This is wordpress on Kubernetes

wordpress-deployment.yml

# https://d33wubrfki0l68.cloudfront.net/94cf9fb38535eaa5bfe33db5b23409841b8f7d03/654d8/blog/2017/my-blog-on-kubernetes/screenshot-dex-tweet-blog-on-kubernetes.png
---
apiVersion: v1
kind: Namespace
metadata:
  name: wordpress
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: config
  namespace: wordpress
data:
  db_name: wordpress
  db_user: wordpress
  db_password: qwerty
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: db
  namespace: wordpress
  labels:
    app_component: database
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app_component: database
  template:
    metadata:
      labels:
        app_component: database
    spec:
      containers:
        - name: mysql
          image: mysql:5.7
          resources:
            limits:
              memory: 600Mi
            requests:
              cpu: 100m
              memory: 100Mi
          livenessProbe:
            tcpSocket:
              port: 3306
            initialDelaySeconds: 15
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 5
          readinessProbe:
            tcpSocket:
              port: 3306
            initialDelaySeconds: 15
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 5
          env:
            - name: MYSQL_DATABASE
              valueFrom:
                configMapKeyRef:
                  name: config
                  key: db_name
            - name: MYSQL_USER
              valueFrom:
                configMapKeyRef:
                  name: config
                  key: db_user
            - name: MYSQL_PASSWORD
              valueFrom:
                configMapKeyRef:
                  name: config
                  key: db_password
            - name: MYSQL_ALLOW_EMPTY_PASSWORD
              value: "1"
          ports:
            - containerPort: 3306
              name: db
              protocol: TCP
          volumeDevices:
            - devicePath: /var/lib/mysql
              name: empty
      volumes:
        - name: empty
          emptyDir:
            sizeLimit: 100Mi
---
apiVersion: v1
kind: Service
metadata:
  name: db
  namespace: wordpress
spec:
  selector:
    app_component: database
#  clusterIP: 10.11.201.254
  ports:
  - name: mysql
    port: 3306
    targetPort: 3306
    protocol: TCP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: web
  namespace: wordpress
  labels:
    app_component: wordpress
spec:
  replicas: 1
  strategy:
    type: RollingUpdate
  selector:
    matchLabels:
      app_component: wordpress
  template:
    metadata:
      labels:
        app_component: wordpress
    spec:
      containers:
        - name: wordpress
          image: wordpress
          resources:
            limits:
              memory: 600Mi
            requests:
              cpu: 100m
              memory: 100Mi
          livenessProbe:
            httpGet:
              port: 80
              path: /robots.txt
            initialDelaySeconds: 15
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 5
            periodSeconds: 60
          readinessProbe:
            httpGet:
              port: 80
              path: /robots.txt
            initialDelaySeconds: 15
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 30
            periodSeconds: 60
          env:
            - name: WORDPRESS_DB_HOST
              value: "$(DB_SERVICE_HOST)"
            - name: WORDPRESS_DB_USER
              valueFrom:
                configMapKeyRef:
                  name: config
                  key: db_user
            - name: WORDPRESS_DB_PASSWORD
              valueFrom:
                configMapKeyRef:
                  name: config
                  key: db_password
            - name: WORDPRESS_DB_BNAME
              valueFrom:
                configMapKeyRef:
                  name: config
                  key: db_name
          ports:
            - containerPort: 80
              name: web
---
apiVersion: v1
kind: Service
metadata:
  name: web
  namespace: wordpress
spec:
  selector:
    app_component: wordpress
#  clusterIP: 10.11.201.254
  ports:
  - name: web
    port: 80
    targetPort: 80
    protocol: TCP
  type: NodePort