simple app template

gistfile1.txt

apiVersion: v1
kind: ConfigMap
metadata:
  name: wp-config-{{.Release.Name}}
data:
  mysql_root_password: {{.Values.mysqlPassword}}
  wordpress_db_password: {{.Values.wordpressPassword}}

---

apiVersion: v1
kind: Service
metadata:
  name: mysql-{{.Release.Name}}
  labels:
    app: wordpress
spec:
  ports:
    - port: 3306
  selector:
    app: wordpress
    tier: mysql
  clusterIP: None

---

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pvc-{{.Release.Name}}
  labels:
    app: wordpress
spec:
  storageClassName: ceph
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 20Gi

---

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mysql-{{.Release.Name}}
  labels:
    app: wordpress
spec:
  serviceName: mysql
  replicas: 1
  selector:
    matchLabels:
      app: wordpress
      tier: mysql
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: wordpress
        tier: mysql
    spec:
      containers:
      - image: mysql:5.6
        name: mysql
        resources:
          limits:
            cpu: "1"
            memory: 1Gi
        env:
        - name: MYSQL_ROOT_PASSWORD
          valueFrom:
            configMapKeyRef:
              name: wp-config-{{.Release.Name}}
              key: mysql_root_password
        ports:
        - containerPort: 3306
          name: mysql
        volumeMounts:
        - name: mysql-persistent-storage
          mountPath: /var/lib/mysql
      volumes:
      - name: mysql-persistent-storage
        persistentVolumeClaim:
          claimName: mysql-pvc-{{.Release.Name}}

---

apiVersion: v1
kind: Service
metadata:
  name: wp-{{.Release.Name}}
  labels:
    app: wordpress
spec:
  ports:
    - port: 80
  selector:
    app: wordpress
    tier: frontend
  type: ClusterIP

---

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: wp-{{.Release.Name}}
  annotations:
    qiniu.com/ingress-type: alb
spec:
  rules:
  - host: {{.Release.Name}}.cloudapp.com
    http:
      paths:
      - backend:
          serviceName: wp-{{.Release.Name}}
          servicePort: 80
        path: /

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress-{{.Release.Name}}
  labels:
    app: wordpress
spec:
  replicas: {{.Values.wordpressReplicas}}
  selector:
    matchLabels:
      app: wordpress
      tier: frontend
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: wordpress
        tier: frontend
    spec:
      containers:
      - image: wordpress:4.8-apache
        name: wordpress
        resources:
          limits:
            cpu: "1"
            memory: 1Gi
        env:
        - name: WORDPRESS_DB_HOST
          value: mysql-{{.Release.Name}}
        - name: WORDPRESS_DB_PASSWORD
          valueFrom:
            configMapKeyRef:
              name: wp-config-{{.Release.Name}}
              key: wordpress_db_password
        ports:
        - containerPort: 80
          name: wordpress

variables

mysqlPassword - root123
wordpressPassword - root123
wordpressReplicas - 2