Ansible Role: mysql_query

Ansible module to set values in a mysql table, or insert records. Useful for web-applications that store configurations in database. E.g. icingaweb2 requires the initial user to be inserted into the database. The install-wizard could do it, but with ansible you want to automate installation ;)

Listed at Ansible Galaxy Page as zauberpony.mysql-query.

Install

Install via ansible-galaxy, ansible-galaxy install zauberpony.mysql-query, or manually put the file mysql_query into your roles_path.

Requirements:

python bindings for mysql (just like the core mysql_* modules):

• MySQLdb (Python 2.x only)
• PyMySQL (Python 2.7 and python 3.x)

Example playbook

A complete example that ensures a record is present in a given table.

---
- hosts: all
  roles:
    - zauberpony.mysql-query
  tasks:
    - name: insert a row
      mysql_query:
        name: ansible-playbook-example
        table: simple_table
        login_host: ::1
        login_user: root
        login_password: password
        identifiers:
          id: 14
          email: 'john@example.com'
        values:
          role: "admin"
          department: 'IT'
        defaults:
          password: "secret"
          last_login: 1469264933

Given a table simple_table with columns (id, email, role, department, password, last_login), this example would:

• Look for a row where id = 14 and email = 'john@example.com'
  • if the row does not exist: insert a row with id=14, email='john@example.com', role="admin", department="IT", password="secret", last_login=1469264933
  • if the row does exist: check if the values (role, department) match the given values, if not: update

Thus:

• identifiers are being used to check for existence and to find a row
• defaults are being used as default values if the row is not present (i.e.: only used for insert)
• values are the state of the row that ansible ensures

A complete example that ensures a record is not present in a given table.

---
- hosts: all
  roles:
    - zauberpony.mysql-query
  tasks:
    - name: insert a row
      mysql_query:
        state: absent
        name: ansible-playbook-example
        table: simple_table
        login_host: ::1
        login_user: root
        login_password: password
        identifiers:
          id: 14
          email: 'john@example.com'

Running the examples from sources

Make sure you have a running mysql server (e.g.: use the docker-compose.yml-file) and update the connection-parameters if necessary.

Run via ansible-playbook -i demo.yml (or even simpler ./demo.yml) and undo (to start all over) with ansible-playbook -i reset.yml.

After running ./demo.yml, you can run ./checkmode-demo.yml -C to test ansible's check mode. Just run ./demo.yml and ./checkmode-demo.yml a few times with -C and without -C to get a feel for it.