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Index PVs by StorageClass in assume cache
**What this PR does / why we need it**:
Performance optimization for delayed binding in the scheduler to only search for PVs with a matching StorageClass name. This means that if you prebind the PV to a PVC, the PV must have a matching StorageClass name. This behavior is different from when you prebind with immediate binding, which doesn't care about StorageClass.
**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#56102
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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csi: Remove stale volume path
**What this PR does / why we need it**:
The CSI mounter creates the following paths during SetUp():
* .../pods/\<podID\>/volumes/kubernetes.io~csi/\<specVolId\>/mount/
* .../pods/\<podID\>/volumes/kubernetes.io~csi/\<specVolId\>/volume_data.json
During TearDown(), it does not remove the `.../kubernetes.io~csi/<specVolId>/`
directory, leaving behind orphan volumes: method cleanupOrphanedPodDirs()
complains with 'Orphaned pod found, but volume paths are still present
on disk'.
Fix that by removing the above directory in removeMountDir().
**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**:
**Release note**:
```release-note
NONE
```
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Add jsafrane as AWS approver.
**What this PR does / why we need it**:
I contrinbuted several PRs in AWS storage and I'm willing to share review/approval duty.
**Release note**:
```release-note
NONE
```
/assign @justinsb
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Add AWS cloud provider option for IAM role
**What this PR does / why we need it**:
Adds the option to provide an IAM role ARN in the AWS cloud provider config file that should be assumed when communicating with the AWS APIs.
For example, this allows running Controller Manager in a account separate from the worker nodes, but still allows all resources created to interact with the workers. ELBs created would be in the same account as the worker nodes for instance.
**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#59526
**Special notes for your reviewer**:
None
**Release note**:
```release-note
Add AWS cloud provider option to use an assumed IAM role
```
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kubectl port-forward should resolve service port to target port
**What this PR does / why we need it**:
Continues on the work in #59705, this PR adds additional support for looking up targetPort for a service, as well as enable using svc/name to select a pod.
**Which issue(s) this PR fixes**:
Fixes#15180Fixes#59733
**Special notes for your reviewer**:
I decided to create pkg/kubectl/util/service_port.go to contain two functions that might be re-usable.
**Release note**:
```release-note
`kubectl port-forward` now supports specifying a service to port forward to: `kubectl port-forward svc/myservice 8443:443`
```
Currently the AWS cloud provider uses the EC2 instance role when
interacting with AWS APIs. This change gives the option to provide and IAM
role that the cloud provider will assume before calling the APIs. All
resources created by the role will be owned by that account instead of
the account where the EC2 instance is running.
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Fix pod scheduled.
Fix `PodScheduled` condition.
The test `[k8s.io] EquivalenceCache [Serial] validates pod affinity works properly when new replica pod is scheduled` for cri-containerd is flaky.
The reason is that it assume all existing pods should have `PodScheduled` condition, but it is not the case:
```
Feb 15 15:31:01.359: INFO: with-label-390d246e-1265-11e8-beb8-0a580a3c7b55 bootstrap-e2e-minion-group-l6qw Running [{Initialized True 0001-01-01 00:00:00 +0000 UTC 2018-02-15 15:30:59 +0000 UTC } {Ready True 0001-01-01 00:00:00 +0000 UTC 2018-02-15 15:31:00 +0000 UTC } {PodScheduled True 0001-01-01 00:00:00 +0000 UTC 2018-02-15 15:30:59 +0000 UTC }]
Feb 15 15:31:01.359: INFO: calico-node-7mzxc bootstrap-e2e-minion-group-hztx Running [{Initialized True 0001-01-01 00:00:00 +0000 UTC 2018-02-15 14:17:05 +0000 UTC } {Ready True 0001-01-01 00:00:00 +0000 UTC 2018-02-15 14:17:59 +0000 UTC }]
Feb 15 15:31:01.359: INFO: calico-node-kvrsx bootstrap-e2e-minion-group-l6qw Running [{Initialized True 0001-01-01 00:00:00 +0000 UTC 2018-02-15 15:24:54 +0000 UTC } {Ready True 0001-01-01 00:00:00 +0000 UTC 2018-02-15 15:25:20 +0000 UTC }]
Feb 15 15:31:01.359: INFO: calico-node-llwjh
```
I'm not sure why this doesn't happen to docker. One theory is that we don't prepull image in cri-containerd, and we do start pod a bit faster for cri-containerd, and that exposes the race condition.
/cc @kubernetes/sig-node-bugs
Signed-off-by: Lantao Liu <lantaol@google.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
none
```
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Rework volume manager log levels
- all normal logs to go to level 4
- too frequent / duplicate logs go to level 5 (e.g. when something else logged similar message not too far away).
I checked that there is no excessive spam in the log - reconciler runs every 100ms, but it does not log anything if there is nothing to do.
**What this PR does / why we need it**:
This will help us debug flakes. E2e tests do not log levels 10-12 used in volume manager
**Release note**:
```release-note
NONE
```
/sig storage
/sig node
cc: @jingxu97 @sjenning
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Fix DownwardAPI refresh race.
WaitForAttachAndMount should mark only pod in DesiredStateOfWorldPopulator (DSWP) and DSWP should mark the volume to be remounted only when the new pod has been processed.
Otherwise DSWP and reconciler race who gets the new pod first. If it's reconciler, then DownwardAPI and Projected volumes of the pod are not refreshed with new content and they are updated after the next periodic sync (60-90 seconds).
Fixes#59813
/assign @jingxu97 @saad-ali
/sig storage
/sig node
```release-note
None
```
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Fix kubelet PVC stale metrics
**What this PR does / why we need it**:
Volumes on each node changes, we should not only add PVC metrics into
gauge vector. It's better use a collector to collector metrics from internal
stats.
Currently, if a PV (bound to a PVC `testpv`) is attached and used by node A, then migrated to node B or just deleted from node A later. `testpvc` metrics will not disappear from kubelet on node A. After a long running time, `kubelet` process will keep a lot of stale volume metrics in memory.
For these dynamic metrics, it's better to use a collector to collect metrics from a data source (`StatsProvider` here), like [kube-state-metrics](https://github.com/kubernetes/kube-state-metrics) scraping metrics from kube-apiserver.
**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 https://github.com/kubernetes/kubernetes/issues/57686
**Special notes for your reviewer**:
**Release note**:
```release-note
Fix kubelet PVC stale metrics
```
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Azure - ARM Read/Write rate limiting
**What this PR does / why we need it**:
Azure cloud provider currently runs with:
1. Single ARM rate limiter for both `read [put/post/delete]` and `write` operations, while ARM provide [different rates for read/write] (https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-manager-request-limits). This causes write operation to stop even if there is available write request quotas.
2. Cloud provider uses rate limiter's `Accept()` instead of `TryAccept()` This causes control loop to wait for prolonged tike `in case of no request quota available` for **all** requests even for those does not require ARM interaction. A case for that the `Service` control loop will wait for a prolonged time trying to create `LoadBalancer` service even though it can fail and work on the next service which is `ClusterIP`. This PR moves cloud provider tp `TryAccept()`
**Which issue(s) this PR fixes**:
Fixes # https://github.com/kubernetes/kubernetes/issues/58770
**Special notes for your reviewer**:
`n/a`
**Release note**:
```release-note
- Separate current ARM rate limiter into read/write
- Improve control over how ARM rate limiter is used within Azure cloud provider
```
cc @jackfrancis (need your help carefully reviewing this one) @brendanburns @jdumars
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Avoid call to get cloud instances
**What this PR does / why we need it**:
if a node does not have the taint, we really don't need to make calls
to get the list of instances from the cloud provider
**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**:
Found when reviewing code for #59887
**Release note**:
```release-note
NONE
```
With d7ddcca231, we lost the logging
of the flags. We should at least log what the command line flags
were used to start processes as those incredibly useful for trouble shooting.
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Process existing cloud nodes in CCM
**What this PR does / why we need it**:
This is a timing issue. If kubelet(s) get started before the CCM is
started, the shared informer event handler does not process them at
all. So we should loop through these before. We run this in a
go wait.Until loop to tolerate errors when listing the nodes and
giving an opportunity for any scripts that may need to setup RBAC
roles etc.
**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#58613
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Graduate kubeletconfig API group to beta
Regarding https://github.com/kubernetes/features/issues/281, this PR moves the kubeletconfig API group to beta.
After #53088, the KubeletConfiguration type should not contain any deprecated or experimental fields, and we should not have to remove any more fields from the type before graduating it to beta.
We need the community to double check for two things, however:
1. Are there any fields currently in the KubeletConfiguration type that you were going to mark deprecated this quarter, but haven't yet?
2. Are there any fields currently in the KubeletConfiguration type that are experimental or alpha, but were not explicitly denoted as such?
Please comment on this PR if you can answer "yes" to either of those two questions. Please cc anyone with a stake in the kubeletconfig API, so we get as much coverage as possible.
/cc @thockin @dchen1107 @Random-Liu @yujuhong @dashpole @tallclair @vishh @abw @freehan @dnardo @bowei @MrHohn @luxas @liggitt @ncdc @derekwaynecarr @mikedanese
@kubernetes/sig-network-pr-reviews, @kubernetes/sig-node-pr-reviews
```release-note
action required: The `kubeletconfig` API group has graduated from alpha to beta, and the name has changed to `kubelet.config.k8s.io`. Please use `kubelet.config.k8s.io/v1beta1`, as `kubeletconfig/v1alpha1` is no longer available.
```
**TODO:**
- [x] Move experimental/non-gated-alpha/soon-to-be-deprecated fields to `KubeletFlags`
- [x] #53088
- [x] #54154
- [x] #54160
- [x] #55562
- [x] #55983
- [x] #57851
- [x] Lift embedded structure out of strings
- [x] #53025
- [x] #54643
- [x] #54823
- [x] #55254
- [x] Resolve relative paths against the location config files are loaded from
- [x] #55648
- [x] Rename to `kubelet.config.k8s.io`
- [x] Comments
- [x] Make sure existing comments at least read sensibly.
- [x] Note default values in comments on the versioned struct.
- [x] Remove any reference to default values in comments on the internal struct.
- [x] Most fields should be `+optional` and `omitempty`. Add where necessary. ~Where omitted, explicitly comment.~ Edit: We should not distinguish between nil and empty, see below items.
- [x] Ensure defaults are specified via `pkg/kubelet/apis/kubelet.config.k8s.io/v1beta1/defaults.go`, not `cmd/kubelet/app/options/options.go`.
- [x] #57770
- [x] Ensure kubeadm does not persist v1alpha1 KubeletConfiguration objects (or feature-gates this functionality)
- [x] Don't make a distinction between empty and nil, because of #43203.
- [x] #59515
- [x] #59681
- [x] Take the opportunity to fix insecure Kubelet defaults @tallclair
- [x] #59666
- [x] Remove CAdvisorPort from KubeletConfiguration wrt #56523.
- [x] #59580
- [x] Hide `ConfigTrialDuration` until we're more sure what to do with it.
- [x] #59628
- [x] Fix `// default: x` comments after rebasing on recent changes.
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Rename ConfigOK to KubeletConfigOk
This is a more accurate name for the condition, as it describes the
status of the Kubelet's configuration.
Also cleans up capitalization of internal names.
```release-note
The ConfigOK node condition has been renamed to KubeletConfigOk.
```
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add node shutdown taint
**What this PR does / why we need it**: we need node stopped taint in order to detach volumes immediately without waiting timeout. More info in issue ticket #58635
**Which issue(s) this PR fixes**
Fixes#58635
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Task 0: Added Alpha flag for NoDaemonSetScheduler feature.
**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 #59194
**Release note**:
```release-note
None
```
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Try longer to fetch initial token.
**What this PR does / why we need it**:
Step towards fixing #56293
**Special notes for your reviewer**:
/kind bug
/priority critial-urgent
@kubernetes/sig-scalability-bugs
/cc @shyamjvs please add to v1.9
**Release note**:
```release-note
NONE
```
The CSI mounter creates the following paths during SetUp():
* .../pods/<podID>/volumes/kubernetes.io~csi/<specVolId>/mount/
* .../pods/<podID>/volumes/kubernetes.io~csi/<specVolId>/volume_data.json
During TearDown(), it does not remove the `.../kubernetes.io~csi/<specVolId>/`
directory, leaving behind orphan volumes: method cleanupOrphanedPodDirs()
complains with 'Orphaned pod found, but volume paths are still present
on disk'.
Fix that by removing the above directory in removeMountDir().
Signed-off-by: Ilias Tsitsimpis <iliastsi@arrikto.com>
Existing nodes are sent via update and not via the add function,
so let's add an UpdateCloudNode and just forward it to the
AddCloudNode. This works fine as all we do is look for the cloud
taint and bail out if it is not present.
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kubelet: revert the status HostIP behavior
**What this PR does / why we need it**:
This PR partially revert #57106 to fix#59889.
The PR #57106 changed the behavior of `generateAPIPodStatus` when a **kubeClient** is nil.
**Release note**:
```release-note
NONE
```
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Standardize on KUBE_PROXY_MODE (not KUBEPROXY_MODE)
**What this PR does / why we need it**:
There's a disconnect between 12d4eac038
and the earlier a6af827898. One says
KUBEPROXY_MODE and another says KUBE_PROXY_MODE. Let's just pick one.
Currently we fail with the following error:
hack/local-up-cluster.sh: line 808: KUBEPROXY_MODE: unbound variable
**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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Create pkg/kubelet/apis/deviceplugin/v1beta1 directory.
The proto stays the same as v1alpha. Only changes Version in
constants.go to "v1beta1" and the BUILD file to pick up the new dir.
```release-note
Adding pkg/kubelet/apis/deviceplugin/v1beta1 API.
```
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Add bound/unbound pv/pvc volume metrics
**What this PR does / why we need it**:
Fix two bugs in bound/unbound pv/pvc volumes metric e2e test:
1. Check `HasRegisteredMaster` in `BeforeEach` instead of each tests because we will grab the metrics in `BeforeEach`
2. Fix `calculateRelativeValues` bug, if there are other PV/PVC exist in the cluster, `calculateRelativeValues` will return a map like `map[string]int64{"some-storage-class-name": 0}`, this will lead to test failure. We should skip these unchanged numbers.
**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#59517
**Release note**:
```release-note
NONE
```
/sig storage
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Fixes volume predicate handler for equiv class
**What this PR does / why we need it**:
Per discussion in #58797 , we are missing some predicate handler in factory.go.
**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#58797
Ref #58222
**Special notes for your reviewer**:
Kindly ping @msau42
**Release note**:
```release-note
Fixes volume predicate handler for equiv class
```
This is a more accurate name for the condition, as it describes the
status of the Kubelet's configuration.
Also cleans up capitalization of internal names.
There's a disconnect between 12d4eac038
and the earlier a6af827898. One says
KUBEPROXY_MODE and another says KUBE_PROXY_MODE. Let's just pick one.
Currently we fail with the following error:
hack/local-up-cluster.sh: line 808: KUBEPROXY_MODE: unbound variable
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Use SetInformers method to register for Node events. (#449)
Till 1.9.2 Kubernetes release vSphere Cloud Provider needs a separate service account which is not needed.
**What this PR does / why we need it**:
In this fix, vSphere CLoud Provider is now implementing SetInformer API to get the required NodeInformer. With this change vSphere Cloud Provider no more requires separate service account for listening NodeEvents.
**Which issue(s) this PR fixes**
Fixes#58747
**Special notes for your reviewer**:
VMware vSphere Cloud Provide internal change
**Release note**:
```release-note
With this fix, separate service account is not needed for vSphere Cloud Provider for listening node events.
```
