apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  hostPath:
    path: /tmp/todo-mysql-data
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pvc
  namespace: todo-app
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: mysql-init-script
  namespace: todo-app
data:
  init.sql: |
    CREATE TABLE IF NOT EXISTS users (
        id INT AUTO_INCREMENT PRIMARY KEY,
        username VARCHAR(100) NOT NULL UNIQUE,
        password VARCHAR(255) NOT NULL
    );

    CREATE TABLE IF NOT EXISTS tasks (
        id INT AUTO_INCREMENT PRIMARY KEY,
        user_id INT NOT NULL,
        title VARCHAR(255) NOT NULL,
        description TEXT NOT NULL,
        deadline DATE NOT NULL,
        status TINYINT(1) NOT NULL DEFAULT 0,
        FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
    );
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: db
  namespace: todo-app
spec:
  serviceName: db
  replicas: 1
  selector:
    matchLabels:
      app: db
  template:
    metadata:
      labels:
        app: db
    spec:
      containers:
        - name: mysql
          image: mysql:8.0
          ports:
            - containerPort: 3306
          env:
            - name: MYSQL_ROOT_PASSWORD
              value: "NajsilnejsieHeslo123."
            - name: MYSQL_DATABASE
              value: "zkt_zadanie"
            - name: MYSQL_USER
              value: "todo_user"
            - name: MYSQL_PASSWORD
              value: "SilneHeslo123."
          volumeMounts:
            - name: mysql-storage
              mountPath: /var/lib/mysql
            - name: mysql-init-volume
              mountPath: /docker-entrypoint-initdb.d/init.sql
              subPath: init.sql
      volumes:
        - name: mysql-storage
          persistentVolumeClaim:
            claimName: mysql-pvc
        - name: mysql-init-volume
          configMap:
            name: mysql-init-script