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|
---
- name: Create MariaDB volume
become: true
kolla_container:
action: "create_volume"
common_options: "{{ docker_common_options }}"
name: "mariadb"
register: mariadb_volume
when: migration_flag is not defined
- name: Divide hosts by their MariaDB volume availability
group_by:
key: "{{ mariadb_shard_group }}_had_volume_{{ mariadb_volume is not changed }}"
changed_when: false
- name: Establish whether the cluster has already existed
set_fact:
mariadb_cluster_exists: "{{ groups[mariadb_shard_group + '_had_volume_True'] is defined }}"
- block:
- name: Check MariaDB service port liveness
wait_for:
host: "{{ api_interface_address }}"
port: "{{ mariadb_port }}"
connect_timeout: 1
timeout: 10
search_regex: "MariaDB"
register: check_mariadb_port_liveness
ignore_errors: yes
- name: Divide hosts by their MariaDB service port liveness
group_by:
key: "{{ mariadb_shard_group }}_port_alive_{{ check_mariadb_port_liveness is success }}"
changed_when: false
- name: Fail on existing but stopped cluster
fail:
msg: MariaDB cluster exists but is stopped. Please start it using kolla-ansible mariadb_recovery
when:
# NOTE(yoctozepto): we allow single-node cluster to start
- groups[mariadb_shard_group] | length > 1
- mariadb_cluster_exists
- groups[mariadb_shard_group + '_port_alive_True'] is not defined
- block:
- name: Check MariaDB service WSREP sync status
become: true
kolla_toolbox:
container_engine: "{{ kolla_container_engine }}"
module_name: mysql_query
module_args:
login_db: "mysql"
login_host: "{{ api_interface_address }}"
login_port: "{{ mariadb_port }}"
login_user: "{{ database_user }}"
login_password: "{{ database_password }}"
query: 'SHOW STATUS LIKE "wsrep_local_state_comment"'
check_mode: false
register: check_mariadb_sync_status
- name: Extract MariaDB service WSREP sync status
set_fact:
mariadb_sync_status: "{{ check_mariadb_sync_status.query_result[0][0]['Value'] }}"
when:
- groups[mariadb_shard_group + '_port_alive_True'] is defined
- inventory_hostname in groups[mariadb_shard_group + '_port_alive_True']
- name: Divide hosts by their MariaDB service WSREP sync status
group_by:
key: "{{ mariadb_shard_group }}_sync_status_{{ mariadb_sync_status | default('NA') }}"
changed_when: false
- name: Fail when MariaDB services are not synced across the whole cluster
fail:
msg: MariaDB cluster is not synced. Please wait for WSREP sync before proceeding.
when:
- groups[mariadb_shard_group + '_port_alive_True'] is defined
- groups[mariadb_shard_group + '_sync_status_Synced'] is not defined or
groups[mariadb_shard_group + '_port_alive_True'] | sort != groups[mariadb_shard_group + '_sync_status_Synced'] | sort
when: not mariadb_recover | default(False)
|
