As with change Ia963a093a1b26d90b4de2e8fc623031cf175aece, we can
sometimes cache failed port binding information which we'll see on
startup. Long term, the fix for both issues is to figure out how this is
being cached and stop that happening but for now we simply need to allow
the service to start up.
To this end, we copy the approach in the aforementioned change and
implement a translation function in os_vif_util for unbound which
will make the plug_vifs code raise VirtualInterfacePlugException which
is what the _init_instance code in ComputeManager is already handling.
This has the same caveats as that change, namely that there may be
smarter ways to do this that we should explore. However, that change
also included a note which goes someway to explaining this.
Change-Id: Iaec1f6fd12dba8b11991b7a7595593d5c8b1db50
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
Related-bug: #1784579
Closes-bug: #1809136
(cherry picked from commit 1def76a1c4)
(cherry picked from commit bc0a5d0355)
79a90d3702