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https://github.com/robertdebock/molecule-action

Test Ansible roles using Molecule
https://github.com/robertdebock/molecule-action

Last synced: 6 days ago
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Test Ansible roles using Molecule

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# Molecule action

A GitHub action to test your [Ansible](https://www.ansible.com/) role using [Molecule](https://molecule.readthedocs.io/).

## Requirements

This action can work with Molecule scenarios that use the [`docker`](https://molecule.readthedocs.io/configuration) driver.

This action expects the following (default Ansible role) structure:
```
.
├── defaults
│   └── main.yml
├── handlers
│   └── main.yml
├── meta
│   └── main.yml
├── molecule
│   └── default
│   ├── molecule.yml
│   ├── playbook.yml
│   └── prepare.yml
├── requirements.yml
├── tasks
│   └── main.yml
├── tox.ini # OPTIONAL
└── vars
└── main.yml
```

If you are missing the `molecule` directory, please have a look at this [skeleton role](https://github.com/robertdebock/ansible-role-skeleton) or one of the many examples listed on [my website](https://robertdebock.nl/).

When `tox.ini` is found, [tox](https://tox.readthedocs.io/en/latest/) is used to test the role. Tox will install all dependecies found in `tox.ini` itself, meaning `tox.ini` determines the version of [molecule](https://molecule.readthedocs.io/en/latest/) that is used.

## Inputs

### `namespace`

The Docker Hub namespace where the image is in. Default `"robertdebock"`.

### `image`

The image you want to run on. Default `"fedora"`.

### `tag`

The tag of the container image to use. Default `"latest"`.

### `options`

The [options to pass to `tox`](https://tox.readthedocs.io/en/latest/config.html#tox). For example `parallel`. Default `""`. (empty)

### `command`

The molecule command to use. For example `create`. Default `"test"`.

### `scenario`

The molecule scenario to run. Default `"default"`

## Example usage

Here is a default configuration that tests your role on `namespace: robertdebock`, `image: fedora`, `tag: latest`.

```yaml
---
on:
- push

jobs:
build:
runs-on: ubuntu-20.04
steps:
- name: checkout
uses: actions/checkout@v3
with:
path: "${{ github.repository }}"
- name: molecule
uses: robertdebock/[email protected]
```

> NOTE: the `checkout` action needs to place the file in `${{ github.repository }}` in order for Molecule to find your role.

If you want to test your role against multiple distributions, you can use this pattern:

```yaml
---
name: CI

on:
- push

jobs:
lint:
runs-on: ubuntu-20.04
steps:
- name: checkout
uses: actions/checkout@v3
with:
path: "${{ github.repository }}"
- name: molecule
uses: robertdebock/[email protected]
with:
command: lint
test:
needs:
- lint
runs-on: ubuntu-20.04
strategy:
matrix:
image:
- alpine
- amazonlinux
- debian
- centos
- fedora
- opensuse
- ubuntu
steps:
- name: checkout
uses: actions/checkout@v3
with:
path: "${{ github.repository }}"
- name: molecule
uses: robertdebock/[email protected]
with:
image: "${{ matrix.image }}"
options: parallel
scenario: my_specific_scenario
```

## Debugging

You can enable Molecule debugging by using this pattern:

```yaml
# Stuff omitted.
- name: molecule
uses: robertdebock/[email protected]
with:
image: ${{ matrix.config.image }}
tag: ${{ matrix.config.tag }}
command: "--debug test"
```