kolla-ansible/ansible/roles/mariadb/defaults/main.yml

---
mariadb_services:
  mariadb:
    container_name: mariadb
    group: "{{ mariadb_shard_group }}"
    enabled: true
    image: "{{ mariadb_image_full }}"
    volumes: "{{ mariadb_default_volumes + mariadb_extra_volumes }}"
    dimensions: "{{ mariadb_dimensions }}"
    healthcheck: "{{ mariadb_healthcheck }}"
    environment:
      MYSQL_USERNAME: "{{ mariadb_monitor_user }}"
      MYSQL_PASSWORD: "{% if enable_proxysql | bool %}{{ mariadb_monitor_password }}{% endif %}"
      MYSQL_HOST: "{{ api_interface_address }}"
      AVAILABLE_WHEN_DONOR: "1"
    haproxy:
      mariadb:
        enabled: "{{ enable_mariadb | bool and not enable_external_mariadb_load_balancer | bool }}"
        mode: "tcp"
        port: "{{ database_port }}"
        listen_port: "{{ mariadb_port }}"
        frontend_tcp_extra:
          - "option clitcpka"
          - "timeout client 3600s"
        backend_tcp_extra:
          - "option srvtcpka"
          - "timeout server 3600s"
          - "{% if enable_mariadb_clustercheck | bool %}option httpchk{% endif %}"
        custom_member_list: "{{ internal_haproxy_members.split(';') }}"
      mariadb_external_lb:
        enabled: "{{ enable_external_mariadb_load_balancer | bool }}"
        mode: "tcp"
        port: "{{ database_port }}"
        listen_port: "{{ mariadb_port }}"
        frontend_tcp_extra:
          - "option clitcpka"
          - "timeout client 3600s"
        backend_tcp_extra:
          - "option srvtcpka"
          - "timeout server 3600s"
        custom_member_list: "{{ external_haproxy_members.split(';') }}"
  mariadb-clustercheck:
    container_name: mariadb_clustercheck
    group: "{{ mariadb_shard_group }}"
    enabled: "{{ enable_mariadb_clustercheck | bool }}"
    image: "{{ mariadb_clustercheck_image_full }}"
    volumes: "{{ mariadb_clustercheck_default_volumes + mariadb_clustercheck_extra_volumes }}"
    dimensions: "{{ mariadb_clustercheck_dimensions }}"
    environment:
      MYSQL_USERNAME: "{{ mariadb_monitor_user }}"
      MYSQL_PASSWORD: "{% if enable_proxysql | bool %}{{ mariadb_monitor_password }}{% endif %}"
      MYSQL_HOST: "{{ api_interface_address }}"
      AVAILABLE_WHEN_DONOR: "1"

####################
# Database
####################
database_cluster_name: "openstack"
database_max_timeout: 120

####################
# HAProxy
####################
internal_haproxy_members: "{% for host in mariadb_default_database_shard_hosts %} server {{ hostvars[host].ansible_facts.hostname }} {{ 'api' | kolla_address(host) }}:{{ mariadb_port }} check port {% if enable_mariadb_clustercheck | bool %}{{ mariadb_clustercheck_port }}{% else %}{{ mariadb_port }}{% endif %} inter 2000 rise 2 fall 5{% if not loop.first %} backup{% endif %};{% endfor %}"
external_haproxy_members: "{% for host in mariadb_default_database_shard_hosts %} server {{ host }} {{ host }}:{{ mariadb_port }} check port {% if enable_mariadb_clustercheck | bool %}{{ mariadb_clustercheck_port }}{% else %}{{ mariadb_port }}{% endif %} inter 2000 rise 2 fall 5{% if not loop.first %} backup{% endif %};{% endfor %}"

####################
# Docker
####################
mariadb_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_namespace }}/mariadb-server"
mariadb_tag: "{{ openstack_tag }}"
mariadb_image_full: "{{ mariadb_image }}:{{ mariadb_tag }}"

mariadb_clustercheck_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_namespace }}/mariadb-clustercheck"
mariadb_clustercheck_tag: "{{ mariadb_tag }}"
mariadb_clustercheck_image_full: "{{ mariadb_clustercheck_image }}:{{ mariadb_clustercheck_tag }}"

mariadb_dimensions: "{{ default_container_dimensions }}"
mariadb_clustercheck_dimensions: "{{ default_container_dimensions }}"

mariadb_default_volumes:
  - "{{ node_config_directory }}/mariadb/:{{ container_config_directory }}/:ro"
  - "/etc/localtime:/etc/localtime:ro"
  - "{{ '/etc/timezone:/etc/timezone:ro' if ansible_facts.os_family == 'Debian' else '' }}"
  - "mariadb:/var/lib/mysql"
  - "kolla_logs:/var/log/kolla/"
mariadb_clustercheck_default_volumes:
  - "{{ node_config_directory }}/mariadb-clustercheck/:{{ container_config_directory }}/:ro"
  - "/etc/localtime:/etc/localtime:ro"
  - "{{ '/etc/timezone:/etc/timezone:ro' if ansible_facts.os_family == 'Debian' else '' }}"
  - "kolla_logs:/var/log/kolla/"

mariadb_extra_volumes: "{{ default_extra_volumes }}"
mariadb_clustercheck_extra_volumes: "{{ default_extra_volumes }}"

mariadb_enable_healthchecks: "{{ enable_container_healthchecks }}"
mariadb_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
mariadb_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
mariadb_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
mariadb_healthcheck_test: ["CMD-SHELL", "/usr/bin/clustercheck"]
mariadb_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
mariadb_healthcheck:
  interval: "{{ mariadb_healthcheck_interval }}"
  retries: "{{ mariadb_healthcheck_retries }}"
  start_period: "{{ mariadb_healthcheck_start_period }}"
  test: "{% if mariadb_enable_healthchecks | bool %}{{ mariadb_healthcheck_test }}{% else %}NONE{% endif %}"
  timeout: "{{ mariadb_healthcheck_timeout }}"

########################################
# Vars used within recover_cluster.yml
########################################
mariadb_service: "{{ mariadb_services['mariadb'] }}"
mariadb_recover_tmp_file_path: "/tmp/kolla_mariadb_recover_inventory_name_{{ mariadb_shard_name }}"

###############
# WSREP options
###############
mariadb_wsrep_extra_provider_options: []

####################
# Backups
####################
mariabackup_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_namespace }}/mariadb-server"
mariabackup_tag: "{{ mariadb_tag }}"
mariabackup_image_full: "{{ mariabackup_image }}:{{ mariabackup_tag }}"

mariadb_backup_host: "{{ groups[mariadb_shard_group][0] }}"
mariadb_backup_database_schema: "PERCONA_SCHEMA"
mariadb_backup_database_user: "{% if mariadb_loadbalancer == 'haproxy' %}backup{% else %}{{ mariadb_shard_backup_user_prefix }}{{ mariadb_shard_id | string }}{% endif %}"
mariadb_backup_type: "full"
mariadb_backup_possible: "{{ mariadb_loadbalancer != 'haproxy' or inventory_hostname in mariadb_default_database_shard_hosts }}"

####################
# Clustercheck
####################
enable_mariadb_clustercheck: "{{ enable_haproxy }}"

####################
# Sharding
####################
mariadb_shard_database_user: "{% if mariadb_loadbalancer == 'haproxy' %}{{ database_user }}{% else %}{{ mariadb_shard_root_user_prefix }}{{ mariadb_shard_id | string }}{% endif %}"
mariadb_database_shard: "{{ mariadb_shards_info }}"