The cluster_def gem needs to be integrated into chef recipes

[http-418]

Right now cluster_def distribution seems to be entirely handled via shell script. It needs to be versioned with our cookbooks, and fully integrated into the chef cookbooks.

• There needs to be a build recipe in bach_repository, so that updated sources are folded into the gems.
• There needs to be an idempotent install recipe somewhere in role[Basic] so that non-bootstrap nodes are updated promptly.
• The idempotent install recipe needs to also handle the bootstrap.
• The gem needs to be versioned so that it can be upgraded on each Chef run if necessary.

[aespinosa]

artifact deployment seems to be there https://github.com/bloomberg/chef-bach/blob/master/cookbooks/bach_repository/recipes/gems.rb#L121-L125

[aespinosa]

test-kitchen of bach_repository is now broken because it depends on bcpc which in turn depends on the cluster_def gem

[aespinosa]

I wonder if cluster-def is better distributed as a library cookbook.

For the bootstrap, we can just setup symlinks or adjust ruby paths to read the path the the library cookbook