Refactor existing tests that run AddPodToVolume with a single pod / volume
to a table. And add few extra tests, covering existing ReadWriteOncePod
functionality.
The Allocate call used to call back into the claim lister for each node. This
was significant work which showed up at the top of the CPU profile. It's
okay to list only once during PreFilter because the Filter call does not change
the claim status between Allocate calls.
goos: linux
goarch: amd64
pkg: k8s.io/kubernetes/test/integration/scheduler_perf
cpu: Intel(R) Core(TM) i9-7980XE CPU @ 2.60GHz
│ before │ after │
│ SchedulingThroughput/Average │ SchedulingThroughput/Average vs base │
PerfScheduling/SchedulingWithResourceClaimTemplateStructured/5000pods_500nodes-36 15.04 ± 0% 18.06 ± 2% +20.07% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/empty_100nodes-36 105.5 ± 1% 104.7 ± 2% ~ (p=0.485 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/empty_500nodes-36 95.83 ± 1% 96.62 ± 1% ~ (p=0.063 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/half_100nodes-36 79.67 ± 3% 83.00 ± 2% +4.18% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/half_500nodes-36 27.11 ± 5% 32.45 ± 7% +19.68% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/full_100nodes-36 84.00 ± 3% 95.22 ± 7% +13.36% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/full_500nodes-36 7.110 ± 6% 9.111 ± 10% +28.15% (p=0.002 n=6)
geomean 41.05 45.86 +11.73%
- Split the code that tries to get node name from SSR into
a new function getNodeNameFromSSR(). Unit test the function.
- Fix error that the "system:nodes:" prefix was not trimmed.
- Fix mislearding errors around FetchInitConfigurationFromCluster.
This function performs multiple actions, and the "get node"
action can also be of type apierrors.NotFound(). This creates
confusion in the returned error in enforceRequirement during
upgrade. Fix this problem.
Adds a utility function `ResetLabelValueAllowLists` to reset the allow lists for label values. This facilitates testing by allowing tests to clear the global state between runs and avoid unintended side effects.
The initial work of this had been merged before
this PR but was not yet in use. This simplifies
the implementation and adds some basic type
sanity checking.
Co-authored-by: Jiahui Feng <jhf@google.com>
Make the following changes:
- When dryrunning if the given kubeconfig does not exist
create a DryRun object without a real client. This means only
a fake client will be used for all actions.
- Skip the preflight check if manifests exist during dryrun.
Print "would ..." instead.
- Add new reactors that handle objects during upgrade.
- Add unit tests for new reactors.
- Print message on "upgrade node" that this is not a CP node
if the apiserver manifest is missing.
- Add a new function GetNodeName() that uses 3 different methods
for fetching the node name. Solves a long standing issue where
we only used the cert in kubelet.conf for determining node name.
- Various other minor fixes.
