Testing Ansible with Jenkins and Docker
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This document discusses using Jenkins and Docker to test Ansible code. It describes two approaches: the first uses Jenkins plugins to build a Docker image and run tests in a container, while the second builds and tests directly with Docker without plugins. The key steps are to create Jenkins jobs to build an image with the Ansible code and test playbooks, run the test playbook in a container, and verify the results. Benefits of this approach include fast test cycles and reproducible environments.
Testing Ansible with Jenkins and Docker
- 1. Testing Ansible with Jenkins and Docker Dennis Rowe @shr3kst3r wpengine.com
- 2. Goals Verify the Ansible code Run the Ansible code Verify the Results
- 3. • Why we are here • Automation • Configuration Management
- 4. • “An extensible open source continuous integration server” • Lets us run stuff • Plugins lets you do extra stuff
- 5. • The new hotness • Containers • Tools for containers
- 6. Note • So, I did it two ways. • First way, meh • Second way, less meh, more weeee
- 8. We Need Two Jobs
- 10. Create our First Jenkins Project • Create a freestyle project called “Build Docker Image” • Use custom workspace (under Advanced). I set my workspace to build_docker_image. • Configure the source repository (https:// github.com/shr3kst3r/ansible-jenkins- example.git)
- 11. Add “Execute shell” Build Step
- 12. Dockerfile
- 14. Docker Images
- 16. Docker Plugins • “Docker plugin” • https://wiki.jenkins-ci.org/display/ JENKINS/Docker+Plugin • “SSH plugin” • https://wiki.jenkins-ci.org/display/ JENKINS/SSH+plugin
- 18. Add a SSH Remote
- 19. Create our Second Jenkins Project • Create a freestyle project called “Project Test Ansible with Docker” • Use custom workspace (under Advanced). I set my workspace to docker_ansible. • Configure the source repository (https:// github.com/shr3kst3r/ansible-jenkins- example.git)
- 20. Start Container
- 21. Execute Tests
- 22. test_it • Lint Ansible code using ansible-lint (https://github.com/willthames/ansible- lint) • Run the Ansible playbook • Verify environment using Serverspec (http://serverspec.org/) • Source: https://github.com/shr3kst3r/ ansible-jenkins-example/blob/master/ test_it
- 23. Stop Dockers
- 24. Build
- 27. Test Container • I can actually get access to the running container • Just delete the “Post-build Action” • Then run the build
- 29. ssh
- 30. The Second Way
- 31. Notes • Similar two the first way, but no Jenkins plugins. • Derived from the book “The Docker Book” by James Turnbull
- 32. Thats All
- 33. Bonus
- 34. Testing on my Mac • http://boot2docker.io/ • docker build -t jenkins-ansible . • docker run -v "/Users/dennis/git/ansible- jenkins-example:/build:rw" jenkins- ansible /bin/bash -c 'cd /build && ./ test_it’ • docker rm $(docker ps -a -q) # delete
- 36. Benefits • Super fast start times. Do not have to spin up a server. • Allows for a very quick test lifecycle (22 seconds total time for this simple example) • Reproducible and Consistent
- 37. Ansible and Docker • Some General Info (interesting video): http://www.ansible.com/docker • Docker Module: http:// docs.ansible.com/docker_module.html
- 38. Odds and Ends • https://github.com/shr3kst3r/ansible- jenkins-example • You can reach me at [email protected] or @shr3kst3r on the twitters