Automate with configuration management

Ignite talk delivered at Devopsdays Amsterdam 2015

Transcript

1. Gopal Ramachandran Automate with Configuration Management Email: gramachandran@tmns.com Twitter: @goposky
2. Enterprises need to make constant changes to systems
3. Incremental changes become hard to maintain
4. Incorrect configurations lead to stalled projects
5. How can configuration management help? …a process of "standardizing resource configurations and enforcing their state across IT infrastructure in an automated yet agile manner”. - Puppet Labs
6. Start with Version control
7. Declare all the system settings Version Control
8. CM tools push those settings to environments
9. CM tools are idempotent
10. Establish a baseline state for your environments
11. Cheaply recreate environments
12. Pitfall! Scripting is time consuming
13. Popular CM tools – The Big Four
14. -First to market -Preferred by Ops folks Popular CM tools… Puppet
15. -Popular with Dev -Facebook uses it Popular CM tools… Chef
16. -Very fast execution -Instructions are in YAML Popular CM tools… Salt
17. -Plain SSH -Low entry barrier Popular CM tools… Ansible
18. Adoption trends (stackoverflow.com discussions)
19. Avoid a Configuration Management Bake-Off
20. Don’t fuss over the tools, begin today Email: gramachandran@tmns.com Twitter: @goposky Thank you!