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Pull Request Checklist#

  1. Make sure your change does not break idempotency tests. See Testing (or let CI run the tests for you if you are certain it is idempotent.) If a task cannot be made idempotent, add the tag molecule-idempotence-notest.
  2. Unless a change is small or doesn't affect users, create an issue on github.
  3. Add a changelog update.
  4. Write an excellent Commit Message. Make sure you reference and link to the issue.
  5. Push your branch to your fork and open a Pull request across forks.
  6. Add GitHub labels as appropriate.


The tests can be run as they are on travis with tox, or they can run with various options using molecule directly.

Requirements: Install Docker, and add yourself to the group that is authorized to administer containers, and log out and back in to make the permissions change take effect. The authorized group is typically the "docker" group:

gpasswd --add "$(whoami)" docker

NOTE: Docker containers can differ from bare-metal or VM OS installs. They can have different packages installed, they can run different kernels, and so on.

Using Molecule:

  1. Install molecule, molecule-inspec, and ansible-lint. It is recommended that you do so with pip in a virtualenv.

  2. Run molecule commands.

    • Test all scenarios on all hosts.

      molecule test --all

    • Test a specific scenario.

      molecule test --scenario-name test-local

    • Use debug for increased verbosity.

      molecule --debug test --all

    • Create and provision, but don't run tests or destroy.

      molecule converge --all

Docs Testing#


pip install mkdocs pymdown-extensions mkdocs-material mike mkdocs-git-revision-date-plugin


mkdocs serve
Click the link it outputs. As you save changes to files modified in your editor, the browser will automatically show the new content.

Last update: 2022-07-04