ansible 2.6 + allow remote docker host (#46)

[minor] New ansible just came out ( https://github.com/ansible/ansible/blob/stable-2.6/changelogs/CHANGELOG-v2.6.rst )

Also allow using remote docker host.

Author: paulfantom

.travis.yml

@@ -1,20 +1,23 @@
+---
 sudo: required
 language: python
 cache: pip
 services:
   - docker
 env:
-  - ANSIBLE=2.3
   - ANSIBLE=2.4
   - ANSIBLE=2.5
+  - ANSIBLE=2.6
+matrix:
+  fast_finish: true
 install:
   - pip install tox-travis git-semver
 script:
   - tox
 deploy:
   provider: script
   skip_cleanup: true
-  script: ./.travis/releaser.sh
+  script: .travis/releaser.sh
   on:
     branch: master
 branches:

README.md

@@ -14,7 +14,7 @@ Deploy prometheus [node exporter](https://github.com/prometheus/node_exporter) u
 
 ## Requirements
 
-- Ansible >= 2.3
+- Ansible >= 2.4
 
 ## Role Variables
 
@@ -60,6 +60,8 @@ tox -e py27-ansible25 -- molecule test -s default
 ```
 For more information about molecule go to their [docs](http://molecule.readthedocs.io/en/latest/).
 
+If you would like to run tests on remote docker host just specify `DOCKER_HOST` variable before running tox tests.
+
 ## Travis CI
 
 Combining molecule and travis CI allows us to test how new PRs will behave when used with multiple ansible versions and multiple operating systems. This also allows use to create test scenarios for different role configurations. As a result we have a quite large test matrix which will take more time than local testing, so please be patient.

meta/main.yml

@@ -3,7 +3,7 @@ galaxy_info:
   author: Roman Demachkovych, Pawel Krupa
   description: Prometheus Node Exporter
   license: MIT
-  min_ansible_version: 2.3
+  min_ansible_version: 2.4
   platforms:
   - name: Ubuntu
     versions:

molecule/default/molecule.yml

@@ -8,31 +8,37 @@ lint:
 platforms:
   - name: bionic
     image: paulfantom/ubuntu-molecule:18.04
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
     privileged: true
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
   - name: xenial
     image: paulfantom/ubuntu-molecule:16.04
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
     privileged: true
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
   - name: stretch
     image: paulfantom/debian-molecule:9
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
     privileged: true
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
   - name: jessie
     image: paulfantom/debian-molecule:8
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
     privileged: true
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
   - name: centos7
     image: paulfantom/centos-molecule:7
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
     privileged: true
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
   - name: fedora
     image: paulfantom/fedora-molecule:27
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
     privileged: true
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro

test-requirements.txt

@@ -2,3 +2,4 @@ molecule>=2.15.0
 docker
 ansible-lint>=3.4.0
 testinfra>=1.7.0
+jmespath

tox.ini

@@ -1,20 +1,20 @@
 [tox]
 minversion = 1.8
-envlist = py{27}-ansible{23,24,25}
+envlist = py{27}-ansible{24,25,26}
 skipsdist = true
 
 [travis:env]
 ANSIBLE=
-  2.3: ansible23
   2.4: ansible24
   2.5: ansible25
+  2.6: ansible26
 
 [testenv]
 passenv = *
 deps =
     -rtest-requirements.txt
-    ansible23: ansible<2.4
     ansible24: ansible<2.5
     ansible25: ansible<2.6
+    ansible26: ansible<2.7
 commands =
     {posargs:molecule test --all --destroy always}