Useful for upgrade etc., which is preferablly done serially. Example usage: tools/kolla-ansible deploy OR tools/kolla-ansible upgrade Closes-Bug: #1576708 DocImpact Change-Id: I34b2e16f8ce53e472a4682a4738c4ac0f5abf00c
Co-Authored-By: zhubingbing <zhubingbing10@gmail.com> Change-Id: Id83c852e32c3dd583e6128e888ac511634e8eabb Partially-Implements: blueprint cloudkitty