CRI runtimes do not supply cpu nano core usage as it is not part of CRI
stats. However, there are upstream components that still rely on such
stats to function. The previous fix was faulty because the multiple
callers could compete and update the stats, causing
inconsistent/incoherent metrics. This change, instead, creates a
separate call for updating the usage, and rely on eviction manager,
which runs periodically, to trigger the updates. The caveat is that if
eviction manager is completley turned off, no one would compute the
usage.
For the next release, we include both sets of labels for pods and
containers: "container_name" and "container", "pod_name" and "pod".
In future releases, the "*_name" metrics will be deprecated.
- Move from the old github.com/golang/glog to k8s.io/klog
- klog as explicit InitFlags() so we add them as necessary
- we update the other repositories that we vendor that made a similar
change from glog to klog
* github.com/kubernetes/repo-infra
* k8s.io/gengo/
* k8s.io/kube-openapi/
* github.com/google/cadvisor
- Entirely remove all references to glog
- Fix some tests by explicit InitFlags in their init() methods
Change-Id: I92db545ff36fcec83afe98f550c9e630098b3135
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Add kubelet stats for windows system container "pods"
**What this PR does / why we need it**:
This PR adds kubelet stats for windows system container "pods". Without this, kubelet will always logs error:
```
kubelet.err.log:4832:E0711 22:12:49.241358 2872 helpers.go:735] eviction manager: failed to construct signal: "allocatableMemory.available" error: system container "pods" not found
```
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#66087
**Special notes for your reviewer**:
/sig windows
/sig node
**Release note**:
```release-note
Add kubelet stats for windows system container "pods"
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Other components support set log level dynamically
**What this PR does / why we need it**:
#63777 introduced a way to set glog.logging.verbosity dynamically.
We should enable this for all other components, which is specially useful in debugging.
**Release note**:
```release-note
Expose `/debug/flags/v` to allow kubelet dynamically set glog logging level. If want to change glog level to 3, you only have to send a PUT request like `curl -X PUT http://127.0.0.1:8080/debug/flags/v -d "3"`.
```
Automatic merge from submit-queue (batch tested with PRs 65561, 67109, 67450, 67456, 67402). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
error text refers to wrong stream type
**What this PR does / why we need it**:
clarify error text
**Special notes for your reviewer**:
I think this was a copy and paste error.
**Release note**:
```release-note
NONE
```
This allows kubelets to stop the necessary work when the context has
been canceled (e.g., connection closed), and not leaking a goroutine
and inotify watcher waiting indefinitely.
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Update bazelbuild/rules_go, kubernetes/repo-infra, and gazelle dependencies
**What this PR does / why we need it**: updates our bazelbuild/rules_go dependency in order to bump everything to go1.9.4. I'm separating this effort into two separate PRs, since updating rules_go requires a large cleanup, removing an attribute from most build rules.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 57136, 59920). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Updated PID pressure node condition.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
part of #54313
**Release note**:
```release-note
Updated PID pressure node condition
```
