Ansible Playground

Ansible is an IT automation engine. This is a docker-compose project to quickly get set up with an Ansible control node, and multiple hosts to target with your playbooks.

graph TD
    A[Docker Host] -->|SSH| B[Control Node Container]
    B --> C[Host Node Container]
    B --> D[Host Node Container]
    B --> E[Host Node Container]

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SSH Keys

ssh-keygen will generate id_rsa and id_rsa.pub on linux or windows. Put both files in the /keys directory on the docker-compose host before running docker compose up. The public key will be added to the authorized_keys file in the host node image, and the private key will be added to the control node image.

Setting up

1. Ensure the keys are in the /keys directory on the docker-compose host.
2. Run docker compose up to start the containers.
3. Connect to the control node with docker attach ansible-playground-control-node-1 or ssh from your docker host to the control node with user: ansible and password: ansible
4. Check the connection to the host containers from the control node with `ansible -m ping all'

Playbooks

Add or edit yml files in the ansible/playbooks/ directory on your docker host machine and they will be available in the control node in realtime. Run with ansible-playbook demo.yml

Notes

• You can ssh from the control node to the host nodes, just remember to specify the correct user: ssh root@host2
• Any changes to the dockerfiles or docker-compose.yml may require the --build flag: docker compose up --build