Use Docker to test on multiple OSes.

.travis.yml

@@ -1,39 +1,60 @@
 ---
 sudo: required
-language: python
-python: "2.7"
 
 env:
-  - SITE=test.yml
+  - repository: geerlingguy/docker-centos7-ansible
+    version: latest
+    init: /usr/lib/systemd/systemd
+    run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
+  - repository: geerlingguy/docker-centos6-ansible
+    version: latest
+    init: /sbin/init
+    run_opts: ""
+  - repository: geerlingguy/docker-ubuntu1604-ansible
+    version: latest
+    init: /lib/systemd/systemd
+    run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
+  - repository: geerlingguy/docker-ubuntu1404-ansible
+    version: latest
+    init: /sbin/init
+    run_opts: ""
+  - repository: geerlingguy/docker-ubuntu1204-ansible
+    version: latest
+    init: /sbin/init
+    run_opts: ""
+
+services:
+  - docker
 
 before_install:
-  - sudo apt-get update -qq
-  - sudo apt-get install -y curl
-
-install:
-  # Install Ansible.
-  - pip install ansible
-
-  # Add ansible.cfg to pick up roles path.
-  - "{ echo '[defaults]'; echo 'roles_path = ../'; } >> ansible.cfg"
+  # Pull container.
+  - 'sudo docker pull ${repository}:${version}'
 
 script:
-  # Check the role/playbook's syntax.
-  - "ansible-playbook -i tests/inventory tests/$SITE --syntax-check"
+  - container_id=$(mktemp)
+  # Run container in detached state.
+  - 'sudo docker run --detach --volume="${PWD}":/etc/ansible/roles/role_under_test:ro ${run_opts} ${repository}:${version} "${init}" > "${container_id}"'
 
-  # Run the role/playbook with ansible-playbook.
-  - "ansible-playbook -i tests/inventory tests/$SITE --connection=local --sudo"
+  # Ansible syntax check.
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm ansible-playbook /etc/ansible/roles/role_under_test/tests/test.yml --syntax-check'
 
-  # Run the role/playbook again, checking to make sure it's idempotent.
+  # Test role.
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm ansible-playbook /etc/ansible/roles/role_under_test/tests/test.yml'
+
+  # Test role idempotence.
+  - idempotence=$(mktemp)
+  - sudo docker exec "$(cat ${container_id})" ansible-playbook /etc/ansible/roles/role_under_test/tests/test.yml | tee -a ${idempotence}
   - >
-    ansible-playbook -i tests/inventory tests/$SITE --connection=local --sudo
+    tail ${idempotence}
     | grep -q 'changed=0.*failed=0'
     && (echo 'Idempotence test: pass' && exit 0)
     || (echo 'Idempotence test: fail' && exit 1)
 
-  # Make sure Ansible is installed (yes, this is contrived, since Ansible was
-  # already installed via pip earlier...).
-  - "which ansible"
+  # Ensure Ansible is installed (contrived... since it's already installed).
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm which ansible'
+
+  # Clean up.
+  - 'sudo docker stop "$(cat ${container_id})"'
 
 notifications:
   webhooks: https://galaxy.ansible.com/api/v1/notifications/

meta/main.yml

@@ -6,7 +6,7 @@ galaxy_info:
   description: Ansible for RedHat/CentOS/Debian/Ubuntu.
   company: "Midwestern Mac, LLC"
   license: "license (BSD, MIT)"
-  min_ansible_version: 1.4
+  min_ansible_version: 1.8
   platforms:
   - name: EL
     versions:

tests/inventory

@@ -1 +0,0 @@
-localhost

tests/test.yml

@@ -1,5 +1,5 @@
 ---
-- hosts: localhost
-  remote_user: root
+- hosts: all
+
   roles:
-    - ansible-role-ansible
+    - role_under_test