add first working version

README.md

+Ansible Archlinux Mariadb
+============================
+
+A role to set basic mariadb config
+
+Tested and Used on ArchLinux but it Should work on any Linux
+Dependencies
+------------
+
+[Requirements](molecule/default/requirements.yml)
+
+
+Variables
+---------
+
+[Role Variables](defaults/main.yml)
+
+
+Example Playbook
+----------------
+
+[Test Playbook](molecule/default/converge.yml)
+
+
+License
+-------
+
+[License](LICENSE)
+
+
+Todo
+----
+- Should use my own registry for molecule docker archlinux image
+- Should manage mariadb upgrade

defaults/main.yml

+---
+# defaults file for mariadb
+
+mariadb_packages: ['mariadb']
+
+mariadb_disable_tcp: true

handlers/main.yml

+---
+# handlers file for mariadb
+
+- name: Restart Service
+  ansible.builtin.service:
+    name: mariadb
+    state: restarted

meta/main.yml

+galaxy_info:
+  author: Fanch The System
+  name: mariadb
+  description: Run mariadb on Archlinux
+  license: Apache 2.0
+  min_ansible_version: 2.9
+  platforms:
+    - name: Archlinux
+      versions:
+        - all
+
+collections: []
+
+dependencies: []

molecule/default/converge.yml

+---
+- name: Converge
+  hosts: all
+  tasks:
+    - name: "Include mariadb"
+      include_role:
+        name: "mariadb"

molecule/default/molecule.yml

+---
+dependency:
+  name: galaxy
+lint: |
+  yamllint .
+  ansible-lint
+driver:
+  name: docker
+platforms:
+  - name: archlinux-test
+    image: fanchthesystem/archlinux-systemd
+    privileged: true
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    command: "/sbin/init"
+provisioner:
+  name: ansible
+verifier:
+  name: ansible

molecule/default/verify.yml

+---
+# This is an example playbook to execute Ansible tests.
+
+- name: Verify
+  hosts: all
+  gather_facts: false
+  tasks:
+  - name: Example assertion
+    assert:
+      that: true

tasks/conf.yml

+---
+
+- name: Disable Network Access (use only socket)
+  lineinfile:
+    path: /etc/my.cnf.d/server.cnf
+    state: present
+    insertafter: '^\[mysqld\]'
+    regexp: '^skip-networking'
+    line: 'skip-networking'
+  notify: Restart Service
+  when: mariadb_disable_tcp

tasks/enable.yml

+---
+
+- name: Enable Mariadb
+  ansible.builtin.service:
+    name: mariadb
+    state: started
+    enabled: yes

tasks/initdb.yml

+---
+- name: Init Database Cluster
+  command: |
+    mariadb-install-db --user=mysql --basedir=/usr --datadir=/var/lib/mysql \
+    --skip-test-db \
+    --auth-root-authentication-method=socket
+  args:
+    creates: "/var/lib/mysql/*"
+
+# mysql_secure_installation should not be need after 10.4
+# https://mariadb.com/kb/en/authentication-from-mariadb-104/
+# it look like --auth-root-authentication-method=socket is not the default
+# and it imply the not existing option --skip-auth-anonymous-user
+
+# SHOW DATABASES;
+# SELECT Host,User,Password,plugin,authentication_string FROM mysql.user;
+# SHOW GRANTS FOR ''@'localhost';

tasks/install.yml

+---
+
+- name: Install Packages
+  ansible.builtin.package:
+    name: "{{ mariadb_packages }}"
+    state: present

tasks/main.yml

+---
+# tasks file for mariadb
+
+- name: Install Mariadb
+  include_tasks: install.yml
+
+- name: Init Database
+  include_tasks: initdb.yml
+
+- name: Local Config
+  include_tasks: conf.yml
+
+- name: Enable Service
+  include_tasks: enable.yml

vars/main.yml

+---
+# vars file for mariadb