🚀 Manage Galera

molecule/_shared/inventory/group_vars/galera.yml

@@ -2,3 +2,4 @@
 
 mariadb_use_galera: true
 mariadb_galera_members: "{{ groups['galera'] }}"
+mariadb_galera_primary_node: "{{ mariadb_galera_members | first }}"

molecule/debian12_galera/converge.yml

@@ -0,0 +1,9 @@
+---
+
+- name: Converge
+  hosts: all
+  gather_facts: true
+  tasks:
+    - name: Include role
+      ansible.builtin.include_role:
+        name: "hanxhx.mysql"

molecule/debian12_galera/molecule.yml

@@ -0,0 +1,55 @@
+---
+
+platforms:
+  - name: debian12-galera1
+    image: dokken/debian-12
+    command: /lib/systemd/systemd
+    dockerfile: ../_shared/Dockerfile.j2
+    capabilities:
+      - SYS_ADMIN
+    cgroupns_mode: host
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:rw
+    privileged: true
+    groups:
+      - galera
+    networks:
+      - name: "00-molecule-d12-galera"
+        ipv4_address: '172.16.51.1'
+    docker_networks:
+      - name: "00-molecule-d12-galera"
+        ipam_config:
+          - subnet: "172.16.51.0/24"
+            gateway: "172.16.51.254"
+
+  - name: debian12-galera2
+    image: dokken/debian-12
+    command: /lib/systemd/systemd
+    dockerfile: ../_shared/Dockerfile.j2
+    capabilities:
+      - SYS_ADMIN
+    cgroupns_mode: host
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:rw
+    privileged: true
+    groups:
+      - galera
+    networks:
+      - name: "00-molecule-d12-galera"
+        ipv4_address: '172.16.51.2'
+
+  - name: debian12-galera3
+    image: dokken/debian-12
+    command: /lib/systemd/systemd
+    dockerfile: ../_shared/Dockerfile.j2
+    capabilities:
+      - SYS_ADMIN
+    cgroupns_mode: host
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:rw
+    privileged: true
+    groups:
+      - galera
+    networks:
+      - name: "00-molecule-d12-galera"
+        ipv4_address: '172.16.51.3'

molecule/debian12_galera/verify.yml

@@ -0,0 +1,31 @@
+---
+
+- name: Verify Galera
+  hosts: galera
+  gather_facts: false
+  tasks:
+    - name: MYSQL_QUERY | Check if Galera is running
+      community.mysql.mysql_query:
+        query: "SHOW GLOBAL STATUS LIKE 'wsrep_ready'"
+        login_unix_socket: /run/mysqld/mysqld.sock
+      register: wsrep_ready
+
+    - name: ASSERT | Fail if Galera is not running
+      ansible.builtin.assert:
+        that:
+          - wsrep_ready.query_result.0.0.Value == "ON"
+        fail_msg: "Galera is not running"
+        success_msg: "Galera is running"
+
+    - name: MYSQL_QUERY | Check Galera status
+      community.mysql.mysql_query:
+        query: "SHOW GLOBAL STATUS LIKE 'wsrep_local_state_comment'"
+        login_unix_socket: /run/mysqld/mysqld.sock
+      register: wsrep_local_state_comment
+
+    - name: ASSERT | Fail if Galera is not on the right state
+      ansible.builtin.assert:
+        that:
+          - wsrep_local_state_comment.query_result.0.0.Value == "Synced"
+        fail_msg: "Galera is not expected state ({{ wsrep_local_state_comment.query_result.0.0.Value }})"
+        success_msg: "Galera is in expected state"