelector: {}
 
 tolerations: []
@@ -324,6 +337,14 @@ spec:
               port: http
           resources:
             {{- toYaml .Values.resources | nindent 12 }}
+          {{- with .Values.volumeMounts }}
+          volumeMounts:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+      {{- with .Values.volumes }}
+      volumes:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}