1. Continuous Integration With Fabric http://docs.fabfile.org Varun Batra @ Deft Infotech Pvt. Ltd.

2. I am Lazy! I need one command to deploy codes. >fab deploy That’s what I was talking about Varun Batra @ Deft Infotech Pvt. Ltd.

3. What if something goes wrong? >fab deploy This command should handle that as well and report me. Varun Batra @ Deft Infotech Pvt. Ltd.

4. Common Principle of CI Code Repository (I use GIT) Fast & Auto Build Self Testing ‘Test Environment’ is not ‘Build Environment’ Auto Deployment: merge to master/deploy branch (GIT), this should auto deploy it Self Sustainable System, e.g. if db is destroyed, it should automatically recreated by latest backup Varun Batra @ Deft Infotech Pvt. Ltd.

5. My Deployment Principle Based on my experience Based on guys’s ‘better than me’ experience Let me know if you can improve because you can Varun Batra @ Deft Infotech Pvt. Ltd.

7. Why Fabric? I learned it in half day It can do what I need Few seconds installation Varun Batra @ Deft Infotech Pvt. Ltd.

8. GIT >git branch something_cool >git checkout something_cool >git commit -a -m ‘what I did?’ >git checkout master >git merge something_cool >git push git checkout -b something_cool combines first two commands Varun Batra @ Deft Infotech Pvt. Ltd.

9. Fabric: library + command-line tool Fabric is a Python (2.5 or higher) library and command-line tool for streamlining the use of SSH for application deployment or systems administration tasks. I copied from their website, I am lazy Varun Batra @ Deft Infotech Pvt. Ltd.

10. Fabric Features Runs local and remote commands Runs normal or sudo commands Upload & Download files Prompt for input Simultaneous deploying in multiple server Output in different colors like red(text,bold=False) Varun Batra @ Deft Infotech Pvt. Ltd.

11. Fabric combines fabfile.pyfab Varun Batra @ Deft Infotech Pvt. Ltd.

12. There is a catch each run or sudo call has its own distinct shell session. run('cd foo' && 'mkdir bar') is not run('cd foo') run('mkdir bar') is with('cd foo') run('mkdir bar') Varun Batra @ Deft Infotech Pvt. Ltd.

13. How discussed deployment process should be? Varun Batra @ Deft Infotech Pvt. Ltd.

14. Processing Output Output of ‘run’ command is stored in ‘url’ variable Varun Batra @ Deft Infotech Pvt. Ltd.

15. Deploy with options? Passing parameters? fab deploy:env=production fab deploy:production (in order of params) !Passing True is string i.e. ‘True’ not True Deploy to many hosts? env.hosts = ['user@example1.com', ' user@example2.com '] fab –H user@example1.com, user@example2.com deploy Show fewer output? with hide('output','running'), settings(warn_only=True): Varun Batra @ Deft Infotech Pvt. Ltd.

16. @serial VS @parallel Varun Batra @ Deft Infotech Pvt. Ltd.

17. More decorators? @hosts @roles @runs_once !caution with @parallel @task @with_settings @serial @parallel Varun Batra @ Deft Infotech Pvt. Ltd.

18. Context Managers Remember ‘with’? with('cd ~/git_repo/'): run('git pull') #cd ~/git_repo/ && git pull with hide('running', 'stdout', 'stderr'): do_something() Varun Batra @ Deft Infotech Pvt. Ltd.

19. Context Manager cont’d.. cd with lcd path prefix settings show Varun Batra @ Deft Infotech Pvt. Ltd.

20. Contributions File/directory management comment/uncomment, sed, append, contains, exists, upload_template, first Project Tools rsync_project, upload_project Django integration Varun Batra @ Deft Infotech Pvt. Ltd.

21. Lets look at fabfile.py Varun Batra @ Deft Infotech Pvt. Ltd.

22. But wait.. What about auto- deployment? cron VS service Varun Batra @ Deft Infotech Pvt. Ltd.

23. fab prompt_for_any_questions Varun Batra IT Consultant Deft Infotech Pvt. Ltd. skype:varunb.deftinfotech http://varunbatra.com CodeVarun@gmail.com https://www.linkedin.com/in/varunbatra/ https://www.facebook.com/VarunBatraIT https://twitter.com/batravarun fab stay_in_touch Varun Batra @ Deft Infotech Pvt. Ltd.