Test role across multiple distributions

Implement support to test the role in multiple Linux distributions by deploying Docker containers within Travis

.travis.yml

@@ -1,30 +1,34 @@
 ---
-language: python
-python: "2.7"
-# Use the new container infrastructure
 sudo: required
-# Install ansible
-addons:
-  apt:
-    packages:
-    - python-pip
-install:
-  # Install ansible
-  - pip install ansible
-  # Check ansible version
-  - ansible --version
-  # Create ansible.cfg with correct roles_path
-  - printf '[defaults]\nroles_path=../' >ansible.cfg
+services:
+  - docker
+env:
+  - distribution: centos
+    version: 6
+  - distribution: centos
+    version: 7
+  - distribution: ubuntu
+    version: trusty
+  - distribution: ubuntu
+    version: xenial
+  - distribution: debian
+    version: jessie
+  - distribution: debian
+    version: stretch
+before_install:
+  - 'sudo docker pull ${distribution}:${version}'
+  - 'sudo docker build --no-cache --rm --file=tests/dockerfiles/Dockerfile.${distribution}-${version} --tag=${distribution}-${version}:ansible tests'
 script:
-  # Basic role syntax check
-  - ansible-playbook tests/test.yml -i tests/inventory --syntax-check
-  # Run the role with ansible-playbook.
-  - ansible-playbook tests/test.yml -i tests/inventory --connection=local --become
-  # Run the role again, checking to make sure it's idempotent.
+  - container_id=$(mktemp)
+  - 'sudo docker run --detach --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro --volume="${PWD}":/etc/ansible/roles/ansible-role-nginx:ro ${distribution}-${version}:ansible > "${container_id}"'
+  - 'sudo docker exec "$(cat ${container_id})" env ANSIBLE_FORCE_COLOR=1 ansible-playbook -v /etc/ansible/roles/ansible-role-nginx/tests/test.yml --syntax-check'
+  - 'sudo docker exec "$(cat ${container_id})" env ANSIBLE_FORCE_COLOR=1 ansible-playbook -v /etc/ansible/roles/ansible-role-nginx/tests/test.yml'
   - >
-    ansible-playbook tests/test.yml -i tests/inventory --connection=local --become | grep -q 'changed=0.*failed=0'
-    && (echo 'Idempotence test: pass' && exit 0) || (echo 'Idempotence test: fail' && exit 1)
-  # Request a page via the web server, to make sure NGINX is running and responds.
-  - curl http://localhost/
+    sudo docker exec "$(cat ${container_id})" env ANSIBLE_FORCE_COLOR=1 ansible-playbook -v /etc/ansible/roles/ansible-role-nginx/tests/test.yml
+    | grep -q 'changed=0.*failed=0'
+    && (echo 'Idempotence test: pass' && exit 0)
+    || (echo 'Idempotence test: fail' && exit 1)
+  - 'sudo docker exec "$(cat ${container_id})" curl http://localhost/'
+  - 'sudo docker rm -f "$(cat ${container_id})"'
 notifications:
   webhooks: https://galaxy.ansible.com/api/v1/notifications/

tests/dockerfiles/Dockerfile.centos-6

@@ -0,0 +1,12 @@
+FROM centos:6
+
+RUN yum -y install epel-release
+RUN yum -y install git ansible sudo
+
+RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
+
+RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+
+VOLUME ["/sys/fs/cgroup"]
+
+CMD ["/usr/sbin/init"]

tests/dockerfiles/Dockerfile.centos-7

@@ -0,0 +1,24 @@
+FROM centos:7
+
+# Install systemd -- See https://hub.docker.com/_/centos/
+RUN yum -y swap -- remove fakesystemd -- install systemd systemd-libs
+RUN yum -y update; \
+(cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
+rm -f /lib/systemd/system/multi-user.target.wants/*; \
+rm -f /etc/systemd/system/*.wants/*; \
+rm -f /lib/systemd/system/local-fs.target.wants/*; \
+rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
+rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
+rm -f /lib/systemd/system/basic.target.wants/*; \
+rm -f /lib/systemd/system/anaconda.target.wants/*;
+
+RUN yum -y install epel-release
+RUN yum -y install git ansible sudo
+
+RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
+
+RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+
+VOLUME ["/sys/fs/cgroup"]
+
+CMD ["/usr/sbin/init"]

tests/dockerfiles/Dockerfile.debian-jessie

@@ -0,0 +1,17 @@
+FROM debian:jessie
+
+RUN apt-get update -y && apt-get install -y --no-install-recommends \
+    software-properties-common \
+    build-essential \
+    libffi-dev \
+    libssl-dev \
+    python-dev \
+    python-pip \
+    git \
+ && rm -rf /var/lib/apt/lists/*
+
+RUN pip install --upgrade setuptools && pip install ansible
+
+RUN mkdir -p /etc/ansible && echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
+
+ENTRYPOINT ["/sbin/init"]

tests/dockerfiles/Dockerfile.debian-stretch

@@ -0,0 +1,18 @@
+FROM debian:stretch
+
+RUN apt-get update -y && apt-get install -y --no-install-recommends \
+    software-properties-common \
+    build-essential \
+    libffi-dev \
+    libssl-dev \
+    python-dev \
+    python-pip \
+    git \
+    systemd \
+ && rm -rf /var/lib/apt/lists/*
+
+RUN pip install --upgrade setuptools && pip install ansible
+
+RUN mkdir -p /etc/ansible && echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
+
+ENTRYPOINT ["/bin/systemd"]

tests/dockerfiles/Dockerfile.ubuntu-trusty

@@ -0,0 +1,12 @@
+FROM ubuntu:trusty
+
+RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y software-properties-common && rm -rf /var/lib/apt/lists/*
+
+RUN apt-add-repository -y ppa:ansible/ansible && apt-get update && apt-get install -y \
+    git \
+    ansible \
+ && rm -rf /var/lib/apt/lists/*
+
+RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
+
+ENTRYPOINT ["/sbin/init"]

tests/dockerfiles/Dockerfile.ubuntu-xenial

@@ -0,0 +1,12 @@
+FROM ubuntu:xenial
+
+RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y software-properties-common && rm -rf /var/lib/apt/lists/*
+
+RUN apt-add-repository -y ppa:ansible/ansible && apt-get update && apt-get install -y \
+    git \
+    ansible \
+ && rm -rf /var/lib/apt/lists/*
+
+RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
+
+ENTRYPOINT ["/sbin/init"]