The kube-upgrade strategy invokes a synchronous POST
operation to start and cleanup a kubernetes upgrade.
kube-upgrade-start takes about 3 seconds.
kube-upgrade-complete takes about one second.
The old code would ignore the results of those REST API
calls, and enter a polling mode to check the host state.
This could take up to two minutes to complete.
Polling is un-neccessary (for these steps), and by using
the results from the NFV plugin being invoked, the step
can quickly be completed.
This reduces the time of a kube-upgrade strategy by
over three minutes.
Test Plan:
PASS: AIO-SX kube upgrade
Story: 2010565
Task: 48152
Signed-off-by: Al Bailey <al.bailey@windriver.com>
Change-Id: Icb511e70eea445b0d07a139d437e018fb3c505f3
c908b9625d