|Hah! I've been deep into
SGE (user, trainer, consultant) for years. |
Our setups are pretty similar but I'm hoping to use the AWS cfnCluster stack (https://github.com/awslabs/cfncluster) because it is officially blessed by AWS and since it's a cloudformation template at the end of the day it's both easy to support and extend. It also does all the hard work (auto-scaling etc.) that I don't want to have to code myself via ansible. Since I'm a consultant I need to hand off something to my users that is easy for them to operate moving forward without me.
Your experience using IPA in an HPC environment is very helpful. We also use ansible to automate "ipa-client-install --unattended ..." so scripting the install and remove commands should be pretty straightforward.
Just trying to my compare my appreciation for IPA vs what I saw on the ground at massive HPC installations where the operators jumped through hoops to remove network services that could break user info or affect stablity. I lost count of how many sites I saw people dumping NIS maps and LDAP directories into plaintext files every 4-6hours that they'd spread across the cluster simply to remove any chance that a failed NIS/LDAP query could mess up a node, user or job.
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