mariadb-replication/tasks/main.yml
2025-04-11 18:14:33 +02:00

136 lines
4.1 KiB
YAML

---
- name: Sanity check
ansible.builtin.assert:
that:
- hostname_replication_primary is defined
- db_server_id is defined
- name: Install software
ansible.builtin.package:
name: "{{ item }}"
state: present
with_items: "{{ db_packages }}"
- name: "Quick-Fix MariaDB/systemd problems"
ansible.builtin.lineinfile:
path: /usr/lib/systemd/system/mariadb.service
regexp: "^SendSIGKILL=no"
line: "SendSIGKILL=yes"
backup: true
register: db_systemd_fix
when: ansible_virtualization_type == "lxc"
- name: Reload systemd daemon # noqa: no-handler
ansible.builtin.systemd:
daemon_reload: true
when: db_systemd_fix is changed
- name: 'Enable service "{{ db_servicename }}"'
ansible.builtin.service:
name: "{{ db_servicename }}"
state: started
enabled: true
- name: "Config: Listen on all ip addresses"
ansible.builtin.lineinfile:
path: /etc/mysql/mariadb.conf.d/50-server.cnf
regexp: "^ *#* *bind-address"
line: "bind-address = 0.0.0.0"
backup: true
notify: 'Restart MariaDB'
- name: "Config: Set server-id"
ansible.builtin.lineinfile:
dest: /etc/mysql/mariadb.conf.d/50-server.cnf
regexp: "^ *#* *server-id"
line: "server-id = {{ db_server_id }}"
backup: true
notify: 'Restart MariaDB'
- name: Ensure log directory is present
ansible.builtin.file:
path: /var/log/mysql
state: directory
owner: mysql
group: mysql
mode: "0770"
- name: "Config: Enable binlog"
ansible.builtin.lineinfile:
dest: /etc/mysql/mariadb.conf.d/50-server.cnf
regexp: "^ *#* *log_bin"
line: "log_bin = /var/log/mysql/mysql-bin.log"
backup: true
when: db_server_id == 1
notify: 'Restart MariaDB'
- name: MariaDB create replication user
community.mysql.mysql_user:
name: "{{ db_repl_user }}"
password: "{{ db_repl_password }}"
priv: '*.*:REPLICATION SLAVE'
host: "%"
column_case_sensitive: true
state: present
login_unix_socket: /var/run/mysqld/mysqld.sock
notify: 'Restart MariaDB'
- name: Get MariaDB master state
community.mysql.mysql_info:
filter: master_status
login_unix_socket: /var/run/mysqld/mysqld.sock
register: db_master_status
- name: "DEBUG»»» db_server_id / db_master_status.master_status"
ansible.builtin.debug:
msg:
- "db_server_id: {{ db_server_id }}"
- "db_master_status.master_status: {{ db_master_status.master_status }}"
when: db_debug|default(false)
- name: "(Maybe) Restart MariaDB"
ansible.builtin.meta: flush_handlers
- name: Get MariaDB master state
community.mysql.mysql_info:
filter: master_status
login_unix_socket: /var/run/mysqld/mysqld.sock
register: db_master_status_new
- name: "DEBUG»»» db_server_id / db_master_status_new.master_status"
ansible.builtin.debug:
msg:
- "db_server_id: {{ db_server_id }}"
- "db_master_status_new.master_status: {{ db_master_status_new.master_status|to_nice_json }}"
when: db_debug|default(false)
- name: "(Master) Reset binlog" # noqa: no-changed-when
ansible.builtin.command:
cmd: '/usr/bin/mysql -u root -e "RESET MASTER"'
when: db_server_id == 1 and db_master_status.master_status == {}
- name: "(Replica) Get status"
community.mysql.mysql_replication:
mode: getreplica
login_unix_socket: /var/run/mysqld/mysqld.sock
register: db_replica_status
- name: "DEBUG»»» db_replica_status"
ansible.builtin.debug:
var: db_replica_status
when: db_debug|default(false)
- name: "(Replica) Block for replicas"
when: db_server_id != 1 and db_replica_status.Slave_IO_Running|default("No") == "No"
block:
- name: "(Replica) Setup replication" # noqa: no-changed-when
ansible.builtin.command:
cmd: '/usr/bin/mysql -u root -e "CHANGE MASTER TO master_host=\"{{ hostvars[hostname_replication_primary]["ansible_default_ipv4"].address }}\", master_user=\"{{ db_repl_user }}\", master_password=\"{{ db_repl_password }}\", master_use_gtid=current_pos"' # noqa: yaml[line-length]
- name: "(Replica) Start replica"
community.mysql.mysql_replication:
mode: startreplica
login_unix_socket: /var/run/mysqld/mysqld.sock