Comment 7 for bug 2002154

** workaround **

```
juju remove-relation nova-ironic nova-cloud-controller
# wait until the relation is completely removed
juju add-relation nova-ironic nova-cloud-controller
```

To verify the workaround succeeded run:

$ juju config nova-cloud-controller vip
10.0.0.11
$ juju show-unit nova-ironic/0 | grep serial_console_base_url
          serial_console_base_url: ws://10.0.0.11:6083/
          serial_console_base_url: ws://10.0.0.11:6083/
          serial_console_base_url: ws://10.0.0.11:6083/

the vip needs to be set in the serial_console_base_url key for the relation.