Added a new release for Kubernetes

Signed-off-by: hacor <hacornelis@gmail.com>

docs/kubernetes/1.6/mailu/redis.yaml

@@ -0,0 +1,56 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: mailu-redis
+  namespace: mailu-mailserver
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: mailu-redis
+        role: mail
+        tier: backend
+    spec:
+      containers:
+      - name: redis
+        image: redis:4.0-alpine
+        imagePullPolicy: Always
+        volumeMounts:
+          - mountPath: /data
+            name: redisdata
+        ports:
+          - containerPort: 6379
+            name: redis
+            protocol: TCP
+        resources:
+          requests:
+            memory: 200Mi
+            cpu: 100m
+          limits:
+            memory: 300Mi
+            cpu: 200m
+      volumes:
+        - name: redisdata
+          persistentVolumeClaim:
+            claimName: redis-hdd
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis
+  namespace: mailu-mailserver
+  labels:
+    app: mailu-redis
+    role: mail
+    tier: backend
+spec:
+  selector:
+    app: mailu-redis
+    role: mail
+    tier: backend
+  ports:
+  - name: redis
+    port: 6379
+    protocol: TCP