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Replace Controller Node and add new using juju

We have two controllers,4 compute nodes and 1 MaaS server .We have Ocata version of Openstack with Maas and juju setup.The issue is one controller has a hardware issue and we need to replace the controller and bring a new controller in place.Services are distributed across both Controllers.How can we replace the faulty controller with new controller using juju.Any leads may be very helpful for us .

Replace Controller Node and add new using juju

We have two controllers,4 compute nodes and 1 MaaS server .We have Ocata version of Openstack with Maas and juju setup.The issue is one controller has a hardware issue and we need to replace the controller and bring a new controller in place.Services are distributed across both Controllers.How can we replace the faulty controller with new controller using juju.Any leads may be very helpful for us .