Initialize Custom Data Directory

Partially Fixes geerlingguy#510

This will create the expected data directory. This most likely does not
address protections in place because of AppArmor on Ubuntu

Have to account for MariaDB and MySQL's differences in initalizing a new
system

tasks/configure.yml

@@ -80,6 +80,18 @@
     - mysql_log_error | default(false)
   tags: ['skip_ansible_galaxy']
 
+- name: Initialize mysql when mysql_datadir is customized (MySQL)
+  ansible.builtin.command: mysqld --initialize-insecure --user=mysql --datadir={{ mysql_datadir }}
+  args:
+    creates: "{{ mysql_datadir }}/mysql"
+  when: mysql_datadir != "/var/lib/mysql" and "mariadb-server" not in mysql_packages
+
+- name: Initialize mysql when mysql_datadir is customized (MariaDB)
+  ansible.builtin.command: mysql_install_db
+  args:
+    creates: "{{ mysql_datadir }}/mysql"
+  when: mysql_datadir != "/var/lib/mysql" and "mariadb-server" in mysql_packages
+
 - name: Ensure MySQL is started and enabled on boot.
   ansible.builtin.service:
     name: "{{ mysql_daemon }}"