* kubectl debug: print container messages
This provides feedback to the user, for example that the server is
unable to pull the debug container image.
* Label debug container updates as warnings
Co-authored-by: Eddie Zaneski <eddiezane@gmail.com>
Co-authored-by: Eddie Zaneski <eddiezane@gmail.com>
at present the spec.csi.secretRef name has to be DNS1035 label
format and it should fail if we use DNSSubdomain secretRef in
the secretReference field of CSI spec. The newly added test cases
validate this behaviour in validation tests for controllerPublish,
nodePublish and nodeStage secretRef formats.
Additionally csiExpansionEnabled struct field also removed from
the validation function.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Instead of doing (almost) the same thing from the three different
methods (Create, Update, Destroy), move the functionality to
libctCgroupConfig, replacing updateSystemdCgroupInfo.
The needResources bool is needed because we do not need resources
during Destroy, so we skip the unneeded resource conversion.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Commit 79be8be10e made hugetlb settings optional if cgroup v2 is used and
hugetlb is not available, fixing issue 92933. Note at that time this was only
needed for v2, because for v1 the resources were set one-by-one, and only for
supported resources.
Commit d312ef7eb6 switched the code to using Set from runc/libcontainer
cgroups manager, and expanded the check to cgroup v1 as well.
Move this check earlier, to inside m.toResources, so instead of
converting all hugetlb resources from ResourceConfig to libcontainers's
Resources.HugetlbLimit, and then setting it to nil, we can skip the
conversion entirely if hugetlb is not supported, thus not doing the work
that is not needed.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Commit ecd6361f added setting PidsLimit to Create and Update.
Commit bce9d5f2 added setting PidsLimit to m.toResources.
Now, PidsLimit is assigned twice.
Remove the duplicate.
Fixes: bce9d5f2
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
There's no need to call m.Update (which will create another instance of
libcontainer cgroup manager, convert all the resources and then set
them). All this is already done here, except for Set().
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
- Also update test-cmd.sh to pass a signing ca to the kube controller
manager, so CSRs work properly in integration tests.
Signed-off-by: Margo Crawford <margaretc@vmware.com>
All the controllers should use context for signalling termination of communication with API server. Once kcm cancels context all the cert controllers which are started via kcm should cancel the APIServer request in flight instead of hanging around.
This commit includes all the changes needed for APIServer. Instead of modifying the existing signatures for the methods which either generate or return stopChannel, we generate a context from the channel and use the generated context to be passed to the controllers which are started in APIServer. This ensures we don't have to touch APIServer dependencies.
It was possible to patch images in the YAML files via KUBE_TEST_REPO, but it
was not possible to know in advance which images might be needed. Now
-list-images also includes all images referenced by the
test-manifest/storage-csi YAML files.
Upon reconsidering as to the purpose of the test i.e to test the lock
contention flags (--lock-file-contention and --lock-file), it makes
sense that we test only the actual functionality which is the kubelet
should stop once there is a lock contention.
In no way it is the responsiblity of the kubelet to restart, which would
be the responsiblity of a higher system such as systemd.
Hence the removal of the check for releasing the lock and checking for
whether the kubelet is healthy again or not seem out of scope from
kubelet's responsiblities.
Signed-off-by: Imran Pochi <imran@kinvolk.io>
Mount utils support resizing of btrfs volume, however it lacks btrfs
device block size and total size detection needed to determine if
resize is needed.
Adding btrfs support is useful for certain CSI drivers (e.g. Azure)
which now have to implement custom solution for btrfs resize.
With this patch it should be easy for such drivers to use mount-utils
module instead and help unify (and correct) the resize flows.
