[chef] Several machines with the same role - how to restart service node by node?

[Rafał Radecki < >]

Hi Everyone :)

I have a set of frontend machines with a loadbalancer on top of them. There is a need to restart a service on all of them once a new delivery package comes. I now how to do this but I do not know how to force chef to perform the restart on one node at a time FOR SURE. Loadbalancer can be asked for the status of all frontends and a decision which frontend should be made based on returned info but there is a possibility for race conditions in this case.

Have you done something similar? What do you propose?

BR,

Rafal.