7efbbcc2d9
Using AMQP-based RPC can be an overkill in case of ironic, especially when used standalone. This change allows using a built-in JSON RPC implementation instead. This implementation does not currently support the object indirection API, which does not seem to be used anywhere anyway. The standalone and API test jobs are changed to use JSON RPC. Story: #2004874 Task: #29141 Change-Id: I7cc95935d6bdae43fab5dfbd544c8e6d65fcc38d