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July 27, 2017 17:49
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Ansible role tester using Docker
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| #!/bin/bash | |
| # | |
| # Ansible role test shim. | |
| # | |
| # Usage: [OPTIONS] ./tests/ansible-tester.sh | |
| # - distro: a supported Docker distro version (default = "centos7") | |
| # - playbook: a playbook in the tests directory (default = "test.yml") | |
| # - role_name: the role name (default = "${role_name}") | |
| # - cleanup: whether to remove the Docker container (default = true) | |
| # - container_id: the --name to set for the container (default = timestamp) | |
| # - test_idempotence: whether to test playbook's idempotence (default = true) | |
| # | |
| # License: MIT | |
| # Exit on any individual command failure. | |
| set -e | |
| # Pretty colors. | |
| red='\033[0;31m' | |
| green='\033[0;32m' | |
| neutral='\033[0m' | |
| timestamp=$(date +%s) | |
| # Allow environment variables to override defaults. | |
| distro=${distro:-"centos7"} | |
| playbook=${playbook:-"test.yml"} | |
| role_name=${role_name:-"role_under_test"} | |
| cleanup=${cleanup:-"true"} | |
| container_id=${container_id:-$timestamp} | |
| test_idempotence=${test_idempotence:-"true"} | |
| ## Set up vars for Docker setup. | |
| # CentOS 7 | |
| if [[ "${distro}" == "centos7" ]]; then | |
| init="/usr/lib/systemd/systemd" | |
| opts="--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro" | |
| # CentOS 6 | |
| elif [[ "${distro}" == "centos6" ]]; then | |
| init="/sbin/init" | |
| opts="--privileged" | |
| # Ubuntu 16.04 | |
| elif [[ "${distro}" = "ubuntu1604" ]]; then | |
| init="/lib/systemd/systemd" | |
| opts="--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro" | |
| # Ubuntu 14.04 | |
| elif [[ "${distro}" = "ubuntu1404" ]]; then | |
| init="/sbin/init" | |
| opts="--privileged" | |
| # Ubuntu 12.04 | |
| elif [[ "${distro}" = "ubuntu1204" ]]; then | |
| init="/sbin/init" | |
| opts="--privileged" | |
| fi | |
| # Run the container using the supplied OS. | |
| printf ${green}"Starting Docker container: geerlingguy/docker-${distro}-ansible."${neutral}"\n" | |
| docker pull geerlingguy/docker-${distro}-ansible:latest | |
| docker run --detach --volume="${PWD}":/etc/ansible/roles/${role_name}:rw --name ${container_id} ${opts} geerlingguy/docker-${distro}-ansible:latest ${init} | |
| printf "\n" | |
| # Install requirements if `requirements.yml` is present. | |
| if [ -f "${PWD}/tests/requirements.yml" ]; then | |
| printf ${green}"Requirements file detected; installing dependencies."${neutral}"\n" | |
| docker exec --tty ${container_id} env TERM=xterm ansible-galaxy install -r /etc/ansible/roles/${role_name}/tests/requirements.yml | |
| fi | |
| printf "\n" | |
| # Test Ansible syntax. | |
| printf ${green}"Checking Ansible playbook syntax."${neutral} | |
| docker exec --tty ${container_id} env TERM=xterm ansible-playbook /etc/ansible/roles/${role_name}/tests/${playbook} --syntax-check | |
| printf "\n" | |
| # Run Ansible playbook. | |
| printf ${green}"Running command: docker exec ${container_id} env TERM=xterm ansible-playbook /etc/ansible/roles/${role_name}/tests/${playbook}"${neutral} | |
| docker exec ${container_id} env TERM=xterm env ANSIBLE_FORCE_COLOR=1 ansible-playbook /etc/ansible/roles/${role_name}/tests/${playbook} | |
| if [ "${test_idempotence}" = true ]; then | |
| # Run Ansible playbook again (idempotence test). | |
| printf ${green}"Running playbook again: idempotence test"${neutral} | |
| idempotence=$(mktemp) | |
| docker exec ${container_id} ansible-playbook /etc/ansible/roles/${role_name}/tests/${playbook} | tee -a $idempotence | |
| tail ${idempotence} \ | |
| | grep -q 'changed=0.*failed=0' \ | |
| && (printf ${green}'Idempotence test: pass'${neutral}"\n") \ | |
| || (printf ${red}'Idempotence test: fail'${neutral}"\n" && exit 1) | |
| fi | |
| # Remove the Docker container (if configured). | |
| if [ "${cleanup}" = true ]; then | |
| printf "Removing Docker container...\n" | |
| docker rm -f ${container_id} | |
| fi |
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