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MySQL Server

This roles helps to install MySQL Server across RHEL and Ubuntu variants. Apart from installing the MySQL Server, it applies basic hardening, like securing the root account with password, and removing test databases. The role can also be used to add databases to the MySQL server and create users in the database. It also supports configuring the databases for replication--both master and slave can be configured via this role.

Requirements

This role requires Ansible 1.4 or higher, and platform requirements are listed in the metadata file.

Role Variables

The variables that can be passed to this role and a brief description about them are as follows:

  mysql_port: 3306                 # The port for mysql server to listen
  mysql_bind_address: "0.0.0.0"    # The bind address for mysql server
  mysql_root_db_pass: foobar       # The root DB password

  # A list that has all the databases to be
  # created and their replication status:
  mysql_db:                                 
       - name: foo
         replicate: yes
       - name: bar
         replicate: no

  # A list of the mysql users to be created
  # and their password and privileges:
  mysql_users:                              
       - name: benz
         pass: foobar
         priv: "*.*:ALL"

  # If the database is replicated the users
  # to be used for replication:
  mysql_repl_user:                          
    - name: repl
      pass: foobar

  # The role of this server in replication:
  mysql_repl_role: master

  # A unique id for the mysql server (used in replication):
  mysql_db_id: 7

Examples

  1. Install MySQL Server and set the root password, but don't create any database or users.

    • hosts: all roles:
      • {role: mysql, mysql_root_db_pass: foobar, mysql_db: none, mysql_users: none }
  2. Install MySQL Server and create 2 databases and 2 users.

    • hosts: all roles:
      • {role: mysql, mysql_db: [{name: benz}, {name: benz2}], mysql_users: [{name: ben3, pass: foobar, priv: ".:ALL"}, {name: ben2, pass: foo}] }

Note: If users are specified and password/privileges are not specified, then default values are set.

  1. Install MySQL Server and create 2 databases and 2 users and configure the database as replication master with one database configured for replication.

    • hosts: all roles:
      • {role: mysql, mysql_db: [{name: benz, replicate: yes }, { name: benz2, replicate: no}], mysql_users: [{name: ben3, pass: foobar, priv: ".:ALL"}, {name: ben2, pass: foo}], mysql_repl_user: [{name: repl, pass: foobar}] }
  2. A fully installed/configured MySQL Server with master and slave replication.

    • hosts: master roles:

      • {role: mysql, mysql_db: [{name: benz}, {name: benz2}], mysql_users: [{name: ben3, pass: foobar, priv: ".:ALL"}, {name: ben2, pass: foo}], mysql_db_id: 8 }
    • hosts: slave roles:

      • {role: mysql, mysql_db: none, mysql_users: none, mysql_repl_role: slave, mysql_repl_master: vm2, mysql_db_id: 9, mysql_repl_user: [{name: repl, pass: foobar}] }

Note: When configuring the full replication please make sure the master is configured via this role and the master is available in inventory and facts have been gathered for master. The replication tasks assume the database is new and has no data.

Dependencies

None

License

BSD

Author Information

Benno Joy

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