Today I’ve lost the Chef validation key of one the servers that we have around. I haven’t found how to recover it in a quick Google search, so… good reason to write this short post.
The validation “thing”, is a client (not an user) in Chef which has permission to register new Chef clients to the server. To regenerate you have to remove the client and create it again:
knife client delete --delete-validators org-validator
knife client create org-validator --validator -f file_roots/chef-client/files/chef-validator-linode.pem
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