Puppet and windows do's and don'ts
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The document provides dos and don'ts for using Puppet on Windows. It recommends upgrading Puppet, writing clean code, managing reboots with Puppet, using Powershell, the registry, and Chocolatey for package management. It advises against getting a domain controller, trying to solve everything in Hiera, mixing slashes, or thinking file-based. Useful links and modules for Windows and Puppet are also listed.
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Puppet and windows do's and don'ts
- 1. Puppet and Windows Do’s and Don’ts
- 2. Who is that guy? and why should I listen to him.
- 3. Quick overview ● Why Windows ● Do’s ● Don’ts ● Recap ● Questions
- 4. Why Windows?
- 5. We need this, and you seem smart
- 6. Do’s
- 7. Upgrade Puppet Ohhh, shiny!
- 8. Clean Code Keep 'em Separated
- 9. Reboots
- 10. Powershell An elegant weapon for a more civilized age.
- 11. Use the registry
- 12. Invest time in Chocolatey Manual Install, ain’t nobody got time for that
- 13. Add checks Failure is an option
- 14. Open Source Code like nobody’s peer reviewing.
- 15. Don’ts
- 16. Get a domain controller There can be only one
- 17. Try to solve it in Hiera Unless you enjoy puzzles
- 18. Mix slashes
- 19. Think file based You are going to have a bad time!
- 20. Recap
- 21. Do’s ● Upgrade puppet ● Clean code ● Reboots ● Powershell ● Registry ● Chocolaty ● Add Checks ● Open Source
- 22. Don’ts ● Do not get a domain controller ● Do not try to solve it in hiera ● Do not mix slashes ● Do not think file based
- 23. Questions?
- 24. Important Links Windows Package Management https://chocolatey.org/ Powershell Objects http://s.basg.nl/1vdVyxx
- 25. List of Modules puppetlabs/mssql rismoney/chocolatey badgerious/windows_env martezr/rdp rmsphd/windows_firewall adenning/winntp puppetlabs/acl puppetlabs/registry puppetlabs/reboot joshcooper/powershell puppetlabs/dism puppetlabs/inifile
- 26. Final Notes Presentation is online http://s.basg.nl/puppetwindows You can find me on Google+ http://google.com/+basgrolleman
Editor's Notes
- Initial Slide
- So, a quick introduction, my name is Bas Grolleman and I have been freelancing for over 8 years now, keeping myself running on a healthy mix of good espresso, sarcasm and whisky. From those 8 years, 6 where spend getting large sets of machines to do the same thing using puppet. And now I’m training to be a Scrum Master, because in practice, when they call in the freelancer there is this huge wishlist combined with an even larger technical debt. And I think scrum is one of the best ways to show quick results but make sure there is enough time for improvement.
- I’ll quickly go over the structure of this presentation.
- I don’t like windows, but that’s not saying much, I don’t like Mac either. And avocado’s, terrible things. Still, here I am on stage talking about Windows, so why? In the end it comes down to a single thing
- This is what happens, the reality of work My first experience was with Kobo, (show ereader), the ebook company Windows setups with puppet needed a lot of reboots, and where inconsistent. Brought it down to 2 reboots and reliable results. I might have actually enjoyed it a few times, as solving problems is fun. But my hair is short for a reason, it’s not all quad cores and multi screen setups.
- I’m a positive guy, so it will mostly be a do’s kind of presentation.
- At least 3.3 - Because of the Reboot module Newer is better, as windows support is improving
- Obvious right? If it is possible to make one piece of code that works on Linux/Windows without OS Specific stuff, do that. You can cheat with default parameters. When this is not the case, do not spread case statements everywhere Put Generic stuff at the top Case statement with Kernel for the rest Add comments when you skip stuff and why You might want to use separate files ( profile::base::windows, profile::base::linux )
- Windows requires reboots, and I might want to have a chat with the guy that thought rebooting wasn’t so bad. This requires some thought, because your puppet runs will be broken up Check out the puppetlabs/reboot module Fixes the issue by stopping puppet for reboot, avoiding half configured stuff Figure out what pieces of code go together Limit the amount of reboots Use fixed versions, nobody is happy when half the datacenter starts rebooting. Avoid reboots in future
- I don’t know powershell in depth, but I steal But I know enough to see what kind of code I’m reading Get a good powershell module (Joshcooper or Puppetlabs) Have a look at Powershell ISE when writing scripts Lead Developer - Jeffrey Snover, had excellent talk during Devops in Amsterdam
- puppetlabs/Registry Lot’s of stuff done in registry instead of files, crucial difference
- rismoney/chocolatey module I skipped this, but it saves a lot of time Package management / auto upgrades
- Create a module with just checks Windows Only Linux Only Use the $caller_module_name variable and a define to give clear hints
- Fork, even without code getting pulled, someone might help out on your version of the module Lot’s of work needs to be done Don’t worry about doing pull requests
- A few things I would recommend you should not be doing
- This will result in 2 systems wanting to control If required, make sure to check if changes aren’t returning frequently Avoid user management with a domain controller
- Fix stuff in one place If it only works when you have a set of hiera code, it’s hard to debug It’s even harder to implement later
- Mix Slashes, try to use backwards slashes all the time Works for file Doesn’t work for exec When in doubt, escape the slashes, it will work on both cases
- Windows is object based Files should be the last place to look Check registry Check objects using powershell
- This is a future reference for those looking at the presentation later If I have time to spare, I could go into one of the modules more in-depth