Implement installation method selection for MariaDB role

This should allow easily switch to using distro-porvided version of MariaDB
rather then installed from external repo which is aligned in version across
all distributions.

Change-Id: I203aa8e6ac5d0c7f604c3342a400aabad34729d9

defaults/main.yml

@@ -89,6 +89,9 @@ galera_additional_users: []
 #    priv: "*.*:USAGE"
 #    state: present
 
+# Choose 'distro' or 'external_repo'
+galera_install_method: external_repo
+
 # Enable or disable the installation of galera development packages
 galera_install_devel: false
 

meta/main.yml

@@ -44,3 +44,5 @@ dependencies:
     apt_package_pinning_file_name: "galera_pin.pref"
     when:
       - ansible_facts['pkg_mgr'] == 'apt'
+      - galera_install_method == 'external_repo'
+      - galera_repo | default(True)

releasenotes/notes/galera_install_source-2989c9ed3a21d945.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Added variable ``galera_install_method`` to control whether external
+    repositories should be configured or role should attempt to install
+    from distro default ones instead.

tasks/galera_install_apt.yml

@@ -17,7 +17,13 @@
   package:
     name: "{{ galera_mariadb_distro_packages_remove | default([]) }}"
     state: absent
+  when: galera_install_method == 'external_repo'
 
+- name: Configure repositories for MariaDB installation
+  when:
+    - galera_install_method == 'external_repo'
+    - galera_repo
+  block:
     - name: If a keyfile is provided, copy the gpg keyfile to the key location
       copy:
         src: "gpg/{{ item.id }}"

tasks/galera_install_dnf.yml

@@ -32,6 +32,7 @@
   register: _remove_existing_mariadb_packages
   changed_when: _remove_existing_mariadb_packages.rc == 2
   failed_when: _remove_existing_mariadb_packages.rc not in [0, 2]
+  when: galera_install_method == 'external_repo'
   args:
     executable: /bin/bash
 
@@ -85,6 +86,11 @@
       state: "link"
       force: true
 
+- name: Configure repositories for MariaDB installation
+  when:
+    - galera_install_method == 'external_repo'
+    - galera_repo
+  block:
     - name: If a keyfile is provided, copy the gpg keyfile to the key location
       copy:
         src: "gpg/{{ item.key | basename }}"
@@ -101,7 +107,6 @@
         gpgcheck: yes
         enabled: yes
         priority: 25
-  when: galera_repo != {}
       register: add_galera_repos
       until: add_galera_repos is success
       retries: 5
@@ -113,7 +118,6 @@
         line: "module_hotfixes=1"
         regexp: "^module_hotfixes"
         insertafter: "^enabled"
-  when: galera_repo != {}
 
 # When changing the repo URL, the metadata does
 # not reliably update, resulting in the right

vars/redhat.yml

@@ -30,21 +30,21 @@ galera_server_required_distro_packages:
   - libstdc++
   - libgcc
   - libgcrypt
-  - MariaDB-client
-  - MariaDB-devel
+  - "{{ (galera_install_method == 'external_repo') | ternary('MariaDB-client', 'mariadb') }}"
+  - "{{ (galera_install_method == 'external_repo') | ternary('MariaDB-devel', 'mariadb-connector-c-devel') }}"
   - python3-PyMySQL
 
 galera_etc_conf_file: "/etc/mysql/my.cnf"
 galera_etc_include_dir: "/etc/mysql/conf.d"
 galera_var_run_socket: "{{ galera_data_dir }}/mysql.sock"
 
-_galera_mariadb_server_package: "MariaDB-server"
+_galera_mariadb_server_package: "{{ (galera_install_method == 'external_repo') | ternary('MariaDB-server', 'mariadb-server') }}"
 
 galera_server_mariadb_distro_packages:
   - which
   - "{{ galera_mariadb_server_package }}"
-  - MariaDB-backup
-  - MariaDB-shared
+  - "{{ (galera_install_method == 'external_repo') | ternary('MariaDB-backup', 'mariadb-backup') }}"
+  - "{{ (galera_install_method == 'external_repo') | ternary('MariaDB-shared', 'galera') }}"
   - rsync
   - socat
 
@@ -56,9 +56,9 @@ galera_mariadb_distro_packages_remove:
 
 # The packages to uninstall during an upgrade from a previous version
 galera_server_upgrade_packages_remove:
-  - galera-*
+  - galera*
   - MariaDB-Galera-server
-  - MariaDB-server
+  - "{{ galera_mariadb_server_package }}"
 
 _galera_repo_url: "http://{{ galera_repo_host }}/MariaDB/mariadb-{{ galera_major_version }}.{{ galera_minor_version }}/yum/rhel/$releasever/$basearch"
 _galera_repo:
@@ -67,12 +67,13 @@ _galera_repo:
   baseurl: "{{ galera_repo_url }}"
   gpgkey: "file://{{ galera_gpg_keys | map(attribute='key') | join('file://') }}"
 
-galera_wsrep_provider: "/usr/lib64/galera-4/libgalera_smm.so"
+# NOTE: CentOS Stream/Rocky 9 still ship mariadb 10.5 out of their default repos
+galera_wsrep_provider: "/usr/lib64/{{ (galera_install_method == 'external_repo') | ternary('galera-4', 'galera') }}/libgalera_smm.so"
 
 galera_client_distro_packages:
-  - MariaDB-client
+  - "{{ (galera_install_method == 'external_repo') | ternary('MariaDB-client', 'mariadb') }}"
 
 galera_devel_distro_packages:
-  - MariaDB-devel
+  - "{{ (galera_install_method == 'external_repo') | ternary('MariaDB-devel', 'mariadb-connector-c-devel') }}"
 
 galera_unix_socket: "{{ galera_data_dir }}/mysql.sock"