Run ansible-playbook in the CI

[jerome-caucat]

@JMLX42 I can take care of this.

We can use https://github.com/dawidd6/action-ansible-playbook: a GitHub Action to run ansible playbook.

Where should the playbook be run? If we don't need to run it on a machine that we host ourselves we can use a linux runner hosted by GitHub, the playbook will execute on a fresh virtual machine each time.

• GitHub Action doc: https://docs.github.com/en/actions/learn-github-actions/introduction-to-github-actions
• GitHub Action runs-on detail: https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idruns-on

[JMLX42]

@jerome-caucat that looks good. IMHO the only issue is that we have to store some secrets first such as:

• the env vars in https://github.com/democratech/2022#13-environment-variables
• the actual IP of the server, cf https://github.com/democratech/2022/issues/25

https://github.com/democratech/2022/issues/18

Then set the "master" password of the vault as a secret GitHub Action variable.