ccyunchina-deploy/roles/proprietary-cloud/templates/database/mysql-cluster.yaml

apiVersion: mysql.presslabs.org/v1alpha1
kind: MysqlCluster
metadata:
  name: mysql-cluster
spec:
  replicas: {{groups['mysql']|length}}
  secretName: my-secret

  ## For setting custom docker image or specifying mysql version
  ## the image field has priority over mysqlVersion.
  image: {{BASE_IMAGE_URL}}/{{mysql_image}}
  mysqlVersion: "8.0"

  # initBucketURL: gs://bucket_name/backup.xtrabackup.gz
  # initBucketSecretName:

  ## PodDisruptionBudget
  # minAvailable: 1

  ## For recurrent backups set backupSchedule with a cronjob expression with seconds
  backupSchedule: "0 0 0 * * *"
  backupURL: local:/mysql-backup/
  # backupSecretName:
  backupScheduleJobsHistoryLimit: 10
  backupRemoteDeletePolicy: delete
  backupPVCSize: 8Gi
#  backupSaveDays: 11

  ## Custom Server ID Offset for replication
  # serverIDOffset: 100

  ## Configs that will be added to my.cnf for cluster
  mysqlConf:
    default-time-zone: '+08:00'
    max-connections: 1000
#    plugin-load: rpl_semi_sync_master=semisync_master.so
#    plugin-load-add: rpl_semi_sync_slave=semisync_slave.so
#    rpl-semi-sync-master-enabled: 'on'
#    rpl-semi-sync-slave-enabled: 'on'
    slave-skip-errors: all
    sql-mode: >-
      STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION      

  ## Specify additional pod specification
  # podSpec:
  #   imagePullSecrets: []
  #   labels: {}
  #   annotations: {}
  #   affinity:
  #     podAntiAffinity:
  #       preferredDuringSchedulingIgnoredDuringExecution:
  #         weight: 100
  #         podAffinityTerm:
  #           topologyKey: "kubernetes.io/hostname"
  #           labelSelector:
  #             matchlabels: <cluster-labels>
  #   backupAffinity: {}
  #   backupNodeSelector: {}
  #   backupPriorityClassName:
  #   backupTolerations: []
  #   # Override the default preStop hook with a custom command/script
  #   mysqlLifecycle:
  #     preStop:
  #       exec:
  #         command:
  #           - /scripts/demote-if-master
  #   nodeSelector: {}
  #   resources:
  #     requests:
  #       memory: 1G
  #       cpu:    200m
  #   tolerations: []
  #   priorityClassName:
  #   serviceAccountName: default
  #   # Use a initContainer to fix the permissons of a hostPath volume.
  #   initContainers:
  #     - name: volume-permissions
  #       image: busybox
  #       securityContext:
  #         runAsUser: 0
  #       command:
  #         - sh
  #         - -c
  #         - chmod 750 /data/mysql; chown 999:999 /data/mysql
  #       volumeMounts:
  #         - name: data
  #           mountPath: /data/mysql

  ## Specify additional volume specification
  volumeSpec:
  #   # https://godoc.org/k8s.io/api/core/v1#EmptyDirVolumeSource
  #   emptyDir: {}

  #   # https://godoc.org/k8s.io/api/core/v1#HostPathVolumeSource
  #   hostPath:
  #     path:
  #     type:

  #   # https://godoc.org/k8s.io/api/core/v1#PersistentVolumeClaimSpec
    persistentVolumeClaim:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Gi
      storageClassName: local-storage
      selector:
        matchLabels:
          pv: mysql-cluster

  ## Specify service objectives
  ## If thoses SLO are not fulfilled by cluster node then that node is
  ## removed from scheme
  # targetSLO:
  #   maxSlaveLatency: 10s

  ## You can use custom volume for /tmp partition if needed.
  ## Is disabled by default
  ## tmpfsSize: 1Gi

  ## Set cluster in read only
  # readOnly: false

  ## Use `pigz` for parallel compression/decompression of backups
  ## Or specify any arbitrary compress/decompress commands with args
  # backupCompressCommand:
  #   - pigz
  #   - --stdout
  #
  # backupDecompressCommand:
  #   - pigz
  #   - --decompress

  ## Add metrics exporter extra arguments
  # metricsExporterExtraArgs:
  #   - --collect.info_schema.userstats
  #   - --collect.perf_schema.file_events

  ## Add extra arguments to rclone
  # rcloneExtraArgs:
  #   - --buffer-size=1G
  #   - --multi-thread-streams=8
  #   - --retries-sleep=10s
  #   - --retries=10
  #   - --transfers=8

  ## Add extra arguments to xbstream
  # xbstreamExtraArgs:
  #   - --parallel=8

  ## Add extra arguments to xtrabackup
  # xtrabackupExtraArgs:
  #   - --parallel=8

  ## Add extra arguments to xtrabackup during --prepare
  # xtrabackupPrepareExtraArgs:
  #   - --use-memory=5G

  ## Set xtrabackup target directory (the directory needs to exist)
  # xtrabackupTargetDir: /var/lib/mysql/.tmp/xtrabackup/

  ## Add additional SQL commands to run during init of mysql
  initFileExtraSQL:
   - "CREATE USER 'greatwall'@'%' IDENTIFIED BY 'Greatwall8888' "
   - "CREATE DATABASE  IF NOT EXISTS `nacos` "
   - "GRANT ALL ON *.* TO 'greatwall'@'%' "

---
apiVersion: v1
kind: Secret
metadata:
  name: my-secret
type: Opaque
data:
  # Greatwall8888
  ROOT_PASSWORD: R3JlYXR3YWxsODg4OAo=

{% for node in  groups['mysql'] %}
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-cluster-{{hostvars[node].NODE_ID}}
  labels:
    pv: mysql-cluster
spec:
  accessModes:
  - ReadWriteOnce
  capacity:
    storage: 10Gi
  local:
    path: /data/mysql
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - "{{hostvars[node].NODE_ID}}"
  persistentVolumeReclaimPolicy: Retain
  storageClassName: local-storage
{% endfor %}