Amazon AWS EC2 + Puppet, get Puppet to know AWS instance tags
- by Piotr Jasiulewicz
I am having a problem with my AWS deployment, fairly new to AWS and Puppet.
So coming to my question - can you distinguish puppet nodes with AWS machine tags or CNAME domains?
A little background about the plan:
have multiple clusters of machines, one php cluster, one legacy php cluster, one java cluster, one perl cluster
control configuration with puppet - still pretty new to puppet but as a developer I like the idea of being able to version control configuration of servers
have autoscaling enabled on those clusters - obviously the main benefit of the cloud that makes the much hight cost when it comes to any reasonable performance worth it (those amazon machines are slower than my phone...)
deployment controlled by Capistrano, this makes things a lot easier
So in AWS you get those super nasty public/private machine dns's... no way you can identify machines on those. In order to easer the problem, seams like AWS want's you to tag everything - so I did. Found a script that makes a CNAME record for each machine with the tag "ShortName" thanks to the Route53 API.
Every machine has a ShortName tag that becomes its CNAME, unfortunately puppet still resolves the private dns name.
I'd like to have
node 'perl-cluster'{}
in puppet, anyone any clue ho to achieve this?
Thanks
