guestbook k8s deplotment example. a simple example with classic website and session storage by redis. no persistent volumns.

guestbook-ingress.yaml

---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: lbc-guestbook
spec:
  rules:
  - host: lbc-guestbook.default.10.202.15.4.xip.io  # change the hostname to yours
    http:
      paths:
      - backend:
          serviceName: frontend
          servicePort: 80
        path: /
  - host: lbc-guestbook.default.10.202.15.5.xip.io  # change the hostname to yours
    http:
      paths:
      - backend:
          serviceName: frontend
          servicePort: 80
        path: /

guestbook-redis.yaml

---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: redis-master
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: redis
        role: master
        tier: backend
    spec:
      containers:
      - name: master  
        image: redis
        resources:
          requests:
            cpu: 100m
            memory: 100Mi
        ports:
        - containerPort: 6379
---
apiVersion: v1
kind: Service
metadata:
  name: redis-master
  labels:
    app: redis
    role: master
    tier: backend
spec:
  ports:
  - port: 6379
    targetPort: 6379
  selector:
    app: redis
    role: master
    tier: backend
---
apiVersion: v1
kind: Service
metadata:
  name: redis-master-nodeport
  labels:
    app: redis
    role: master
    tier: backend
spec:
  type: NodePort
  ports:
  - port: 6379
    nodePort: 30000
  selector:
    app: redis
    role: master
    tier: backend
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: redis-slave
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: redis
        role: slave
        tier: backend
    spec:
      containers:
      - name: slave
        image: redis
        args:
        - "--slaveof redis-master 6379"  # slave节点需要加上参数，redis-master为master节点的域名
        resources:
          requests:
            cpu: 100m
            memory: 100Mi
        ports:
        - containerPort: 6379
---
apiVersion: v1
kind: Service
metadata:
  name: redis-slave
  labels:
    app: redis
    role: slave
    tier: backend
spec:
  ports:
  - port: 6379
  selector:
    app: redis
    role: slave
    tier: backend

guestbook-website.yaml

---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: frontend
spec:
  replicas: 3
  template:
    metadata:
      labels:
        app: guestbook
        tier: frontend
    spec:
      containers:
      - name: php-guestbook
        image: kubeguide/guestbook-php-frontend
        resources:
          requests:
            cpu: 100m
            memory: 100Mi
        env:
        - name: GET_HOSTS_FROM  # 默认使用redis-master作为redis master节点的域名
          value: dns
          # If your cluster config does not include a dns service, then to
          # instead access environment variables to find service host
          # info, comment out the 'value: dns' line above, and uncomment the
          # line below:
          # value: env
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: frontend
  labels:
    app: guestbook
    tier: frontend
spec:
  # if your cluster supports it, uncomment the following to automatically create
  # an external load-balanced IP for the frontend service.
  # type: LoadBalancer
  ports:
  - port: 80
  selector:
    app: guestbook
    tier: frontend