ansible을 사용해 yaml로 mariadb를 설치하고 기본 보안을 적용하고 DB를 생성하는 yaml 샘플입니다. 
제가 테스트한 버전은 CentOS7입니다.
ansible을 설치하고 아래 example을 .yml파일로 만들어 서버에 두시고 실행시키면 mariadb가 DB까지 생성이 됩니다.
 
example > 
---
  - name: Install mariadb
    yum: 
      name: mariadb-server
      state: present
 
  - name: Start the service 
    systemd: 
      name: mariadb
      state: started
      enabled: yes    
 
  - name: Adds Python MySQL support on RedHat/CentOS
    yum: name=MySQL-python state=present
    when: ansible_os_family == 'RedHat'
 
  - name: Sets the root password 
    mysql_user: 
      login_user: root 
      login_password: "rootpw" 
      user: root 
      password: "rootpw" 
      host: localhost
 
  - name: Deletes anonymous MySQL server user 
    mysql_user:
      login_user: root 
      login_password: "rootpw"     
      name: ''
      host_all: yes
      state: absent 
  - name: Secures the MySQL root user for IPV6 localhost (::1)
    mysql_user: 
      login_user: root 
      login_password: "rootpw" 
      user: root 
      password: "rootpw"
      host: "::1"
  - name: Secures the MySQL root user for IPV4 localhost (127.0.0.1)
    mysql_user: 
      login_user: root 
      login_password: "rootpw" 
      user: root 
      password: "rootpw"
      host: "127.0.0.1"
  - name: Secures the MySQL root user for localhost domain (localhost)
    mysql_user: 
      login_user: root 
      login_password: "rootpw" 
      user: root 
      password: "rootpw"
      host: "localhost"      
  - name: Secures the MySQL root user for server_hostname domain
    mysql_user: 
      login_user: root 
      login_password: "rootpw" 
      user: root 
      password: "rootpw"
      host: "{{ ansible_fqdn }}"    
  - name: Removes the MySQL test database
    mysql_db: 
      login_user: root 
      login_password: "rootpw" 
      db: test 
      state: absent
 
  - name: Create database user with name 'dbname' and password 'dbpw' with all database privileges
    mysql_user:  
      login_user: root 
      login_password: "rootpw"   
      name: dbname
      password: dbpw
      priv: '*.*:ALL'
      state: present