Ansible (PyCON 2014, Montreal)

This is not a presentation for reading by itself, but is uploaded for those who are watching along with the video here: https://www.youtube.com/watch?v=Qi0AhK7PMCI

Transcript

1. Automating With Michael DeHaan
2. BACKGROUND...
3. THE ANSIBLE STORY... Red Hat: Cobbler/Func Other Tools... Hosted Deployments... Lightbulb...
4. WHAT IS ANSIBLE?
5. APPLICATION DEPLOYMENT
6. CONFIGURATION MANAGEMENT
7. CLOUD PROVISIONING
8. AD-HOC TASK EXECUTION
9. MULTI-TIER ORCHESTRATION & CONTINOUS DEPLOYMENT
10. PHILOSOPHY
11. AGENTLESS!
12. SHOULDN'T BE YOUR DAY JOB
13. KEEP THINGS SIMPLE / AUDITABILITY
14. BATTERIES INCLUDED (224 MODULES IN CORE)
15. SOME STATISTICS AND INFO
16. ANSIBLE IS ~2 YEARS OLD
17. TOP 5 MOST CONTRIBUTIONS ON GITHUB IN 2013 (665+) Others were Angular.js, Rails, CocoaPods, and Homebrew
18. TOP 10 PYTHON PROJECT ON GITHUB FOR STARS (5400+) & FORKS (1600+)
19. NEW CONTRIBUTOR ADDED LESS THAN EVERY ~1.3 DAYS
20. USE CASES EXAMPLES edX.org and Fedora Infrastructure - OSSed content! Gawker - continuously deploying 5-10 times an hour MapR - product installer Rackspace - orchestrate production OpenStack upgrades Care.com, GoPro, Hootsuite, Evernote, ...
21. EXAMPLE TIME!
22. INVENTORY [ w e b s e r v e r s ] o n e . e x a m p l e . c o m t w o . e x a m p l e . c o m
23. AD-HOC MODE # a n s i b l e w e b s e r v e r s - m p i n g o n e . e x a m p l e . c o m | s u c c e s s > > { " p i n g " : " p o n g " } t w o . e x a m p l e . c o m | s u c c e s s > > { " p i n g " : " p o n g " } # a n s i b l e w e b s e r v e r s - m s h e l l - a " s h u t d o w n - t 1 2 0 "
24. PLAYBOOKS # a n s i b l e - p l a y b o o k s i t e . y m l - h o s t s : w e b s e r v e r s r o l e s : - b a s e - w e b s e r v e r - m o n i t o r e d
25. ROLES STRUCTURE r o l e s / w e b s e r v e r / t a s k s / h a n d l e r s / f i l e s / t e m p l a t e s / d e f a u l t s / v a r s / m e t a /
26. EXAMPLE TASK FILE - y u m : n a m e = h t t p d s t a t e = i n s t a l l e d - t e m p l a t e : s r c = h t t p d . c o n f . j 2 d e s t = / e t c / h t t p d / h t t p d . c o n f n o t i f y : - r e s t a r t h t t p d - s e r v i c e : n a m e = h t t p d s t a t e = r u n n i n g
27. TIPS!
28. ANSIBLE GALAXY galaxy.ansible.com about to come out of beta backed by github (issue tracking, etc) ~450 roles and 2500 users in ~4 months a n s i b l e - g a l a x y i n i t r o l e n a m e a n s i b l e - g a l a x y i n s t a l l u s e r n a m e . r o l e n a m e
29. ANSIBLE VAULT a n s i b l e - v a u l t c r e a t e f o o . y m l a n s i b l e - v a u l t e d i t f o o . y m l a n s i b l e - v a u l t e n c r y p t f o o . y m l a n s i b l e - v a u l t d e c r y p t f o o . y m l a n s i b l e - v a u l t r e k e y f o o . y m l a n s i b l e - p l a y b o o k f o o . y m l - - a s k - v a u l t - p a s s
30. ROLLING UPDATE EXAMPLE - h o s t s : w e b s e r v e r s s e r i a l : 5 p r e _ t a s k s : - n a m e : t a k e o u t o f l o a d b a l a n c e r p o o l l o c a l _ a c t i o n : c o m m a n d / u s r / b i n / t a k e _ o u t _ o f _ p o o l { { i n v e n t o r y _ h o s t n a m e } } r o l e s : - c o m m o n - w e b s e r v e r - m o n i t o r e d p o s t _ t a s k s : - n a m e : a d d b a c k t o l o a d b a l a n c e r p o o l l o c a l _ a c t i o n : c o m m a n d / u s r / b i n / a d d _ b a c k _ t o _ p o o l { { i n v e n t o r y _ h o s t n a m e } }
31. EXTENDING ANSIBLE WITH PYTHON ...
32. MODULES can implement in any language that can emit JSON or even return key=value and write one in bash core modules are all Python
33. PLUGINS lookup plugins / enumerations connection plugins action plugins filter plugins (extend Jinja2) inventory (next slide)
34. INVENTORY SCRIPTS Examples include OpenStack, AWS, and Rackspace any executable program that can emit JSON core/examples plugins are all Python
35. API/REST API python API for runner -- not the main purpose of the app REST API is part of Tower, fully discoverable, annotated, and awesome props to Django-REST-Framework
36. INTERNALS
37. REQUIREMENTS 2.6+ on server, 2.4+ on nodes python 2 for now (with good reasons) RHEL 5, I'm looking at you no bootstrapping philosophy
38. MODULES WE USE HEAVILY multiprocessing native openssh and paramiko PyYAML, json Jinja2 subprocess
39. CONTACT INFO & RESOURCES http://ansible.com michael@ansible.com twitter: @ansible & @laserllama
40. WE ARE HIRING! (DURHAM, NC) API (Django, django-rest-framework, Celery, ...) QA (Automation) UI (Angular.js) Core (Python) email michael@ansible.com