If the node is locked, a lookup cannot be performed when an agent
token needs to be generated, which tends to error like this:
ironic_python_agent.ironic_api_client [-] Failed looking up node
with addresses '00:6f:bb:34:b3:4d,00:6f:bb:34:b3:4b' at
https://172.22.0.2:6385. Error 409: Node
c25e451b-d2fb-4168-b690-f15bc8365520 is locked by host 172.22.0.2,
please retry after the current operation is completed..
Check if inspection has completed.
Problem is, if we keep pounding on the door, we can actually worsen
the situation, and previously we would just just let tenacity
retry.
We will now hold for 30 seconds before proceeding, so we have
hopefully allowed the operation to complete.
Also fixes the error logging to help human's sanity.
Change-Id: I97d3e27e2adb731794a7746737d3788c6e7977a0
5ed520df89