This reverts commit
c15fd76ee9. Most (all?) of the hostpath
tests and several other tests started to fail again in
gce-scale-master-correctness after re-enabling the controller. This
shows that it was not just the obsolete agent which causes scalability
problems, but also the controller.
It has to be disabled until the scalability problems are addressed.
CSI driver need to pass special mount opts to XFS filesystem to be able to
mount a volume + its clone or its restored snapshot on the same node. Add a
test to exhibit this behavior.
The test is optional for now, giving CSI drivers time to fix it.
It was disabled together with the agent to avoid test failures in
gce-master-scale-correctness (https://github.com/kubernetes/kubernetes/issues/102452). That
solved the problem, but we still need to check whether the controller
alone works.
They are not needed for any of the tests and may be causing too much
overhead (see
https://github.com/kubernetes/kubernetes/issues/102452#issuecomment-854452816).
We already disabled them earlier and then re-enabled them again
because it wasn't clear how much overhead they were causing. A recent
change in how the sidecars get
deployed (https://github.com/kubernetes/kubernetes/pull/102282) seems
to have made the situation worse again. There's no logical explanation
for that yet, though.
(cherry picked from commit 0c2cee5676e64976f9e767f40c4c4750a8eeb11f)
As seen in https://github.com/kubernetes/kubernetes/issues/102452, we
currently don't have pod events for the CSI driver pods because of the
different namespace and would need them to determine whether the
driver gets evicted.
Previously, only changes of the pods where logged. Perhaps even more
interesting are events in the namespace.
The "[Feature:SCTP]" tag was needed on "should not allow access by TCP
when a policy specifies only SCTP" back when SCTP was alpha, because
it wasn't possible to create a policy that even mentioned SCTP without
enabling the feature gate. This no longer applies, and the tag was
removed from the original copy of network_policy.go, but accidentally
got left behind in the netpol/ version.
Likewise, the newly-added "should not allow access by TCP when a
policy specifies only UDP" got tagged "[Feature:UDP]", but this was
never necessary, and is inconsistent with other UDP tests anyway.
Similarly, we need "[Feature:SCTPConnectivity]" on tests that make
SCTP connections, because that functionality is not available in all
clusters, but "[Feature:UDPConnectivity]" is unnecessary and
inconsistent.
