9f14ad651a
These affected both deploy (and reconfigure) and upgrade resulting in WSREP issues, failed deploys or need to recover the cluster. This patch makes sure k-a does not abruptly terminate nodes to break cluster. This is achieved by cleaner separation between stages (bootstrap, restart current, deploy new) and 3 phases for restarts (to keep the quorum). Upgrade actions, which operate on a healthy cluster, went to its section. Service restart was refactored. We no longer rely on the master/slave distinction as all nodes are masters in Galera. Closes-bug: #1857908 Closes-bug: #1859145 Change-Id: I83600c69141714fc412df0976f49019a857655f5
66 lines
2.3 KiB
YAML
66 lines
2.3 KiB
YAML
---
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- name: Create MariaDB volume
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become: true
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kolla_docker:
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action: "create_volume"
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common_options: "{{ docker_common_options }}"
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name: "mariadb"
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register: mariadb_volume
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- name: Divide hosts by their MariaDB volume availability
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group_by:
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key: mariadb_had_volume_{{ mariadb_volume is not changed }}
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- name: Establish whether the cluster has already existed
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set_fact:
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mariadb_cluster_exists: "{{ groups.mariadb_had_volume_True is defined }}"
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- block:
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- name: Check MariaDB service port liveness
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wait_for:
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host: "{{ api_interface_address }}"
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port: "{{ mariadb_port }}"
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connect_timeout: 1
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timeout: 10
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search_regex: "MariaDB"
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register: check_mariadb_port_liveness
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ignore_errors: yes
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- name: Divide hosts by their MariaDB service port liveness
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group_by:
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key: mariadb_port_alive_{{ check_mariadb_port_liveness is success }}
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- block:
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- name: Check MariaDB service WSREP sync status
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become: true
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command: >-
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docker exec {{ mariadb_service.container_name }}
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mysql -uroot -p{{ database_password }}
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--silent --skip-column-names
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-e 'SHOW STATUS LIKE "wsrep_local_state_comment"'
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changed_when: false
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register: check_mariadb_sync_status
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no_log: true
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# NOTE(yoctozepto): this is extracted separately to properly escape
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# the TAB character which likes to go wrong due to interaction between
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# Python/Ansible/Jinja2/YAML, the way below works
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- name: Extract MariaDB service WSREP sync status
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set_fact:
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mariadb_sync_status: "{{ check_mariadb_sync_status.stdout.split('\t')[1] }}"
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- name: Divide hosts by their MariaDB service WSREP sync status
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group_by:
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key: mariadb_sync_status_{{ mariadb_sync_status }}
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- name: Fail when MariaDB service is not synced
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fail:
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msg: MariaDB service is not synced. Please wait for WSREP sync before proceeding.
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when:
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- groups.mariadb_sync_status_Synced is not defined or
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inventory_hostname not in groups.mariadb_sync_status_Synced
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when:
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- groups.mariadb_port_alive_True is defined
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- inventory_hostname in groups.mariadb_port_alive_True
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when: not mariadb_recover | default(False)
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