The current existing agent erases already set ovsdb managers
entries. In some use cases, cloud admin sets ovsdb managers.
eg, for SDN controllers or monitoring purpose. Neutron agent
shouldn't unconditionally erase the existing ovsdb managers.
This patch implements a new api add_manager (along with
get_manager and remove_manager) to the ovsdb api which will
allow us to configure a manager on a switch without overriding
the existing managers.
Co-Authored-By: sridhargaddam <firstname.lastname@example.org>
Co-Authored-By: Terry Wilson <email@example.com>
The port is in most cases disabled, so to use it, we should first enable
it, and it means that we should still rely on ovs-vsctl for that initial