An introduction to Ansible
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Automation is at the heart of modern infrastructure. Ansible is a great tool to automate your routing workflows and your infrastructure. This talk will present you the best of Ansible - how you can quickly get started and start automating your infrastructure with it.
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An introduction to Ansible
- 1. Ansible 101 Julien Pivotto (@roidelapluie) CentOS Dojo February 2018
- 2. whoami Julien "roidelapluie" Pivotto @roidelapluie Sysadmin at inuits Automation, monitoring, HA Puppet User Ansible User
- 3. inuits
- 4. The DevOps principles: CAMS (a definition of DevOps) Culture Automation Measurement Sharing (Damon Edwards and John Willis, 2010 http://devopsdictionary.com/wiki/CAMS)
- 5. Automation Automate all the things Version Control Continuous Integration and Deployment Infrastructure as Code
- 6. Ansible Open Source Infra as Code by Red Hat
- 7. Ansible concepts Inventory List of hosts Variables
- 8. Playbook List of plays Play List of things to do on some servers
- 9. Role Tasks, templates, variables,... Task List of modules to apply Module What ansible can manage and how
- 10. Demo: Inventory Inventory file List of hosts Groups Variables Variables outside of inventory
- 11. Demo: Modules Stop a service with ansibe cli (ntp) Install / remove a package with ansible cli (ntp)
- 12. Demo: Playbook Simple play with tasks Install ntp and start the service
- 13. Demo: role Role that installs ntp Starts the service
- 14. Demo: role Create a role with ansible galaxy Start httpd Variable to start and stop Override var in inventory
- 15. Demo: other features Take the httpd Add a template Restart with a template
- 16. Demo: other features Take the httpd Add a template Restart with a template
- 17. Demo: Ansible vault Create a vault password Put it in a file Encrypt/Decrypt secrets
- 18. How to organize your ansible tree "Best practices" in the ansible documentation Do not pout everything in one play - no fun and slow
- 19. Ansible is not enough Using ansible alone from a server is not reliable No knowledge sharing High risk of errors
- 20. Git Using SCM enables you to code review Test accross multiple env Have consistency across environments
- 21. Jenkins Using CI tools enable you to secure ansible Make it more accessible Consistent ansible runs
- 22. Demo: git and jenkins
- 23. Conclusion Ansible is powerful It is simple and easy to learn Better used with SCM and CI tools