hostPath volume plugin creates a directory within /tmp on host machine, to be mounted as volume.
inject-pod writes content to the volume, and a client-pod tried the read the contents and verify.
when SELinux is enabled on the host, client-pod can not read the content, with permission denied.
running the client-pod as privileged, so that it can access the volume content, even when SEinux is enabled on the host.
This parameter ensures that CPUs are always allocated in groups of size
'cpuGroupSize'. This is important, for example, to ensure that all CPUs (i.e.
hyperthreads) from the same core are handed out together.
Signed-off-by: Kevin Klues <kklues@nvidia.com>
As part of this, pull out all of the existing "TakeByTopology" tests and have
them be called by the original TestTakeByTopologyNUMAPacked() as well as the
new TestTakeByTopologyNUMADistributed() test. In a subsequent commit, we will
add some tests that should differ between these two algorithms.
Signed-off-by: Kevin Klues <kklues@nvidia.com>
The first implements the original algorithm which packs CPUs onto NUMA nodes if
more than one NUMA node is required to satisfy the allocation. The second
disitributes CPUs across NUMA nodes if they can't all fit into one.
The "distributing" algorithm is currently a noop and just returns an error of
"unimplemented". A subsequent commit will add the logic to implement this
algorithm according to KEP 2902:
https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/2902-cpumanager-distribute-cpus-policy-option
Signed-off-by: Kevin Klues <kklues@nvidia.com>
Enable feature by default.
Update integration tests for other features to assume that finalizers are present.
Change-Id: Ie969344f572627dba882c0e862e5700dadaf3026
As well as feature gate are locked, the tests when this feature is
disabled will crash. So we should remove them together with locking
the feature.
Signed-off-by: Konstantin Misyutin <konstantin.misyutin@huawei.com>
This batch of tests adds a fake topology on which each numa node
has multiple sockets. We didn't find yet a real HW topology in the wild
like this, but we need one to fully exercise the code.
So, until we find a HW topology, we add a fake one flipping
the NUMA/socket config of the existing xeon dual gold 6320.
Signed-off-by: Francesco Romani <fromani@redhat.com>
This batch of tests adds a real topology on which each physical socket
has multiple NUMA zones. Taken by a real dual xeon 6320 gold.
Signed-off-by: Francesco Romani <fromani@redhat.com>
The exisiting unit tests where performing subtests without
actually using the full features of the testing package
(https://pkg.go.dev/testing#hdr-Subtests_and_Sub_benchmarks)
Update them with fairly minimal changes. The patch is deceptively
large because we need to move the code inside a new block.
Signed-off-by: Francesco Romani <fromani@redhat.com>
User the `cmp.Diff` package in the unit tests, moving away from
`reflect.DeepEqual`. This gives us a clearer picture of the differences
when the tests fail.
Signed-off-by: Francesco Romani <fromani@redhat.com>
This allows us to get rid of the check for determining which one is higher all
throughout the code. Now we just check once and instantiate an interface of the
appropriate type that makes sure the ordering in the hierarchy is preserved
through the appropriate calls.
Signed-off-by: Kevin Klues <kklues@nvidia.com>
