Ansible idempotent MySQL installation Playbook

Question

I want to setup a MySQL server on AWS, using Ansible for the configuration management. I am using the default AMI from Amazon (ami-3275ee5b), which uses yum

Answer 1

Adding to the previous answers, I didn't want a manual step before running the command, ie I want to spin up a new server and just run the playbook without having to manually change the root password first time. I don't believe {{ mysql_password }} will work the first time, when root password is null, because mysql_password still has to be defined somewhere (unless you want to override it with -e).

So I added a rule to do that, which is ignored if it fails. This is in addition to, and appears before, any of the other commands here.

- name: Change root user password on first run
  mysql_user: login_user=root
              login_password=''
              name=root
              password={{ mysql_root_password }}
              priv=*.*:ALL,GRANT
              host={{ item }}
      with_items:
        - $ansible_hostname
        - 127.0.0.1
        - ::1
        - localhost
      ignore_errors: true