[chef] deployment and rollback of cookbooks, roles, environments and data bags

[Kirill Timofeev < >]

Folks,

currently we have all chef stuff (cookbooks) in git repository. 
Post-commit hook triggers jenkins job, which updates chef using slightly 
modified version of chef-jenkins synchronization tool. Unfortunately 
this approach allows submission of broken code, which would be revealed 
only while pushing changes to chef-server. I want to modify this 
approach by utilizing update hook and accepting changes only if they 
would be successfully uploaded to chef server. But in order to do this I 
also need some rollback mechanism on chef-server side to discard update 
in case of any issues.

So my question is: do we have in chef server 11.08 any built in 
mechanism for transactional updates or I need to implement some custom 
solution?

Thanks,
Kirill.