mysql k8s descriptors

create-secret.sh

#!/bin/bash

if [ -z "$DB_PASS" ]; then
  echo "DB_PASS environment variable unset"
  exit 1
fi

kubectl create secret generic mysql-pass --from-literal=password=$DB_PASS 

mysql-ss.yml

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: mariadb:10.1
          env: 
            - name: MYSQL_ROOT_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mysql-pass
                  key: password
          ports:
            - containerPort: 3306
              name: db
          volumeMounts:
            - name: data
              mountPath: /var/lib/mysql
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes: ["ReadWriteOnce"]
        resources:
          requests:
            storage: 5Gi

mysql-svc.yml

apiVersion: v1
kind: Service
metadata:
  name: mysql
  labels:
    app: mysql
spec:
  ports:
    - port: 3306
  clusterIP: None
  selector:
    app: mysql