![Don’t assume EC2/RackSpace/MyCloudInc
# Allow app servers to access DB
-A INPUT -p tcp
-s <%= node[:ec2][:local_ipv4] %>
--dport <%= node[:mysql][:port] %>
-j ACCEPT](https://image.slidesharecdn.com/sfdevops052011hd-110526130156-phpapp02/85/SF-DevOps-Introducing-Vagrant-33-320.jpg)
![Don’t assume EC2/RackSpace/MyCloudInc
# Allow app servers to access DB
-A INPUT -p tcp
-s <%= local_ip(node) %>
--dport <%= node[:mysql][:port] %>
-j ACCEPT](https://image.slidesharecdn.com/sfdevops052011hd-110526130156-phpapp02/85/SF-DevOps-Introducing-Vagrant-34-320.jpg)
![Don’t assume EC2/RackSpace/MyCloudInc
# Returns the local-network IP of a node
# based on the environment.
def local_ip(node)
return “127.0.0.1” if in_vagrant?
return node[:ec2][:local_ipv4] if in_ec2?
raise “Unknown server environment.”
end](https://image.slidesharecdn.com/sfdevops052011hd-110526130156-phpapp02/85/SF-DevOps-Introducing-Vagrant-35-320.jpg)
![Role Composition
run_list => [
“role[base]”,
“role[kiip_mongodb]”,
“role[kiip_memcached]”,
“role[kiip_web]”,
“role[kiip_utility]”
]
Normally different servers.
But no problem on one!](https://image.slidesharecdn.com/sfdevops052011hd-110526130156-phpapp02/85/SF-DevOps-Introducing-Vagrant-41-320.jpg)
SF DevOps: Introducing Vagrant
- 1. Vagrant
- 4. Vagrant With a focus on Ops
- 5. Agenda
- 7. Agenda What is Vagrant Why use Vagrant
- 8. Agenda What is Vagrant Why use Vagrant DevOps with Vagrant in mind
- 10. The Grid
- 11. A tool for building and distributing virtualized environments.
- 12. A local cloud.
- 13. Create and tear down virtual machines
- 14. Create and tear down virtual machines Use automation to provision and configure
- 15. Create and tear down virtual machines Use automation to provision and configure Network multiple virtual machines
- 16. Create and tear down virtual machines Use automation to provision and configure Network multiple virtual machines Package and distribute VM images
- 18. User space Browser Editor Queue Other Music Server Server Web DB App IRC IM Server Server Server Operating System
- 20. No isolation
- 22. No isolation No repeatability No verification
- 23. User space Virtualized OS Browser Editor Web App DB Server Server Server IRC IM Operating System
- 24. Isolation
- 26. Isolation Mirror production Test Ops scripts with a free server
- 27. Isolation Mirror production Test Ops scripts with a free server Faster onboarding
- 28. Isolation Mirror production Test Ops scripts with a free server Faster onboarding Designers can do it, too!
- 29. Vagrant DevOps
- 30. Goal: Develop Cookbooks/Modules to run in a VM and production.
- 31. Little extra effort. Big gain. Good practices.
- 32. Little extra effort. Big gain. Good practices.
- 33. Don’t assume EC2/RackSpace/MyCloudInc # Allow app servers to access DB -A INPUT -p tcp -s <%= node[:ec2][:local_ipv4] %> --dport <%= node[:mysql][:port] %> -j ACCEPT
- 34. Don’t assume EC2/RackSpace/MyCloudInc # Allow app servers to access DB -A INPUT -p tcp -s <%= local_ip(node) %> --dport <%= node[:mysql][:port] %> -j ACCEPT
- 35. Don’t assume EC2/RackSpace/MyCloudInc # Returns the local-network IP of a node # based on the environment. def local_ip(node) return “127.0.0.1” if in_vagrant? return node[:ec2][:local_ipv4] if in_ec2? raise “Unknown server environment.” end
- 36. Short-circuit Recipes/Manifests INFO: Chef Run complete in 1442.890442 seconds INFO: Running report handlers INFO: Report handlers complete
- 38. Short-circuit Recipes/Manifests # Only install certain software when not # in Vagrant. if !in_vagrant? include_recipe “flume::node” include_recipe “kiip_monitoring::client” ... end
- 39. Short-circuit Recipes/Manifests INFO: Chef Run complete in 946.418511 seconds INFO: Running report handlers INFO: Report handlers complete Not great, but I’ll take 50% speedups.
- 40. Flexible Configuration attributes = { :kiip_mongo => { :mount_ebs => false }, :kiip_web => { :app_source => "folder" }, ... }
- 41. Role Composition run_list => [ “role[base]”, “role[kiip_mongodb]”, “role[kiip_memcached]”, “role[kiip_web]”, “role[kiip_utility]” ] Normally different servers. But no problem on one!
- 42. DevOps Zen
- 43. Vagrant Is it battle tested?