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 for package management. When the Playbook below is executed, all goes well. But when I run it for a second time, the task Configure the root credentials fails, because the old password of MySQL doesn't match anymore, since it has been updated
![Ansible idempotent MySQL installation Playbook](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)