Let's start our playbook by enabling the three repositories we need in order to install our software stack and then, once those repositories are enabled, we should do a yum update to make sure that the base operating system is up to date.
The roles/stack-install/defaults/main.yml file requires the following content to achieve this. First, we have the locations for the RPM packages that enable EPEL and IUS:
repo_packages: - "epel-release" - "https://centos7.iuscommunity.org/ius-release.rpm"
After that, we have the following nested variable, which contains all of the information we need to use the yum_repository module in order to create a .repo file for the NGINX repository:
nginx_repo: name: "nginx" description: ...
