austinphp/docker-centos8-ansible repository overview

⁠CentOS 8 Ansible Test Image

CentOS 8 Docker container for Ansible playbook and role testing.

⁠Tags

• latest: Latest stable version of Ansible.
• testing: Same as latest, but with additional testing dependencies, including:
  • yamllint
  • ansible-lint
  • flake8
  • testinfra
  • molecule

The latest tag is a lightweight image for basic validation of Ansible playbooks. The testing tag also includes a comprehensive suite of Ansible and infrastructure testing tools in case you want them pre-installed.

⁠How to Build

This image is built on Docker Hub automatically any time the upstream OS container is rebuilt, and any time a commit is made or merged to the master branch. But if you need to build the image on your own locally, do the following:

1. Install Docker⁠.
2. cd into this directory.
3. Run docker build -t centos8-ansible .

⁠How to Use

1. Install Docker⁠.
2. Pull this image from Docker Hub: docker pull austinphp/docker-centos8-ansible:latest (or use the image you built earlier, e.g. centos8-ansible:latest).
3. Run a container from the image: docker run --detach --privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro austinphp/docker-centos8-ansible:latest (to test my Ansible roles, I add in a volume mounted from the current working directory with --volume=`pwd`:/etc/ansible/roles/role_under_test:ro).
4. Use Ansible inside the container: a. docker exec --tty [container_id] env TERM=xterm ansible --version b. docker exec --tty [container_id] env TERM=xterm ansible-playbook /path/to/ansible/playbook.yml --syntax-check

⁠Notes

I use Docker to test my Ansible roles and playbooks on multiple OSes using CI tools like Jenkins and Travis. This container allows me to test roles and playbooks using Ansible running locally inside the container.

⁠Author

Started in 2020 by Austin PHP⁠, from geerlingguy/docker-centos8-ansible⁠