DevOps: Python tools to get started

Presented at Mini PyCon Malaysia 2014 (March 15)

1. DevOps Python tools to get started
2. DevOps is … “… development and operations teams work on software releases in tandem, rather than throwing code back and forth across a silo.”
3. Make no mistake DevOps is a culture In [1]: “tools make a culture” Out [1]: False
4. Background
5. Perspective Startup culture, but tools are useful everywhere
6. Carousell P2P Marketplace App iOS, Android (Web?)
7. Pony Powered Django + Django Rest Framework
8. Not too long ago 1 Technical Co-founder ! Edits code on production server Live reload
9. Moments ago 4 Engineers: iOS, Android, CTO, Backend + Infrastructure ! Every engineer somewhat involved with Backend code
10. TODO • Deploy • Monitor Make it easy to: • Break things Make it difficult to:
11. Deployment
12. Deployment options - Fabric + git / svn /… ! - Salt / Ansible / Chef ! - Native packaging (.rpm, .deb)
13. Fabric (i) from fabric.api import env, run ! hosts = [‘app.server.com’] ! def deploy(): run(“git pull && … ”) fabfile.py
14. Fabric (ii) $ fab deploy [app.server.com] run: git pull && … [app.server.com] out: [output]
15. Fabric: the good parts Simple, easy to start with ! @parallel to speed up for multiple servers
16. Salt Configuration management, commonly used for server provisioning ! Chef, Puppet, etc
17. Salt + Git
18. Fabric + Salt + Git fab deploy salt “app*.server.com” … app1.server.com app2.server.com
19. TODO • Deploy • Monitor Make it easy to: • Break things Make it difficult to:
20. Monitor and Control
21. Controlling processes Tools: Supervisor, Circus Allows you to control and monitor your app processes
22. Supervisor (i) [program:my_app] command=python my_app.py
23. Supervisor (ii) $ supervisorctl status my_app RUNNING pid 7910, uptime 01:36:44
24. Supervisor (iii) Supervisor exposes a XMLRPC interface Allows remote monitoring and control of processes
25. TODO • Deploy • Monitor Make it easy to: • Break things Make it difficult to:
26. Continuous Integration
27. Continuous Integration Popular CIs: Jenkins, TravisCI, CircleCI
28. http://buildbot.net/
29. Jenkins + Django
30. Automated Feedback
31. Done! • Deploy • Monitor Make it easy to: • Break things Make it difficult to:
32. All together now
33. Github Workflow Pull Request Continuous Integration Automatic Deployment
34. pull request Jenkins CI Test Deployment Report on Github salt [success] [fail]
35. Beyond Python Docker Vagrant Virtual Machines! (LXC) Containers!
36. Thanks! @victorneo (psst. we are looking for web devs)