bundle_install attribute git_ssh

[giorgian]

New attribute git_ssh for resource bundle_install: if present, set GIT_SSH environment variable, allowing to install gems from private git repos.

[coderanger]

Hmm, I'll have to ponder this one. I don't usually like putting these kinds of explicit linkages between subsystems. As a workaround for now you can set ENV['GIT_SSH'] directly in your Chef code.

[giorgian]

That's fair, I didn't expect the pull request to be merged as it is, it was a way to start the conversation.

I don't know if anybody uses bundle_install outside application; if they do, there's little difference between setting ENV directly and using my hypothetical git_ssh attribute.

My goal would be to propagate deploy_key to bundle_install, either always or based on some boolean flag: that would make the whole thing very smooth and idiomatic.