apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mysql
spec:
  serviceName: "mysql"
  replicas: 1
  selector:
    matchLabels:
      app: mysql
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
        - name: mysql
          image: mysql:5.7
          env:
            - name: MYSQL_ROOT_PASSWORD
              value: "uNejHIFQGJOUtYTmE"
            - name: MYSQL_CHARACTER_SET_SERVER
              value: "utf8mb4"
            - name: MYSQL_COLLATION_SERVER
              value: "utf8mb4_unicode_ci"
          args:
            - "--character-set-server=utf8mb4"
            - "--collation-server=utf8mb4_unicode_ci"
          ports:
            - containerPort: 3306
          volumeMounts:
            - name: mysql-storage
              mountPath: /var/lib/mysql
              subPath: "mysql"
  volumeClaimTemplates:
    - metadata:
        name: mysql-storage
      spec:
        accessModes: [ "ReadWriteOnce" ]
        resources:
          requests:
            storage: 20Gi