Deploy Wordpress to Kubernetes cluster

wp.yaml

apiVersion: v1
kind: Secret
metadata:
  name: mariadb-secret
  namespace: default
  labels:
    app: wordpress
stringData:
  MYSQL_ROOT_PASSWORD: dbroot
  MYSQL_USER: dbuser
  MYSQL_PASSWORD: dbpass
  MYSQL_DATABASE: wordpress
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mariadb-pvc
  namespace: default
  labels:
    app: wordpress
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: wordpress-pvc
  namespace: default
  labels:
    app: wordpress
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi
---

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mariadb
  namespace: default
  labels:
    app: wordpress
spec:
  serviceName: mariadb
  replicas: 1
  selector:
    matchLabels:
      app: mariadb
  template:
    metadata:
      labels:
        app: mariadb
    spec:
      containers:
        - name: mariadb
          image: mariadb:latest
          env:
            - name: MYSQL_ROOT_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_ROOT_PASSWORD
            - name: MYSQL_USER
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_USER
            - name: MYSQL_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_PASSWORD
            - name: MYSQL_DATABASE
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_DATABASE
          ports:
            - containerPort: 3306
          volumeMounts:
            - name: mariadb-storage
              mountPath: /var/lib/mysql
      volumes:
        - name: mariadb-storage
          persistentVolumeClaim:
            claimName: mariadb-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: mariadb
  namespace: default
  labels:
    app: wordpress
spec:
  ports:
    - port: 3306
      targetPort: 3306
  selector:
    app: mariadb
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress
  namespace: default
  labels:
    app: wordpress
spec:
  replicas: 2
  selector:
    matchLabels:
      app: wordpress
  template:
    metadata:
      labels:
        app: wordpress
    spec:
      containers:
        - name: wordpress
          image: wordpress:latest
          env:
            - name: WORDPRESS_DB_HOST
              value: mariadb
            - name: WORDPRESS_DB_USER
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_USER
            - name: WORDPRESS_DB_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_PASSWORD
          ports:
            - containerPort: 80
          volumeMounts:
            - name: wordpress-storage
              mountPath: /var/www/html
      volumes:
        - name: wordpress-storage
          persistentVolumeClaim:
            claimName: wordpress-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: wordpress
  namespace: default
  labels:
    app: wordpress
spec:
  ports:
    - port: 80
      targetPort: 80
  selector:
    app: wordpress
---

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: wordpress-ingress
spec:
  rules:
    - http:
        paths:
          - pathType: Prefix
            path: /
            backend:
              service:
                name: wordpress
                port:
                  number: 80