Ansible testing
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The document discusses the importance of testing in Ansible to ensure proper server configuration before deployment. It outlines various testing strategies, including checking files, directories, permissions, and processes using custom modules. The author, Allan Denot, shares his experience as a DevOps engineer and provides links to resources for further exploration.
Ansible testing
- 1. Testing Ansible with Ansible
- 2. Allan Denot ∙ 1 year experience with Ansible ∙ 2 years experience with AWS ∙ DevOps Engineer at cammy.com (previously Suncorp) ∙ Co-founder of spikenode.com @denot allandenot.com
- 3. Allan Denot @denot allandenot.com ∙ Brazilian ∙ 4 years in Australia
- 4. Why we need testing?
- 6. The ProblemTEAMB App is not working. Was the server configured? TEAMA Yes... Probably... Oh wait, our playbook failed Then why apache is not installed?
- 7. Solution Configuring servers! Ok, let me check. TEAMBTEAMA All good! Deploying app!
- 8. s e r v e r SolutionTEAMB asserts the state of the servers before deploying and only deploys if passes Useful when different teams are in charged of different layers of configuration. operational system web server database application
- 9. Testing with custom module Example playbook: - name: Test Setup Webservers hosts: all tasks: - assert_file: name=/apps should_be=directory - assert_owner: name=/apps should_be=appuser - assert_tcp: name=localhost:80 should_be=open with_timeout=3
- 10. Custom module https://github.com/adenot/ansible-testing Testing permissions: - assert_mode: name=/tmp/testfile should_be=0755 - assert_owner: name=/tmp/testfile should_be=adenot - assert_group: name=/tmp/testfile should_be=users
- 11. Custom module https://github.com/adenot/ansible-testing Testing files/directories: - assert_group: name=/tmp/testfile should_be=users - assert_file: name=/tmp/testfile should_be=file - assert_file: name=/tmp/testdir should_be=directory - assert_content: name=/tmp/testfile should_match="example.*string"
- 12. Custom module https://github.com/adenot/ansible-testing Testing processes/ports: - assert_process: name=/sbin/agetty should_be=running with_args='38400' - assert_tcp: name=localhost:9001 should_be=open with_timeout=3 - assert_command: name='netstat -nl|grep ":9001"' should_be=successful
- 13. Demo