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CRI: Add kuberuntime container logs
Based on https://github.com/kubernetes/kubernetes/pull/34858.
The first 2 commits are from #34858. And the last 2 commits are new.
This PR added kuberuntime container logs support and add unit test for it.
I've tested all the functions manually, and I'll send another PR to write a node e2e test for container log.
**_Notice: current implementation doesn't support log rotation**_, which means that:
- It will not retrieve logs in rotated log file.
- If log rotation happens when following the log:
- If the rotation is using create mode, we'll still follow the old file.
- If the rotation is using copytruncate, we'll be reading at the original position and get nothing.
To solve these issues, kubelet needs to rotate the log itself, or at least kubelet should be able to control the the behavior of log rotator. These are doable but out of the scope of 1.5 and will be addressed in future release.
@yujuhong @feiskyer @yifan-gu
/cc @kubernetes/sig-node
Automatic merge from submit-queue
Node controller to not force delete pods
Fixes https://github.com/kubernetes/kubernetes/issues/35145
- [x] e2e tests to test Petset, RC, Job.
- [x] Remove and cover other locations where we force-delete pods within the NodeController.
**Release note**:
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``` release-note
Node controller no longer force-deletes pods from the api-server.
* For StatefulSet (previously PetSet), this change means creation of replacement pods is blocked until old pods are definitely not running (indicated either by the kubelet returning from partitioned state, or deletion of the Node object, or deletion of the instance in the cloud provider, or force deletion of the pod from the api-server). This has the desirable outcome of "fencing" to prevent "split brain" scenarios.
* For all other existing controllers except StatefulSet , this has no effect on the ability of the controller to replace pods because the controllers do not reuse pod names (they use generate-name).
* User-written controllers that reuse names of pod objects should evaluate this change.
```
Status is exposed as v1 in the current schema (so all groups are
returning v1.Status). However, if you give a codec only "mygroup"
"myversion", it will fail to convert Status to v1. For now, unversioned
types should be allowed to be projected into all group versions, and
when we add the server group we'll rip out the unversioned concept
entirely.
restclient must be able to deal with multiple types of servers. Alter
the behavior of restclient.Result#Raw() to not process the body on
error, but instead to return the generic error (which still matches the
error checking cases in api/error like IsBadRequest). If the caller uses
.Error(), .Into(), or .Get(), try decoding the body as a Status.
For older servers, continue to default apiVersion "v1" when calling
restclient.Result#Error(). This was only for 1.1 servers and the
extensions group, which we have since fixed.
This removes a double decode of very large objects (like LIST).
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CRI: Rename container/sandbox states
The enum constants are not namespaced. The shorter, unspecifc names are likely
to cause naming conflicts in the future.
Also replace "SandBox" with "Sandbox" in the API for consistency.
/cc @kubernetes/sig-node
This check is too restrictive if building into multiple _output
targets, such as the way anago produces releases
When branching we build essentially 2 copies of the same thing
(GKE requirement) the second build will always fail because the
docker image is the same.
Automatic merge from submit-queue
Add FeatureGates field to KubeletConfiguration
This threads the `--feature-gates` flag through the `KubeletConfiguration` object and also allows setting feature gates via dynamic Kubelet configuration.
/cc @jlowdermilk
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e2e.go/kops: Bump timeout to 20m, fix KUBERNETES_PROVIDER
**What this PR does / why we need it**: I don't have a ton of proof, but I think https://k8s-testgrid.appspot.com/google-aws#kops-aws-updown builds 4045-4047 are just AWS and DNS slowness.
In addition, my original PR was meant to change `KUBERNETES_PROVIDER` based on `KUBERNETES_CONFORMANCE_PROVIDER`.
Automatic merge from submit-queue
kubeadm preflight checks: Warn user if connections to API or Discovery are going to be over proxy
**What this PR does / why we need it**: Continuing discussion from PR #35044, new version will provide warning if kubeadm run in environment where http connections would go over proxy.
Most of the time, it is not expected behaviour and leads to situations like in #34695
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#34695
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
kubeadm during initialization of master and slave nodes need to make
several API calls directly to the node where it is running or master.
In environments with http/https proxies, user might accidentally
have configuration where connections to API would go over proxy instead
of directly.
User can re-run kubeadm with corrected NO_PROXY variable. Example:
$ NO_PROXY=* kubeadm join ...
Along the way: Fix ginkgo-e2e.sh. This change got dropped in the
original PR, but it was meant to allow a conformance-style
kubectl-auth test and still have a legit cloud provider.
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Disruption e2e: wait for running pods in the table test, too
**What this PR does / why we need it**: Makes the `DisruptionController` tests less flaky.
**Which issue this PR fixes**: fixes#34032
The enum constants are not namespaced. The shorter, unspecifc names are likely
to cause naming conflicts in the future.
Also replace "SandBox" with "Sandbox" in the API.
This change add a container manager inside the dockershim to move docker daemon
and associated processes to a specified cgroup. The original kubelet container
manager will continue checking the name of the cgroup, so that kubelet know how
to report runtime stats.
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e2e: Fix GetReadySchedulableNodesOrDie for taints
**What this PR does / why we need it**:
This changes framework.GetReadySchedulableNodesOrDie and
framework.GetMasterAndWorkerNodesOrDie so that nodes that can't take a
generic fake pod due to a taint/toleration mismatch aren't returned.
This is a rehash of #35210, but pulls in the scheduler code.
**Which issue this PR fixes**: c.f. #35210
**Special notes for your reviewer**: I think it's gross that we keep having to manually compute this in e2es. Maybe we need a bug for that?
Automatic merge from submit-queue
Eviction manager evicts based on inode consumption
Fixes: #32526 Integrate Cadvisor per-container inode stats into the summary api. Make the eviction manager act based on inode consumption to evict pods using the most inodes.
This PR is pending on a cadvisor godeps update which will be included in PR #35136
Neutron's API ignores unknown paramaters. When listing pools etc, K8
attempts to filter on "LoadBalancerID", which is not a valid filter.
As such, it is ignored by Neutron, and a list of all pools is
returned. K8 then proceeds to update each of the pools.
Instead, we now double check the resources really belong to the LB
we're trying to update.
This changes framework.GetReadySchedulableNodesOrDie and
framework.GetMasterAndWorkerNodesOrDie so that nodes that can't take a
generic fake pod due to a taint/toleration mismatch aren't returned.
This is a rehash of #35210, but pulls in the scheduler code.
Automatic merge from submit-queue
Add tooling to generate listers
Add lister-gen tool to auto-generate listers. So far this PR only demonstrates replacing the manually-written `StoreToLimitRangeLister` with the generated `LimitRangeLister`, as it's a small and easy swap.
cc @deads2k @liggitt @sttts @nikhiljindal @lavalamp @smarterclayton @derekwaynecarr @kubernetes/sig-api-machinery @kubernetes/rh-cluster-infra
Automatic merge from submit-queue
Only set sysctls for infra containers
We did set the sysctls for each container in a pod. This opens up a way to set un-whitelisted sysctls during upgrade from v1.3:
- set annotation in v1.3 with an un-whitelisted sysctl. Set restartPolicy=Always
- upgrade cluster to v1.4
- kill container process
- un-whitelisted sysctl is set on restart of the killed container.
Run:
etcd &
kube-apiserver --etcd-servers=... ...
UPDATE_NODE_APISERVER go test ./test/integration/master
-test.run=TestUpdateNodeObjects -test.v -tags integration
Simulates the core update loops from nodes to the API server, allowing
baseline profiling for steady state of large clusters. May require
tweaking the http.Transport used by the client to support >N idle
connections to the master.
kubeadm during initialization of master and slave nodes need to make
several API calls directly to the node where it is running or master.
In environments with http/https proxies, user might accidentally
have configuration where connections to API would go over proxy instead
of directly.
User can re-run kubeadm with corrected NO_PROXY variable. Example:
$ NO_PROXY=* kubeadm join ...
Automatic merge from submit-queue
remove non-reuseable bits of MasterServer
Scrub `master.go` again. I think I'm pretty happy with this shape. I may promote `InstallAPIs` since we're likely to want it downstream.
