Followup on https://github.com/kubernetes/kubernetes/pull/111846. This
particular test was left out from that PR because once it was enabled it
started failing. It was desired to merge
https://github.com/kubernetes/kubernetes/pull/111846 irrespective of
this particular test.
The failure in the test was caused due to the
`createFSGroupRequestPreHook` mock CSI driver hook function assuming
that the request object passed to it is an instance of the respective
struct, but it's actually a pointer instead. This resulted in the hook
function not fulfilling its purpose, and the so the test failed.
Fixes instances of #98213 (to ultimately complete #98213 linting is
required).
This commit fixes a few instances of a common mistake done when writing
parallel subtests or Ginkgo tests (basically any test in which the test
closure is dynamically created in a loop and the loop doesn't wait for
the test closure to complete).
I'm developing a very specific linter that detects this king of mistake
and these are the only violations of it it found in this repo (it's not
airtight so there may be more).
In the case of Ginkgo tests, without this fix, only the last entry in
the loop iteratee is actually tested. In the case of Parallel tests I
think it's the same problem but maybe a bit different, iiuc it depends
on the execution speed.
Waiting for the CI to confirm the tests are still passing, even after
this fix - since it's likely it's the first time those test cases are
executed - they may be buggy or testing code that is buggy.
Another instance of this is in `test/e2e/storage/csi_mock_volume.go` and
is still failing so it has been left out of this commit and will be
addressed in a separate one
Currently, the errors in the pkg/api/meta package don't work correctly
with the stdlibs `errors.Is` because they do not implement an `Is`
method, which makes the matching fall through to use reflect to check
for equality. This change fixes that and as a side-effect also adds
support to match on wrapped errors.
The main purpose of this change is to update the e2e Netpol tests to use
the srandard CreateNamespace function from the Framework. Before this
change, a custom Namespace creation function was used, with the
following consequences:
* Pod security admission settings had to be enforced locally (not using
the centralized mechanism)
* the custom function was brittle, not waiting for default Namespace
ServiceAccount creation, causing tests to fail in some infrastructures
* tests were not benefiting from standard framework capabilities:
Namespace name generation, automatic Namespace deletion, etc.
As part of this change, we also do the following:
* clearly decouple responsibilities between the Model, which defines the
K8s objects to be created, and the KubeManager, which has access to
runtime information (actual Namespace names after their creation by
the framework, Service IPs, etc.)
* simplify / clean-up tests and remove as much unneeded logic / funtions
as possible for easier long-term maintenance
* remove the useFixedNamespaces compile-time constant switch, which
aimed at re-using existing K8s resources across test cases. The
reasons: a) it is currently broken as setting it to true causes most
tests to panic on the master branch, b) it is not a good idea to have
some switch like this which changes the behavior of the tests and is
never exercised in CI, c) it cannot possibly work as different test
cases have different Model requirements (e.g., the protocols list can
differ) and hence different K8s resource requirements.
For #108298
Signed-off-by: Antonin Bas <abas@vmware.com>
cpu.cfs_period_us is 100μs by default despite having an "ms" unit
for some unfortunate reason. Documentation:
https://www.kernel.org/doc/html/latest/scheduler/sched-bwc.html#management
The desired effect of that change is to match
k8s default `CPUCFSQuotaPeriod` value (100ms before that change)
with one used in k8s without the `CustomCPUCFSQuotaPeriod` flag enabled
and Linux CFS (100us, 1000x smaller than 100ms).
