SaltStack and You

Lightning talk given at DjangoCon 2012.

Transcript

1. Salt Thursday, September 6, 12 This talk is about salt
2. http://www.flickr.com/photos/pboyd04/2081320295/ Thursday, September 6, 12 No, not this kind
3. Thursday, September 6, 12 This is SaltStack
4. Remote Execution Manager Thursday, September 6, 12 Mostly referred to as a Remote Execution Manager
5. Wut?! Thursday, September 6, 12 ... which usually gets this reaction
6. Thursday, September 6, 12 What does it actually do? What can I use it for?
7. http://www.flickr.com/photos/crazycups/3262757577/ Thursday, September 6, 12 Developers shouldn't be stuck in Groundhog Day. Stop repeating yourself.
8. $ ssh root@myserver.com Thursday, September 6, 12 (poll the audience)
9. $ ssh root@myserver.com Thursday, September 6, 12 D.R.Y. applies to SSH
10. root:~$ vi /etc/nginx.conf Thursday, September 6, 12 (poll the audience)
11. root:~$ vi /etc/nginx.conf Thursday, September 6, 12 D.R.Y. applies to config management
12. fabric Thursday, September 6, 12 Might be familiar with existing tools, like fabric (lightweight abstraction over SSH)
13. fabric + concurrency + failure handling + speed Thursday, September 6, 12 "Imagine you want to run a command on a thousand hosts. Okay -- now it's failed on four of them. Find them." Salt is built on ZeroMQ.
14. Thursday, September 6, 12 Chef and Puppet are great at what they do
15. - ruby - hassle + more than configs Thursday, September 6, 12 But we can do better. Salt is written by Pythonistas _for_ Pythonistas. You'll grok the terminology and have a working environment faster than any of the alternatives.
16. Thursday, September 6, 12 Short intro: bootstrap your master node
17. Thursday, September 6, 12 Bootstrap your minions
18. a b c Thursday, September 6, 12 Define your states, which can consist of packages, config files, data, other commands, or really whatever you want
19. web web web a b c Thursday, September 6, 12 Label your minions as being members of certain groups
20. web web web a b c db db Thursday, September 6, 12 Label your minions as being members of certain groups
21. web web web a b c db db static static Thursday, September 6, 12 Label your minions as being members of certain groups
22. web web web a b c db db static static cache cache Thursday, September 6, 12 Label your minions as being members of certain groups
23. web web web a b c db db static static cache cache $ cmd Thursday, September 6, 12 Go to town, applying states to groups, or issuing one-off commands. Tie this into an automated deployment system of your CI service for bonus points.
24. Thanks! Thursday, September 6, 12