I use Salt to run commands across our EC2 environment to do things like restart Varnish, clear logs, and run updates. Paired with Unison for file synchronizatio

I use Salt to run commands across our EC2 environment to do things like restart Varnish, clear logs, and run updates. Paired with Unison for file synchronization it works well when your auto-scaling kicks in and you need your new AMI to be synched from staging.