Add Molecule test scenario

.github/workflows/main.yml

@@ -0,0 +1,20 @@
+---
+name: Molecule
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Ansible Molecule
+        uses: MonolithProjects/action-molecule@v1.4.3

.yamllint

@@ -0,0 +1,33 @@
+---
+# Based on ansible-lint config
+extends: default
+
+rules:
+  braces:
+    max-spaces-inside: 1
+    level: error
+  brackets:
+    max-spaces-inside: 1
+    level: error
+  colons:
+    max-spaces-after: -1
+    level: error
+  commas:
+    max-spaces-after: -1
+    level: error
+  comments: disable
+  comments-indentation: disable
+  document-start: disable
+  empty-lines:
+    max: 3
+    level: error
+  hyphens:
+    level: error
+  indentation: disable
+  key-duplicates: enable
+  line-length: disable
+  new-line-at-end-of-file: disable
+  new-lines:
+    type: unix
+  trailing-spaces: disable
+  truthy: disable

molecule/default/converge.yml

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+---
+- name: Converge
+  hosts: all
+  roles:
+    - role: ipr-cnrs.nftables
+
+

molecule/default/molecule.yml

@@ -0,0 +1,12 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+platforms:
+  - name: instance
+    image: ubuntu:latest
+provisioner:
+  name: ansible
+verifier:
+  name: ansible

molecule/default/verify.yml

@@ -0,0 +1,10 @@
+---
+# This is an example playbook to execute Ansible tests.
+
+- name: Verify
+  hosts: all
+  gather_facts: false
+  tasks:
+  - name: Example assertion
+    assert:
+      that: true