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added fluentd detect-exceptions plugin to fluentd-es-image for multiline logging
**What this PR does / why we need it**:
This PR adds proper multiline logging (java stacktraces for example) to fluentd-es docker image by adding the fluentd detect-exceptions plugin.
Plugin: https://github.com/GoogleCloudPlatform/fluent-plugin-detect-exceptions
Its also used in GCP and it also works outside of Kubernetes, so it should be safe to use it here too.
**Release note**:
```release-note
fluentd-es addon: multiline stacktraces are now grouped into one entry automatically
```
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Block volumes Support: iSCSI plugin update
**What this PR does / why we need it**:
Add interface changes to iSCSI volume plugin to enable block volumes support feature.
**Which issue this PR fixes**:
Based on this proposal (kubernetes/community#805 & kubernetes/community#1265) and this feature issue: kubernetes/features#351
**Special notes for your reviewer**:
This PR temporarily includes following changes except iSCSI plugin change for reviewing purpose.
These changes will be removed from the PR once they are merged.
- (#50457) API Change
- (#51494) Container runtime interface change, volumemanager changes, operationexecutor changes
There are another PRs related to this functionality.
(#50457) API Change
(#53385) VolumeMode PV-PVC Binding change
(#51494) Container runtime interface change, volumemanager changes, operationexecutor changes
(#55112) Block volume: Command line printer update
Plugins
(#51493) Block volumes Support: FC plugin update
(#54752) Block volumes Support: iSCSI plugin update
**Release note**:
```
NONE
```
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GCE: Use existing subnetwork of ILB forwarding rule
Fixes#57860
**Test Cases**:
Clusters using auto network with existence of a manual subnet in same region.
- [x] Upgrade 1.7 cluster with existing ILBs to latest. Confirm existing ILBs still are synced.
Version 1.7 does not attempt to fill in the subnetwork, so the forwarding rule was created with the correct subnetwork.
- [x] Upgrade 1.8 cluster with existing ILBs to latest. Confirm existing ILBs (using wrong subnet) still are synced.
- [x] Latest version creates ILBs using the correct subnet.
Clusters with manual subnets have always and will continue to use the subnet specified in gce.conf.
- [x] Upgrade 1.8 cluster with existing ILBs to latest. Confirm existing ILBs (using manual subnet) still are synced.
Clusters with legacy networks have always and will continue to use an empty subnet.
- [x] Upgrade 1.8 cluster with existing ILBs to latest. Confirm existing ILBs (using legacy network) still are synced.
**Release note**:
```release-note
GCE: Allows existing internal load balancers to continue using an outdated subnetwork
```
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Add a feature flag for sharing process namespace between containers in a pod
**What this PR does / why we need it**:
This adds a feature flag for the feature described in kubernetes/features#495.
**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 #
**Special notes for your reviewer**:
/assign @dchen1107
**Release note**:
```release-note
NONE
```
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Allow Ceph server some time to start
Ceph server needs to create our "foo" volume on startup. It keeps the image small, however it makes the server container start slow.
Add sleep before the server is usable. Without this PR, all pods that use Ceph fail to start for couple of seconds with cryptic "image foo not found" error and it clutters logs and pod logs and makes it harder to spot real errors.
```release-note
NONE
```
/sig storage
/sig testing
/assign @jeffvance @copejon
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ignore images in used by running containers when GC
**What this PR does / why we need it**:
Let kubelet not attempt to remove images being used by running containers.
**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#57006
**Special notes for your reviewer**:
@kubernetes/sig-node-pr-reviews
**Release note**:
```release-note
ignore images in used by running containers when GC
```
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remove deprecated photon controller kube-up
This kube-up hasn't been maintained for over a year and has been deprecated for > 6 months.
see #49213
```release-note
Remove deprecated and unmaintained photon-controller kube-up.sh.
```
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Mark kubelet PID namespace flag as deprecated
**What this PR does / why we need it**:
The `--docker-disable-shared-pid` flag will be removed once per-pod configurable process namespace sharing becomes available. Mark it deprecated to notify cluster admins of the upcoming change.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
WIP #41938
**Special notes for your reviewer**:
/assign @yujuhong
**Release note**:
```release-note
The kubelet flag to run docker containers with a process namespace that is shared between all containers in a pod is now deprecated and will be replaced by a new field in `v1.Pod` that configures this behavior.
```
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manually handle encoding and decoding in the scale client
@p0lyn0mial I think this resolves the problems you're seeing in https://github.com/kubernetes/kubernetes/pull/57843 by manually controlling the encode and decode in the client itself.
/assign @DirectXMan12
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fix rbd ConstructVolumeSpec bug
**What this PR does / why we need it**:
Fix rbd `ConstructVolumeSpec` bug as its global device mount path is not canonical. Full details are in #57744 .
**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#57744
**Release note**:
```release-note
NONE
```
/sig storage
/kind bug
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fixed some bad url
**What this PR does / why we need it**:
fixed some bad url
**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 #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Treat staging repos as authoritative source for all files
Add CONTRIBUTING.md files to remind people not to PR directly into the published repos.
/hold
I believe this requires removing these files from the published repos if any copies exist there
ref: kubernetes/kubernetes#57559
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Code generation for GCE compute interface
Use code generation to "write" most of the GCE cloud provider library. This enables the following:
- Consistent interfaces, including handling of the different API versions (GA, alpha, beta)
- Efficient implementation of cross cutting features such as metrics, logging, tracing etc. Adding such features has in the past been a tedious and error prone endeavor.
- High fidelity mocks for all of the compute API. What this means is that most of our controller logic can be tested as unit tests in a consistent way without creating individual mocks by hand.
```release-note
NONE
```
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fix typos in kubectl pkg
**What this PR does / why we need it**:
**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 #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Let mutating webhook defaults the object
...after applying the patch sent back by the webhook
This should be treated as a bug and cherrypicked to 1.9.
Fixes#57982
The `--docker-disable-shared-pid` flag will be removed once per-pod
configurable process namespace sharing becomes available. Mark it
deprecated to notify cluster admins.
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fix for local-up-cluster.sh bad cloud_config_arg
Fixes#58086
Adding fix for bad arg in local-up-cluster.sh where cloud_config_param was invalid
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Enable support for etcd3
**What this PR does / why we need it**: With this PR juju deployments of kubernetes can use both etcd2 and 3.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
**Special notes for your reviewer**: Lets not merge this immediately. Lets wait for next year.
**Release note**:
```NONE
```
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refactor getting uninitialized in kubectl get
**What this PR does / why we need it**:
remove leftover TODO to refactor getting uninitialized in kubectl get
**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 #
**Special notes for your reviewer**:
/assign @smarterclayton
**Release note**:
```release-note
None
```
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Added nodeAffinity in validation error msg.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes # N/A
**Release note**:
```release-note
NONE
```
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Increase test coverage in `pkg/controllers/podautoscaler/metrics`
**What this PR does / why we need it**:
Increase test coverage for `pkg/controllers/podautoscaler/metrics`. The biggest addition is unit tests for `pkg/controller/podautoscaler/metrics/utilization.go`.
**Release note**:
```release-note
NONE
```
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Make StatefulSet report an event when recreating failed pod
When StatefulSet finds any of its pods in phase Failed it will delete it and create it again. While doing so it will emit delete+create event which is really confusing for the user as he has no idea what's happening.
Fixes https://github.com/kubernetes/kubernetes/issues/58082
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fix populateDesiredStateOfWorld bug for attach/detach controller
**What this PR does / why we need it**:
The `attachDetachController.populateDesiredStateOfWorld` mehod will fetch all pods from the informer cache and add each pods to `DesiredStateOfWorld` by the [addPod method](da9a4d5da9/pkg/controller/volume/attachdetach/attach_detach_controller.go (L338)).
However, the element type of pod list returned by `podLister.List` is already `*v1.Pod`, so we needn't to take the address any more.
**Release note**:
```release-note
NONE
```
/sig storage
/kind bug
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Make code generators log to stderr by default
**What this PR does / why we need it**:
Most code generators inside `staging/` are CLI tools. It makes sense for CLI tools (in general) to log to stdout/err, especially knowing that [`glog` has a 30sec flush interval](a227c1ea2c/pkg/kubectl/util/logs/logs.go (L49)), which leads to logs being lost and makes troubleshooting tedious for people not aware of that quirk.
Fixes#53791
```release-note
NONE
```
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check function return err
**What this PR does / why we need it**:
check function return err
**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 #
**Special notes for your reviewer**:
**Release note**:
```NONE
```
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make controller port exposure optional
Makes it possible to disable the http server part of controllers if a user wishes.
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cmd/kubectl: fix broken error formatting for run
This patch adds missing value to a format string (%s) in --restart flag
validation for "kubectl run".
"kubectl run --restart=foo" was giving error:
error: invalid restart policy: %!s(MISSING)
Now it says:
error: invalid restart policy: foo
/release-note-none
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Updated Flexvolume setup mechanisms for COS instance image.
- If REMOUNT_VOLUME_PLUGIN_DIR is set to true, VOLUME_PLUGIN_DIR is remounted with `exec` option during cluster startup. This allows any writable location to be used as the plugin directory.
- New HostPath added to controller-manager deployment to enable access to volume plugin directory.
- Improved how the default directory is passed to master and node setup.
**What this PR does / why we need it**: Part of the fix for #57353
/release-note-none
/sig storage
/assign @saad-ali @roberthbailey
/cc @chakri-nelluri @wongma7
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fix device name change issue for azure disk: add remount logic
**What this PR does / why we need it**:
fix device name change issue for azure disk: add remount logic
Accoding to [Troubleshoot Linux VM device name change](https://docs.microsoft.com/en-us/azure/virtual-machines/linux/troubleshoot-device-names-problems), there is possibility of device name change, so when kubelet is restarted, we need to check whether the following two paths are still valid:
1. `/var/lib/kubelet/plugins/kubernetes.io/azure-disk/mounts/m358246426`: in MountDevice func
2. `/var/lib/kubelet/pods/950f2eb8-d4e7-11e7-bc95-000d3a041274/volumes/kubernetes.io~azure-disk/pvc-67e4e319-d4e7-11e7-bc95-000d3a041274`: in SetUpAt func
**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#57952
**Special notes for your reviewer**:
this is a corresponding fix of https://github.com/kubernetes/kubernetes/pull/57549, #57549 uses '/dev/disk/by-id', and this PR would check whether the mountPath is valid when kubelet restart(e.g. after VM reboot since device name may change), if not valid, remount, remember '/dev/disk/by-id' will be always valid.
**Release note**:
```
fix device name change issue for azure disk: add remount logic
```
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Explicit kubelet flags
The Kubelet was using the global flag set.
Libraries also often use the global flag set.
There are flags in the Kubelet's usage statement for which the Kubelet does not control registration.
This is bad, we must have full control of our command-line API.
This PR puts a stop to it.
I worked through the Kubelet's usage printout and tracked down the flags.
In the below list, flags with checkboxes are one of:
- explicitly **registered** in this PR
- thought about and outright **rejected**
- thought about and **registered-deprecated** for legacy reasons
For the others we need to figure out whether they should be **registered** or **rejected** or **registered-deprecated**.
### cadvisor:
grep commands, for reference:
```
# flag definitions in cadvisor
git grep -E "\"application_metrics_count_limit\"|\"boot_id_file\"|\"container_hints\"|\"containerd\"|\"docker\"|\"docker_env_metadata_whitelist\"|\"docker_only\"|\"docker_root\"|\"docker-tls\"|\"docker-tls-ca\"|\"docker-tls-cert\"|\"docker-tls-key\"|\"enable_load_reader\"|\"event_storage_age_limit\"|\"event_storage_event_limit\"|\"global_housekeeping_interval\"|\"housekeeping_interval\"|\"log_cadvisor_usage\"|\"machine_id_file\"|\"storage_driver_buffer_duration\"|\"storage_driver_db\"|\"storage_driver_host\"|\"storage_driver_password\"|\"storage_driver_secure\"|\"storage_driver_table\"|\"storage_driver_user\"" -- vendor/github.com/google/cadvisor
# flag invocations
git grep -E "\--application_metrics_count_limit|--boot_id_file|--container_hints|--containerd|--docker|--docker_env_metadata_whitelist|--docker_only|--docker_root|--docker_tls|--docker_tls_ca|--docker_tls_cert|--docker_tls_key|--enable_load_reader|--event_storage_age_limit|--event_storage_event_limit|--global_housekeeping_interval|--housekeeping_interval|--log_cadvisor_usage|--machine_id_file|--storage_driver_buffer_duration|--storage_driver_db|--storage_driver_host|--storage_driver_password|--storage_driver_secure|--storage_driver_table|--storage_driver_user" -- ':(exclude)pkg/generated/bindata.go' ':(exclude)Godeps' ':(exclude)CHANGELOG*' ':(exclude)vendor'
# normalized flag invocations
git grep -E "\--application-metrics-count-limit|--boot-id-file|--container-hints|--containerd|--docker|--docker-env-metadata-whitelist|--docker-only|--docker-root|--docker-tls|--docker-tls-ca|--docker-tls-cert|--docker-tls-key|--enable-load-reader|--event-storage-age-limit|--event-storage-event-limit|--global-housekeeping-interval|--housekeeping-interval|--log-cadvisor-usage|--machine-id-file|--storage-driver-buffer-duration|--storage-driver-db|--storage-driver-host|--storage-driver-password|--storage-driver-secure|--storage-driver-table|--storage-driver-user" -- ':(exclude)pkg/generated/bindata.go' ':(exclude)Godeps' ':(exclude)CHANGELOG*' ':(exclude)vendor'
# flag names
git grep -E "application_metrics_count_limit|boot_id_file|container_hints|containerd|docker|docker_env_metadata_whitelist|docker_only|docker_root|docker_tls|docker_tls_ca|docker_tls_cert|docker_tls_key|enable_load_reader|event_storage_age_limit|event_storage_event_limit|global_housekeeping_interval|housekeeping_interval|log_cadvisor_usage|machine_id_file|storage_driver_buffer_duration|storage_driver_db|storage_driver_host|storage_driver_password|storage_driver_secure|storage_driver_table|storage_driver_user" ':(exclude)pkg/generated/bindata.go' ':(exclude)Godeps' ':(exclude)CHANGELOG*' ':(exclude)vendor'
# normalized flag names
git grep -E "application-metrics-count-limit|boot-id-file|container-hints|containerd|docker|docker-env-metadata-whitelist|docker-only|docker-root|docker-tls|docker-tls-ca|docker-tls-cert|docker-tls-key|enable-load-reader|event-storage-age-limit|event-storage-event-limit|global-housekeeping-interval|housekeeping-interval|log-cadvisor-usage|machine-id-file|storage-driver-buffer-duration|storage-driver-db|storage-driver-host|storage-driver-password|storage-driver-secure|storage-driver-table|storage-driver-user" ':(exclude)pkg/generated/bindata.go' ':(exclude)Godeps' ':(exclude)CHANGELOG*' ':(exclude)vendor'
# normalized and underscore names combined
git grep -E "application_metrics_count_limit|boot_id_file|container_hints|containerd|docker|docker_env_metadata_whitelist|docker_only|docker_root|docker_tls|docker_tls_ca|docker_tls_cert|docker_tls_key|enable_load_reader|event_storage_age_limit|event_storage_event_limit|global_housekeeping_interval|housekeeping_interval|log_cadvisor_usage|machine_id_file|storage_driver_buffer_duration|storage_driver_db|storage_driver_host|storage_driver_password|storage_driver_secure|storage_driver_table|storage_driver_user|application-metrics-count-limit|boot-id-file|container-hints|containerd|docker-env-metadata-whitelist|docker-only|docker-root|docker-tls|docker-tls-ca|docker-tls-cert|docker-tls-key|enable-load-reader|event-storage-age-limit|event-storage-event-limit|global-housekeeping-interval|housekeeping-interval|log-cadvisor-usage|machine-id-file|storage-driver-buffer-duration|storage-driver-db|storage-driver-host|storage-driver-password|storage-driver-secure|storage-driver-table|storage-driver-user" ':(exclude)pkg/generated/bindata.go' ':(exclude)Godeps' ':(exclude)CHANGELOG*' ':(exclude)vendor'
```
- [x] --docker-root (**registered** - this is used in `cluster/saltbase/salt/kubelet/default`)
- [x] --housekeeping-interval (**registered** - e2e node tests rely on this (`test/e2e_node/resource_collector.go`))
- [x] --application-metrics-count-limit (**registered-deprecated** - temporarily register for legacy)
- [x] --boot-id-file (**registered-deprecated** - temporarily register for legacy)
- [x] --container-hints (**registered-deprecated** - temporarily register for legacy)
- [x] --containerd (**registered-deprecated** - temporarily register for legacy)
- [x] --docker (**registered-deprecated** - temporarily register for legacy)
- [x] --docker-env-metadata-whitelist (**registered-deprecated** - temporarily register for legacy)
- [x] --docker-only (**registered-deprecated** - temporarily register for legacy)
- [x] --docker-tls (**registered-deprecated** - temporarily register for legacy)
- [x] --docker-tls-ca (**registered-deprecated** - temporarily register for legacy)
- [x] --docker-tls-cert (**registered-deprecated** - temporarily register for legacy)
- [x] --docker-tls-key (**registered-deprecated** - temporarily register for legacy)
- [x] --enable-load-reader (**registered-deprecated** - temporarily register for legacy)
- [x] --event-storage-age-limit (**registered-deprecated** - the Kubelet overrides the default via the global flagset (`pkg/kubelet/cadvisor/cadvisor_linux.go`), but nothing else in core repo provides)
- [x] --event-storage-event-limit (**registered-deprecated** - the Kubelet overrides the default via the global flagset (`pkg/kubelet/cadvisor/cadvisor_linux.go`), but nothing else in core repo provides)
- [x] --global-housekeeping-interval (**registered-deprecated** - temporarily register for legacy)
- [x] --log-cadvisor-usage (**registered-deprecated** - temporarily register for legacy)
- [x] --machine-id-file (**registered-deprecated** - temporarily register for legacy)
- [x] --storage-driver-user (**registered-deprecated** - temporarily register for legacy)
- [x] --storage-driver-password (**registered-deprecated** - temporarily register for legacy)
- [x] --storage-driver-host (**registered-deprecated** - temporarily register for legacy)
- [x] --storage-driver-db (**registered-deprecated** - temporarily register for legacy)
- [x] --storage-driver-table (**registered-deprecated** - temporarily register for legacy)
- [x] --storage-driver-secure (**registered-deprecated** - temporarily register for legacy)
- [x] --storage-driver-buffer-duration (**registered-deprecated** - temporarily register for legacy)
### pkg/apiserver/util/logs:
- [x] --log-flush-frequency (**registered** - like the glog flags, this is probably useful)
### pkg/credentialprovider/azure/azure_credentials.go:
- [x] --azure-container-registry-config (**registered** - This isn't quite as straightforward as --google-json-key, because the file it points to isn't static. For now we will just register, and we will deprecate it when there is an alternative. See below comments.)
### pkg/credentialprovider/gcp/jwt.go:
- [x] --google-json-key (**registered-deprecated** - This is really old legacy stuff to allow kubelets to authenticate with gcr (see: d5e0054eb0). See @liggit's below comment for what should be used instead.)
### pkg/cloudprovider/providers/gce/gce_loadbalancer.go:
- [x] --cloud-provider-gce-lb-src-cidrs (**rejected** - Kubelet doesn't need to know about the cidrs that were opened in the firewall for the load balancer)
### glog:
I registered all of these, since this logging library is used pretty much everywhere in the Kubelet, and all of its toggles are probably useful.
- [x] --logtostderr (**registered**)
- [x] --alsologtostderr (**registered**)
- [x] -v, --v (**registered**)
- [x] --stderrthreshold (**registered**)
- [x] --vmodule (**registered**)
- [x] --log-backtrace-at (**registered**)
- [x] --log-dir (**registered**)
### verflag:
This is how you get the Kubelet's version, absolutely necessary to register this.
- [x] --version (**registered**)
```release-note
The Kubelet now explicitly registers all of its command-line flags with an internal flagset, which prevents flags from third party libraries from unintentionally leaking into the Kubelet's command-line API. Many unintentionally leaked flags are now marked deprecated, so that users have a chance to migrate away from them before they are removed. One previously leaked flag, --cloud-provider-gce-lb-src-cidrs, was entirely removed from the Kubelet's command-line API, because it is irrelevant to Kubelet operation.
```
Thanks to @liggitt for being surprised that we didn't already do this.
Thanks to @dashpole for realizing cadvisor flags were leaked after seeing #55863.
Thanks to @tallclair who recognized this problem a long time ago in #19432.
Automatic merge from submit-queue (batch tested with PRs 57733, 57613, 57953). 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>.
[eviction manager]fix type error
**What this PR does / why we need it**:
It should not wrong hint messages when create memory threshold notifier failed
**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 #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 57993, 58028). 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>.
Add volumemetrics for glusterfs plugin.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
**What this PR does / why we need it**:
**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 #
**Special notes for your reviewer**:
**Release note**:
```release-note
```
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>.
dockershim: bump the minimum supported docker version to 1.11
Drop the 1.10 compatibilty code.
**Release note**:
```release-note
NONE
```
