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Kubelet: add SyncPod for new runtime API
This PR adds implements of `SyncPod` for new runtime API. Note that init containers is not included, it will in another following PR.
**DO-NOT-MERGE**. Based on #31322 and #31395, only last commit is for review.
CC @yujuhong @Random-Liu and @kubernetes/sig-node @kubernetes/sig-rktnetes
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Specific error message on failed rolling update issued by older kubectl against 1.4 master
Fix#32706
`kubernetes-e2e-gke-1.4-1.3-kubectl-skew` (1.3 kubectl and 1.4 master) test suite failed with:
```
k8s.io] Kubectl client [k8s.io] Kubectl rolling-update should support rolling-update to same image [Conformance]
...
Error from server: object is being deleted: replicationcontrollers "e2e-test-nginx-rc" already exists error: exit status 1 not to have occurred
```
It's because the old RC had an orphanFinalizer, so it is not deleted from the key-value store immediately. In turn, the creation of the new RC of the same name failed.
In this failure, the RC and pods are updated, it's just that the RC is of different name, i.e., original name + a hash generated based on podTemplate. The error is confusing to user, but not that bad. So this PR just prints a warning message to instruct users how to work around.
1.4 kubectl rolling-update uses different logic so it's working.
@lavalamp @gmarek @janetkuo @pwittrock
cc @liggitt for the ctx changes.
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Handle Stream() errors consistently in restclient
We should be following the same rules for Stream() as the normal body
request flow.
Also add slightly more output on a server error - in the future we may
want to clean this up but it's potentially hiding bad responses.
Related to #32009 but isn't the fix (so far)
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Check kubeClient nil in Kubelet and bugfix
1. check kubeClient nil first before using as it maybe nil
2. configMaps and secrets map do not be used properly and should use it as cache
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Change the default volume type of GlusterFS provisioner.
At present provisioner creates 'Distribute' Volume and this patch change the default
volume type 'Distribute Replica:(3)' volume.
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Adding a README for federation API ref docs
The API ref docs were added in https://github.com/kubernetes/kubernetes/pull/31759
README makes it easy to link to all other API-ref docs.
This is similar to the existing docs/api-reference/README.md for kubernetes.
cc @kubernetes/sig-cluster-federation @caesarxuchao
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Centralize install code
Trying to figure out a way to do this that makes the changes as painless to roll out as possible. This is going to be a multi-step process...
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use discovery restmapper for kubectl
Updates the `kubectl` factory to use a discovery rest mapper for locating resources. This allows generic gets.
@kargakis @sttts @fabianofranz I'll let you guys fight over it. :)
At present, provisioner creates Distribute Volume and this patch
change the default volume type to Distribute-Replica(3) volume.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
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restrict discoverable versions to those that have resources
Prevents versions with no resources from appearing in discovery.
@soltysh ptal. I think you have some issues for this, mind wiring them up?
```
kubectl api-versions
apps/v1alpha1
authentication.k8s.io/v1beta1
authorization.k8s.io/v1beta1
autoscaling/v1
batch/v1
certificates.k8s.io/v1alpha1
extensions/v1beta1
policy/v1alpha1
rbac.authorization.k8s.io/v1alpha1
storage.k8s.io/v1beta1
v1
```
Fixes #29998.
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Exit scheduler retry loop correctly
The error was being eaten and shadowed, which means we would never exit
this loop. This might lead to a goroutine in the scheduler being used
forever without exiting at maximum backoff.
Switched to use the real client to make later refactors easier.
@wojtek-t this may lead to scheduler informer exhaustion - not that familiar with retries
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Kubelet: add garbage collection for new runtime API
This PR adds garbage collection for new runtime API.
Note that this PR also adds `CreatedAt` and `PodSandboxId` to `ListContainers()` result.
CC @yujuhong @Random-Liu @kubernetes/sig-node @kubernetes/sig-rktnetes
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Added --log-facility flag to enhance dnsmasq logging
Fix#31010.
Dnsmasq in kube-dns pod is logging in default setting, which is somehow hard to locate. Add --log-facility=- flag to redirect logs to std.
@girishkalele
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Set --alsologtostderr=true in integration test
Without the flag, no glog output are stored in the test results. The logs are useful for debugging flaky tests like https://github.com/kubernetes/kubernetes/issues/30228.
The change also reveals a lot of messages like `W0912 14:19:32.306719 25386 cacher.go:468] Terminating all watchers from cacher *api.LimitRange`, which doesn't seem right.
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Fix audit_test regex for iso8601 timestamps
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**What this PR does / why we need it**: The audit_test unit test fails as some iso8601 timestamps are of the form 2016-09-13T10:32:50.823081217Z and the current regex doesn't allow T's or Z's.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:NONE
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```release-note
```
Signed-off-by: Johnny Bieren <jbieren@redhat.com>
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Add glusterfs-client in hyperkube image.
When we run kubernete in a docker container, the glusterfs volume doesn't work.
This PR add glusterfs-client package in hyperkube image to fix the bug.
