Jiri Stransky e9e2b4d104 Don't delete br-ex on upgrade in multinode jobs
The hook for os-net-config in multinode NIC config templates contains
a call to `ovs-vsctl del-br br-ex` to remove the bridge we got from
nodepool and initialize network config. We need to avoid executing
that again on upgrade, or the Ansible process running the upgrade gets
stuck.

Change-Id: Ie36342402426d74fd528e320d60adc951bf8c9ac
Closes-Bug: #1772040
2018-05-21 17:03:43 +02:00
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