add tests in molecule and travis

.gitignore

@@ -1,2 +1,4 @@
 .vagrant
 *.retry
+.molecule
+**__pycache__**

.travis.yml

@@ -1,35 +1,20 @@
----
+sudo: required
 language: python
-python: "2.7"
-
-sudo: true
-
-# Install ansible
-addons:
-  apt:
-    packages:
-    - python-pip
-
+cache: pip
+services:
+  - docker
+env:
+  - ANSIBLE=2.2.3
+  - ANSIBLE=2.3.2
+  - ANSIBLE=2.4.2
 install:
-  # Install ansible
-  - pip install ansible
-
-  # Check ansible version
-  - ansible --version
-
-  # Create ansible.cfg with correct roles_path
-  - printf '[defaults]\nroles_path=../' >ansible.cfg
-
+  - pip install ansible==${ANSIBLE} ansible-lint>=3.4.15 molecule==1.25.0 docker git-semver testinfra>=1.7.0
+before_script:
+  - ansible-lint tests/playbook.yml
 script:
-  # Basic role syntax check
-  - ansible-playbook tests/test.yml -i tests/inventory --syntax-check
-  - ansible-playbook tests/test.yml -i tests/inventory --connection=local
-  - ansible-playbook tests/test.yml -i tests/inventory --connection=local
-  - >
-    ansible-playbook tests/test.yml -i tests/inventory --connection=local
-    | grep -q 'changed=0.*failed=0'
-    && (echo 'Idempotence test: pass' && exit 0)
-    || (echo 'Idempotence test: fail' && exit 1)
-
+  - molecule test
+branches:
+  only:
+    - master
 notifications:
   webhooks: https://galaxy.ansible.com/api/v1/notifications/

.travis/images.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+for i in ubuntu-molecule:16.04 debian-molecule:9 debian-molecule:8 centos-molecule:7 fedora-molecule:27
+do 
+    docker pull paulfantom/$i &
+done
+
+wait

molecule.yml

@@ -0,0 +1,43 @@
+---
+ansible:
+  playbook: tests/playbook.yml
+driver:
+  name: docker
+verifier:
+  name: testinfra
+dependency:
+  name: shell
+  command: ./.travis/images.sh
+docker:
+  build_image: False
+  containers:
+    - name: xenial
+      image: paulfantom/ubuntu-molecule
+      image_version: 16.04
+      privileged: true
+      volume_mounts:
+        - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    - name: stretch
+      image: paulfantom/debian-molecule
+      image_version: 9
+      privileged: true
+      volume_mounts:
+        - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    - name: jessie
+      image: paulfantom/debian-molecule
+      image_version: 8
+      privileged: true
+      volume_mounts:
+        - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    - name: centos7
+      image: paulfantom/centos-molecule
+      image_version: 7
+      privileged: true
+      volume_mounts:
+        - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    - name: fedora
+      image: paulfantom/fedora-molecule
+      image_version: 27
+      privileged: true
+      volume_mounts:
+        - /sys/fs/cgroup:/sys/fs/cgroup:ro

tests/test_default.py

@@ -0,0 +1,37 @@
+from testinfra.utils.ansible_runner import AnsibleRunner
+
+testinfra_hosts = AnsibleRunner('.molecule/ansible_inventory').get_hosts('all')
+
+
+def test_files(host):
+    dirs = [
+        "/etc/caddy",
+        "/opt/node_exporter"
+    ]
+    for dir in dirs:
+        d = host.file(dir)
+        assert d.exists
+        assert d.is_directory
+
+
+def test_packages(host)
+    pkgs = [
+        "git"
+    ]
+    for p in pkgs:
+        assert host.package(p).is_installed
+
+
+def test_service(host):
+    s = host.service("caddy")
+    assert s.is_enabled
+    assert s.is_running
+
+
+def test_socket(host):
+    sockets = [
+        "tcp://localhost:2020"
+    ]
+    for socket in sockets:
+        s = host.socket(socket)
+        assert s.is_listening