apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mysql-questionbank
spec:
  replicas: 1
  serviceName: mysql-questionbank
  selector:
    matchLabels:
      app: mysql-questionbank
  template:
    metadata:
      labels:
        app: mysql-questionbank
    spec:
      initContainers:
        - name: init
          image: busybox
          imagePullPolicy: IfNotPresent
          command: 
          - sh
          - -c 
          - |
            sysctl -w net.ipv4.tcp_keepalive_time=300
            sysctl -w net.ipv4.tcp_keepalive_intvl=10
            sysctl -w net.ipv4.tcp_keepalive_probes=3
          securityContext:
            privileged: true
      containers:
      - name: mysql-questionbank
        image: mysql:8.0.33
        args: ["--character-set-server=utf8mb4", "--collation-server=utf8mb4_unicode_ci", "--max_connections=4000", "--binlog_expire_logs_seconds=432000","--sql_mode=STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION","--lower_case_table_names=1"]
        ports:
        - containerPort: 3306
        volumeMounts:
        - name: mysql-data-questionbank
          mountPath: /var/lib/mysql
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: "Beaconfire@2099"
      volumes:
      - name: mysql-data-questionbank
        hostPath:
          path: /data/prod/mysql-questionbank
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                - key: "kubernetes.io/hostname"
                  operator: In
                  values:
                  - bfs-k8snode-10-2-2-8.hetzner.base.beaconfireinc.com
---
apiVersion: v1
kind: Service
metadata:
  name: mysql-questionbank
  labels:
    app: mysql-questionbank
spec:
  ports:
  - protocol: TCP
    port: 3306
    targetPort: 3306
    nodePort: 30336
  selector:
    app: mysql-questionbank
  type: NodePort