Errors from staticcheck:
pkg/volume/azure_dd/azure_common.go:68:2: var winDiskNumFormat is unused (U1000)
pkg/volume/csi/csi_block.go:97:2: field volumeInfo is unused (U1000)
pkg/volume/csi/csi_block_test.go:56:6: func prepareBlockUnmapperTest is unused (U1000)
pkg/volume/csi/csi_client.go:108:2: const initialDuration is unused (U1000)
pkg/volume/csi/csi_client.go:109:2: const factor is unused (U1000)
pkg/volume/csi/csi_client.go:110:2: const steps is unused (U1000)
pkg/volume/csi/csi_client_test.go:83:8: this value of err is never used (SA4006)
pkg/volume/csi/csi_mounter.go:76:2: field options is unused (U1000)
pkg/volume/csi/csi_mounter_test.go:454:13: this value of err is never used (SA4006)
pkg/volume/csi/csi_plugin_test.go:766:16: this value of err is never used (SA4006)
pkg/volume/csi/csi_plugin_test.go:861:13: this value of err is never used (SA4006)
pkg/volume/csi/csi_plugin_test.go:1186:13: this value of err is never used (SA4006)
pkg/volume/csi/csi_plugin_test.go:1249:13: this value of err is never used (SA4006)
pkg/volume/csi/csi_test.go:305:5: the goroutine calls T.Fatalf, which must be called in the same goroutine as the test (SA2002)
pkg/volume/flexvolume/probe_test.go:67:10: this value of err is never used (SA4006)
pkg/volume/iscsi/iscsi_test.go:95:2: field attachCalled is unused (U1000)
pkg/volume/iscsi/iscsi_test.go:96:2: field detachCalled is unused (U1000)
pkg/volume/iscsi/iscsi_test.go:501:24: this value of err is never used (SA4006)
pkg/volume/iscsi/iscsi_util_test.go:159:2: this value of exist is never used (SA4006)
pkg/volume/local/local.go:351:57: argument devicePath is overwritten before first use (SA4009)
pkg/volume/plugins_test.go:119:2: this value of plug is never used (SA4006)
pkg/volume/plugins_test.go:125:2: this value of plug is never used (SA4006)
pkg/volume/quobyte/quobyte.go:474:23: this result of append is never used, except maybe in other appends (SA4010)
pkg/volume/quobyte/quobyte.go:477:23: this result of append is never used, except maybe in other appends (SA4010)
pkg/volume/quobyte/quobyte.go:480:23: this result of append is never used, except maybe in other appends (SA4010)
pkg/volume/rbd/rbd.go:886:2: field adminSecret is unused (U1000)
pkg/volume/rbd/rbd.go:887:2: field adminID is unused (U1000)
pkg/volume/rbd/rbd.go:888:2: field imageFormat is unused (U1000)
pkg/volume/rbd/rbd.go:889:2: field imageFeatures is unused (U1000)
pkg/volume/storageos/storageos.go:302:2: field secretName is unused (U1000)
pkg/volume/storageos/storageos_util_test.go:43:2: field apiAddr is unused (U1000)
pkg/volume/storageos/storageos_util_test.go:44:2: field apiUser is unused (U1000)
pkg/volume/storageos/storageos_util_test.go:45:2: field apiPass is unused (U1000)
pkg/volume/storageos/storageos_util_test.go:46:2: field apiVersion is unused (U1000)
pkg/volume/util/atomic_writer_test.go:756:49: argument err is overwritten before first use (SA4009)
pkg/volume/util/fsquota/common/quota_linux_common.go:37:2: const acct is unused (U1000)
pkg/volume/util/fsquota/common/quota_linux_common.go:38:2: const enforcing is unused (U1000)
pkg/volume/util/fsquota/project.go:168:31: identical expressions on the left and right side of the '==' operator (SA4000)
pkg/volume/util/fsquota/quota_linux.go:306:50: argument poduid is overwritten before first use (SA4009)
pkg/volume/util/fsquota/quota_linux_test.go:558:16: this value of err is never used (SA4006)
pkg/volume/util/subpath/subpath_linux.go:232:81: argument err is overwritten before first use (SA4009)
pkg/volume/util/subpath/subpath_linux_test.go:579:73: argument err is overwritten before first use (SA4009)
Before https://github.com/kubernetes/kubernetes/pull/83084, `kubectl
apply --prune` can prune resources in all namespaces specified in
config files. After that PR got merged, only a single namespace is
considered for pruning. It is OK if namespace is explicitly specified
by --namespace option, but what the PR does is use the default
namespace (or from kubeconfig) if not overridden by command line flag.
That breaks the existing usage of `kubectl apply --prune` without
--namespace option. If --namespace is not used, there is no error,
and no one notices this issue unless they actually check that pruning
happens. This issue also prevents resources in multiple namespaces in
config file from being pruned.
kubectl 1.16 does not have this bug. Let's see the difference between
kubectl 1.16 and kubectl 1.17. Suppose the following config file:
```yaml
apiVersion: v1
kind: ConfigMap
metadata:
creationTimestamp: null
name: foo
namespace: a
labels:
pl: foo
data:
foo: bar
---
apiVersion: v1
kind: ConfigMap
metadata:
creationTimestamp: null
name: bar
namespace: a
labels:
pl: foo
data:
foo: bar
```
Apply it with `kubectl apply -f file`. Then comment out ConfigMap foo
in this file. kubectl 1.16 prunes ConfigMap foo with the following
command:
$ kubectl-1.16 apply -f file -l pl=foo --prune
configmap/bar configured
configmap/foo pruned
But kubectl 1.17 does not prune ConfigMap foo with the same command:
$ kubectl-1.17 apply -f file -l pl=foo --prune
configmap/bar configured
With this patch, kubectl once again can prune the resource as before.
Allow overriding the dry-run temporary directory with
an env. variable (KUBEADM_INIT_DRYRUN_DIR).
Use the same variable in test/cmd/init_test.go.
This allows running integration tests as non-root.
Make getKubeadmPath() fetch the KUBEADM_PATH env. variable.
Panic if it's missing. Don't handle the "--kubeadm-path"
flag. Remove the same flag from the BUILD bazel test rule.
Don't handle "--kubeadm-cmd-skip" usage of this flag is missing
from the code base.
Remove usage of "kubeadmCmdSkip" as the flag "--kubeadm-cmd-skip"
is never passed.
/cluster/kubeadm.sh is used to find the kubeadm binary.
This file is legacy and is removed.
Remove /test/cmd/kubeadm.sh. This file contains a function that is used
to build kubeadm and invoke "make test". Move the function contents
to hack/make-rules/test-cmd.cmd.
Stop sourcing /test/cmd/kubeadm.sh in /test/cmd/legacy-script.sh.
Also remove the --kubeadm-path invocation as this can be handled
with an env. variable directly.
Version v1.1.0 added support for validating cgroups v2.
v1.1.1 includes a fix for a broken cross-build on !linux.
v1.1.2 reverted a breaking API change with the introduction of CgroupsSpec.
Watches against etcd in the API server can hang forever if the etcd
cluster loses quorum, e.g. the majority of nodes crashes. This fix
improves responsiveness (detection and reaction time) of API server
watches against etcd in some rare (but still possible) edge cases so
that watches are terminated with `"etcdserver: no leader"
(ErrNoLeader)`.
Implementation behavior described by jingyih:
```
The etcd server waits until it cannot find a leader for 3 election
timeouts to cancel existing streams. 3 is currently a hard coded
constant. The election timeout defaults to 1000ms.
If the cluster is healthy, when the leader is stopped, the leadership
transfer should be smooth. (leader transfers its leadership before
stopping). If leader is hard killed, other servers will take an election
timeout to realize leader lost and start campaign.
```
For further details, discussion and validation see
https://github.com/kubernetes/kubernetes/issues/89488#issuecomment-606491110
and https://github.com/etcd-io/etcd/issues/8980.
Closes: https://github.com/kubernetes/kubernetes/issues/89488
Signed-off-by: Michael Gasch <mgasch@vmware.com>
