roles/percona_xtradb_cluster/vars/main.yml

_percona_xtradb_cluster_spec:
  crVersion: "1.13.0"
  secretsName: percona-xtradb
  pxc:
    size: 3
    image: "{{ atmosphere_images['percona_xtradb_cluster'] | vexxhost.kubernetes.docker_image('ref') }}"
    autoRecovery: true
    configuration: |
      [mysqld]
      max_connections=8192
      innodb_buffer_pool_size=4096M
      max_allowed_packet=16M
      # Skip reverse DNS lookup of clients
      skip-name-resolve
      pxc_strict_mode=MASTER
    sidecars:
      - name: exporter
        image: "{{ atmosphere_images['prometheus_mysqld_exporter'] | vexxhost.kubernetes.docker_image('ref') }}"
        args:
          - --mysqld.username=monitor
        env:
          - name: MYSQLD_EXPORTER_PASSWORD
            valueFrom:
              secretKeyRef:
                name: percona-xtradb
                key: monitor
        ports:
          - name: metrics
            containerPort: 9104
        livenessProbe:
          httpGet:
            port: metrics
            path: /
    nodeSelector:
      openstack-control-plane: enabled
    volumeSpec:
      persistentVolumeClaim:
        resources:
          requests:
            storage: 160Gi
  haproxy:
    enabled: true
    size: 3
    image: "{{ atmosphere_images['percona_xtradb_cluster_haproxy'] | vexxhost.kubernetes.docker_image('ref') }}"
    nodeSelector:
      openstack-control-plane: enabled
    configuration: |
      global
        maxconn 8192
        external-check
        insecure-fork-wanted
        stats socket /etc/haproxy/pxc/haproxy.sock mode 600 expose-fd listeners level admin

      defaults
        default-server init-addr last,libc,none
        log global
        mode tcp
        retries 10
        timeout client 28800s
        timeout connect 100500
        timeout server 28800s

      frontend galera-in
        bind *:3309 accept-proxy
        bind *:3306
        mode tcp
        option clitcpka
        default_backend galera-nodes

      frontend galera-admin-in
        bind *:33062
        mode tcp
        option clitcpka
        default_backend galera-admin-nodes

      frontend galera-replica-in
        bind *:3307
        mode tcp
        option clitcpka
        default_backend galera-replica-nodes

      frontend galera-mysqlx-in
        bind *:33060
        mode tcp
        option clitcpka
        default_backend galera-mysqlx-nodes

      frontend stats
        bind *:8404
        mode http
        http-request use-service prometheus-exporter if { path /metrics }