mysql: Add options to enable binlog

https://mariadb.com/kb/en/binary-log/

mysql/defaults/main.yml

@@ -8,3 +8,4 @@ mysql_backup_user: "backup"
 mysql_backup_password: "{{ lookup('passwordstore', 'db/{{ ansible_hostname }}-mysql-backup create=true length=20') }}"
 
 mysql_rsnapshot: false
+mysql_enable_binlog: false

mysql/files/override.conf

+[Service]
+Environment=MYSQLD_OPTS=--log-bin

mysql/handlers/main.yml

+---
+
+- name: Reload systemd
+  systemd:
+    daemon_reload: true
+
+- name: Restart mariadb.service
+  systemd:
+    name: mariadb.service
+    state: restarted

mysql/tasks/main.yml

@@ -62,3 +62,24 @@
       file:
         path: /etc/cron.d/mysql-snapshot
         state: absent
+
+- when: mysql_enable_binlog
+  block:
+    - name: Create mariadb.service override directory
+      file:
+        path: /etc/systemd/system/mariadb.service.d
+        state: directory
+        owner: root
+        group: root
+        mode: '0755'
+
+    - name: Enable binlog
+      copy:
+        src: override.conf
+        dest: /etc/systemd/system/mariadb.service.d/override.conf
+        owner: root
+        group: root
+        mode: '0644'
+      notify:
+        - Reload systemd
+        - Restart mariadb.service