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Promote LocalStorageCapacityIsolation feature to beta #60159

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@jingxu97 jingxu97 commented Feb 21, 2018

The LocalStorageCapacityIsolation feature added a new resource type ResourceEphemeralStorage "ephemeral-storage" so that this resource can be allocated, limited, and consumed as the same way as CPU/memory. All the features related to resource management (resource request/limit, quota, limitrange) are available for local ephemeral storage.

This local ephemeral storage represents the storage for root file system, which will be consumed by containers' writtable layer and logs. Some volumes such as emptyDir might also consume this storage.

Fixes issue #60160

This PR also fixes data race issues discovered after open the feature gate. Basically setNodeStatus function in kubelet could be called by multiple threads so the data needs lock protection. Put the fix with this PR for easy testing.

Release note:

ACTION REQUIRED: LocalStorageCapacityIsolation feature is beta and enabled by default. 

@k8s-ci-robot k8s-ci-robot added size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. labels Feb 21, 2018
@k8s-ci-robot k8s-ci-robot removed the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Feb 21, 2018
@jingxu97 jingxu97 self-assigned this Feb 21, 2018
@k8s-ci-robot k8s-ci-robot added size/S Denotes a PR that changes 10-29 lines, ignoring generated files. and removed size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Feb 21, 2018
@jingxu97 jingxu97 force-pushed the Feb/localephemeralBeta branch 4 times, most recently from 88fd6c0 to f00f52e Compare February 22, 2018 21:37
@k8s-ci-robot k8s-ci-robot added size/M Denotes a PR that changes 30-99 lines, ignoring generated files. and removed size/S Denotes a PR that changes 10-29 lines, ignoring generated files. labels Feb 22, 2018
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@thockin @dchen1107 Could you please help approve this PR? Thanks!

@k8s-ci-robot k8s-ci-robot added size/L Denotes a PR that changes 100-499 lines, ignoring generated files. and removed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Feb 23, 2018
@k8s-ci-robot k8s-ci-robot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Feb 23, 2018
@k8s-ci-robot k8s-ci-robot removed the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Feb 23, 2018
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cc @dchen1107 @vishh

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cc @thockin

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jingxu97 commented Mar 2, 2018

/test pull-kubernetes-e2e-gce

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jingxu97 commented Mar 2, 2018

/test pull-kubernetes-unit

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jingxu97 commented Mar 2, 2018

kind/feature
sig/storage
priority/critical-urgent

@jingxu97 jingxu97 added kind/feature Categorizes issue or PR as related to a new feature. sig/storage Categorizes an issue or PR as relevant to SIG Storage. priority/critical-urgent Highest priority. Must be actively worked on as someone's top priority right now. priority/important-soon Must be staffed and worked on either currently, or very soon, ideally in time for the next release. and removed milestone/incomplete-labels priority/critical-urgent Highest priority. Must be actively worked on as someone's top priority right now. labels Mar 2, 2018
@@ -281,12 +282,23 @@ func (kl *Kubelet) GetVersionInfo() (*cadvisorapiv1.VersionInfo, error) {

// GetCachedMachineInfo assumes that the machine info can't change without a reboot
func (kl *Kubelet) GetCachedMachineInfo() (*cadvisorapiv1.MachineInfo, error) {
if kl.machineInfo == nil {
return kl.machineInfo.getCachedMachineInfo(kl)
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do we still need this?

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talked offline. Remove this change, instead directly setting kl.machienInfo when newMainKubelet.

The LocalStorageCapacityIsolation feature added a new resource type
ResourceEphemeralStorage "ephemeral-storage" so that this resource can
be allocated, limited, and consumed as the same way as CPU/memory. All
the features related to resource management (resource request/limit, quota, limitrange) are avaiable for local ephemeral storage.

This local ephemeral storage represents the storage for root file system, which will be consumed by containers' writtable layer and logs. Some volumes such as emptyDir might also consume this storage.
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dashpole commented Mar 2, 2018

/lgtm
good work!

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Mar 2, 2018
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[MILESTONENOTIFIER] Milestone Pull Request: Up-to-date for process

@NickrenREN @dashpole @jingxu97 @thockin

Pull Request Labels
  • sig/storage: Pull Request will be escalated to these SIGs if needed.
  • priority/important-soon: Escalate to the pull request owners and SIG owner; move out of milestone after several unsuccessful escalation attempts.
  • kind/feature: New functionality.
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dashpole, jingxu97, NickrenREN, thockin

The full list of commands accepted by this bot can be found here.

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/test all [submit-queue is verifying that this PR is safe to merge]

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Automatic merge from submit-queue (batch tested with PRs 60159, 60731, 60720, 60736, 60740). If you want to cherry-pick this change to another branch, please follow the instructions here.

@k8s-github-robot k8s-github-robot merged commit 47e6463 into kubernetes:master Mar 3, 2018
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@jingxu97: The following tests failed, say /retest to rerun them all:

Test name Commit Details Rerun command
pull-kubernetes-unit 7824075cd830cf7d1f5fda99ebcacbcf8e099929 link /test pull-kubernetes-unit
pull-kubernetes-e2e-gce b2e744c link /test pull-kubernetes-e2e-gce

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

tengqm added a commit to tengqm/website that referenced this pull request Mar 5, 2018
A follow-up to the kubernetes/kubernetes#60159 change which has promoted
the `LocalStorageCapacityIsolation` feature gate to Beta.
k8s-ci-robot pushed a commit to kubernetes/website that referenced this pull request Mar 5, 2018
A follow-up to the kubernetes/kubernetes#60159 change which has promoted
the `LocalStorageCapacityIsolation` feature gate to Beta.
steveperry-53 pushed a commit to kubernetes/website that referenced this pull request Mar 27, 2018
* 1.10 update (#7151)

* Fix partition value expected behaviour explanation (#7123)

Fixes issue #7057

* Correct "On-Premise" to "On-Premises"

* Updates the Calico installation page (#7094)

* All files for Haufe Groups case study (#7051)

* Fix typo (#7127)

* fix typo of device-plugins.md (#7106)

* fix broken links (#7136)

* Updated configure-service-account (#7147)

Error from server resolved by escaping kubectl patch serviceaccount default -p '{"imagePullSecrets": [{"name": "myregistrykey"}]}' JSON string by '\'

* Remove docs related to 'require-kubeconfig' (#7138)

With kubernetes/kubernetes#58367 merged, v1.10 will not use the
"require-kubeconfig" flag. The flag has become a no-op solely to ensure
existing deployments won't break.

* Added Verification Scenario for a Pod that Uses a PVC in Terminating State (#7164)

The below PR:
kubernetes/kubernetes#55873
modified scheduler in such a way that scheduling of a pod that uses a PVC in Terminating state fails.

That's why verification of such scenario was added to documentation.

* fix LimitPodHardAntiAffinityTopology name (#7221)

* Document the removal of the KubeletConfigFile feature gate (#7140)

With kubernetes/kubernetes#58978 merged, the said feature gate is
removed. This PR removes texts related to the gate and revises the
Feature Gates reference to reflect this change.

* deprecate three admission controller (#7363)

* Document the removal of Accelerators feature gate (#7389)

The `Accelerators` feature gate will be removed in 1.11. 1.10 will be
its last mile.
References: kubernetes/kubernetes#57384

* Update local storage docs for beta (#7473)

* Document that HugePages feature gate is Beta (#7387)

The `HugePages` feature gate has graduated to Beta in v1.10. This PR
documents this fact.

* Add HyperVContainer feature gates (#7502)

* Remove the beta reference from Taints and Tolerations doc (#7493)

* Kms provider doc (#7479)

* Kms provider doc

* issue# 7399, Create KMS-provider.md and update encrypt-data.md

* address review comments

* Document that Device Plugin feature is Beta (1.10) (#7512)

* Add docs for CRD features for 1.10 (#7439)

* Add docs for CRD features for 1.10

* Add CustomResourcesSubresources to list of feature gates

* Add latest changes to custom resources doc

* Add crds as abbreviated alias (#7437)

* Bring PVC Protection Feature to Beta (#7165)

* Bring PVC Protection Feature to Beta

The PR: kubernetes/kubernetes#59052
brought PVC Protection feature to beta.

That's why the documentation is updated accordingly.

* The PVC Protection feature was renamed to Storage Protection. That's why the documentation is updated.

* promote PodNodeSelector to stable; document detailed behavior (#7134)

* promote PodNodeSelector to stable; document detailed behavior

* respond to feedback

* Update CPU manager feature enabling (#7390)

With `CPUManager` feature graduating to beta. No explicit enabling is
required starting v1.10.
References: kubernetes/kubernetes#55977

* Adding block volumeMode documentation for local volumes. (#7531)

Code review comments.

Changed property to field.

Address tech review comment.

* remove description kubectl --show-all (#7574)

--show-all has been deprecated and set to true by default.
kubernetes/kubernetes#60210

* fix description about contribute style guide (#7592)

* fix description about KUBECONFIG (#7589)

s/envrionment/environment

* fix description about cni (#7588)

s/simultanously/simultaneously/

* fix description about MutatingAdmissionWebhook and ValidatingAdmissionWebhook (#7587)

* fix description about persistent volume binding (#7590)

s/slighty/slightly/

* Doc change for configurable pod resolv.conf Beta (#7611)

* fix description about out of resource handling (#7597)

s/threshhold/threshold

* fix description about zookeeper (#7598)

s/achive/achieve

* fix description about kubeadm (#7594)

s/compatability/compatibility/

* fix description about kubeadm (#7593)

* fix description about kubeadm implementation details (#7595)

* fix description about api concepts (#7596)

* Storage Protection was renamed to Storage Object in Use Protection (#7576)

* Storage Protection was renamed to Storage Object in Use Protection

The K8s PR: kubernetes/kubernetes#59901
renamed Storage Protection to Storage Object in Use Protection.

That's why the same is also renamed in the documentation.

* Moved Storage Object in Use Protection admission plugin description down according to alphabetic order.

* Use PSP from policy API group. (#7562)

* update kubeletconfig docs for v1.10, beta (#7561)

* Update port-forwarding docs (#7575)

* add pv protection description (#7620)

* fix description about client library (#7634)

* Add docs on configuring NodePort IP (#7631)

* Document that LocalStorageCapacityIsolation is beta (#7635)

A follow-up to the kubernetes/kubernetes#60159 change which has promoted
the `LocalStorageCapacityIsolation` feature gate to Beta.

* Update CoreDNS docs for beta (#7638)

* Update CoreDNS docs for beta

* Review comments

* Fix typo (#7640)

* Update feature gates move to beta (#7662)

* Added the inability to use colon ':' character as environment variable names and described workaround (#7657)

* merge master to 1.10, with fixes (#7682)

* Flag names changed (s/admission-control/enable-admission-plugins); disable-admissions-plugin entry added; removed reference to admission controller/plugins requiring set order (for v1.10), redundant example enabling specific plugin, and redundant version-specific info (#7449)

* Documentation for MountPropagation beta (#7655)

* Remove job's scale-related operations (#7684)

* authentication: document client-go exec plugins (#7648)

* authentication: document client-go exec plugins

* Update authentication.md

* Update local ephemeral storage feature to beta (#7685)

Update local ephemeral storage feature to beta

* Update docs for windows container resources (#7653)

* add server-side print docs (#7671)

* Create a task describing Pod process namespace sharing (#7489)

* Add external metrics to HPA docs (#7664)

* Add external metrics to HPA docs

* Update horizontal-pod-autoscale-walkthrough.md

* Apply review comments to HPA walkthrough

* remove description about "scale jobs" (#7712)

* CSI Docs for K8s v1.10 (#7698)

* Add a warning about increased memory consumption for audit logging feature. (#7725)

Signed-off-by: Mik Vyatskov <vmik@google.com>

* Update Audit Logging documentation for 1.10 (#7679)

Signed-off-by: Mik Vyatskov <vmik@google.com>

* Fix stage names in audit logging documentation (#7746)

Signed-off-by: Mik Vyatskov <vmik@google.com>

* Feature gate update for release 1.10 (#7742)

* State in the docs that the value of default Node labels are not reliable. (#7794)

* Kill the reference to --admission-control option (#7755)

The `--admission-control` option has been replaced by two new options in
v1.10. This PR kills the last appearance of the old option in the doc.

* Pvcprotection toc (#7807)

* Refreshing installation instructions (#7495)

* Refreshing installation instructions

Added conjure-up. Updated displays and juju versions to current versions.

* Updated anchors

* Fixed image value version typo (#7768)

Was inconsistent with other values

* Update flocker reference to the github repo (#7784)

* Fix typo in federation document (#7779)

* an user -> a user (#7778)

* Events are namespaced (#7767)

* fix 'monitoring' link lose efficacy problem' (#7764)

* docs/concepts/policy/pod-security-policy.md: minor fix. (#7659)

* Update downward-api-volume-expose-pod-information.md (#7771)

* Update downward-api-volume-expose-pod-information.md

The pod spec puts the downward api files into /etc/podinfo, not directly in /etc. Updated docs to reflect this fact.

* Update downward-api-volume-expose-pod-information.md

One more spot needed fixing.

* Update downward-api-volume-expose-pod-information.md

Yet another fix, in the container example.

* Add Amadeus Case Study (#7783)

* Add Amadeus Case Study

* add Amadeus logo

* Fixed Cyrillic с in 'kube-proxy-cm' (#7787)

There was a typo (wrong character) in kube-proxy-cm.yaml - Cyrillic с (UTF-8 0x0441) was used instead of Latin c.

* install-kubectl: choose one installation method (#7705)

The previous text layout suggested that all installations had to be done, one after another.

* Update install-kubeadm.md (#7781)

Add note to kubeadm install instruction to help install in other arch i.e. aarch64, ppc64le etc.

* repair failure link (#7788)

* repair failure link

* repair failure link

* do change as required

* Update k8s201.md (#7777)

* Update k8s201.md

Change instructions to download yams files directly from the website (as used in other pages.)

Added instructions to delete labeled pod to avoid warnings in the subsequent deployment step.

* Update k8s201.md

Added example of using the exposed host from the a node running Kubernetes. (This works on AWS with Weave; not able to test it on other variations...)

* Gramatical fix to kompose introduction (#7792)

The original wording didn't through very well. As much of the original sentence has been preserved as possible, primarily to ensure the kompose web address is see both in text and as a href link.

* update amadeus.html (#7800)

* Fix a missing word in endpoint reconciler section (#7804)

* add toc entry for pvcprotection downgrade issue doc

* Pvcprotection toc (#7809)

* Refreshing installation instructions (#7495)

* Refreshing installation instructions

Added conjure-up. Updated displays and juju versions to current versions.

* Updated anchors

* Fixed image value version typo (#7768)

Was inconsistent with other values

* Update flocker reference to the github repo (#7784)

* Fix typo in federation document (#7779)

* an user -> a user (#7778)

* Events are namespaced (#7767)

* fix 'monitoring' link lose efficacy problem' (#7764)

* docs/concepts/policy/pod-security-policy.md: minor fix. (#7659)

* Update downward-api-volume-expose-pod-information.md (#7771)

* Update downward-api-volume-expose-pod-information.md

The pod spec puts the downward api files into /etc/podinfo, not directly in /etc. Updated docs to reflect this fact.

* Update downward-api-volume-expose-pod-information.md

One more spot needed fixing.

* Update downward-api-volume-expose-pod-information.md

Yet another fix, in the container example.

* Add Amadeus Case Study (#7783)

* Add Amadeus Case Study

* add Amadeus logo

* Fixed Cyrillic с in 'kube-proxy-cm' (#7787)

There was a typo (wrong character) in kube-proxy-cm.yaml - Cyrillic с (UTF-8 0x0441) was used instead of Latin c.

* install-kubectl: choose one installation method (#7705)

The previous text layout suggested that all installations had to be done, one after another.

* Update install-kubeadm.md (#7781)

Add note to kubeadm install instruction to help install in other arch i.e. aarch64, ppc64le etc.

* repair failure link (#7788)

* repair failure link

* repair failure link

* do change as required

* Update k8s201.md (#7777)

* Update k8s201.md

Change instructions to download yams files directly from the website (as used in other pages.)

Added instructions to delete labeled pod to avoid warnings in the subsequent deployment step.

* Update k8s201.md

Added example of using the exposed host from the a node running Kubernetes. (This works on AWS with Weave; not able to test it on other variations...)

* Gramatical fix to kompose introduction (#7792)

The original wording didn't through very well. As much of the original sentence has been preserved as possible, primarily to ensure the kompose web address is see both in text and as a href link.

* update amadeus.html (#7800)

* Fix a missing word in endpoint reconciler section (#7804)

* add toc entry for pvcprotection downgrade issue doc

* revert TOC change

* Release 1.10 (#7818)

* Refreshing installation instructions (#7495)

* Refreshing installation instructions

Added conjure-up. Updated displays and juju versions to current versions.

* Updated anchors

* Fixed image value version typo (#7768)

Was inconsistent with other values

* Update flocker reference to the github repo (#7784)

* Fix typo in federation document (#7779)

* an user -> a user (#7778)

* Events are namespaced (#7767)

* fix 'monitoring' link lose efficacy problem' (#7764)

* docs/concepts/policy/pod-security-policy.md: minor fix. (#7659)

* Update downward-api-volume-expose-pod-information.md (#7771)

* Update downward-api-volume-expose-pod-information.md

The pod spec puts the downward api files into /etc/podinfo, not directly in /etc. Updated docs to reflect this fact.

* Update downward-api-volume-expose-pod-information.md

One more spot needed fixing.

* Update downward-api-volume-expose-pod-information.md

Yet another fix, in the container example.

* Add Amadeus Case Study (#7783)

* Add Amadeus Case Study

* add Amadeus logo

* Fixed Cyrillic с in 'kube-proxy-cm' (#7787)

There was a typo (wrong character) in kube-proxy-cm.yaml - Cyrillic с (UTF-8 0x0441) was used instead of Latin c.

* install-kubectl: choose one installation method (#7705)

The previous text layout suggested that all installations had to be done, one after another.

* Update install-kubeadm.md (#7781)

Add note to kubeadm install instruction to help install in other arch i.e. aarch64, ppc64le etc.

* repair failure link (#7788)

* repair failure link

* repair failure link

* do change as required

* Update k8s201.md (#7777)

* Update k8s201.md

Change instructions to download yams files directly from the website (as used in other pages.)

Added instructions to delete labeled pod to avoid warnings in the subsequent deployment step.

* Update k8s201.md

Added example of using the exposed host from the a node running Kubernetes. (This works on AWS with Weave; not able to test it on other variations...)

* Gramatical fix to kompose introduction (#7792)

The original wording didn't through very well. As much of the original sentence has been preserved as possible, primarily to ensure the kompose web address is see both in text and as a href link.

* update amadeus.html (#7800)

* Fix a missing word in endpoint reconciler section (#7804)

* Partners page updates (#7802)

* Partners page updates

* Update to ZTE link

* Make using sysctls a task instead of a concept (#6808)

Closes: #4505

* add a note when mount a configmap to pod (#7745)

* adjust a note format (#7812)

* Update docker-cli-to-kubectl.md (#7748)

* Update docker-cli-to-kubectl.md

Edited the document for adherence to the style guide and word usage.

* Update docker-cli-to-kubectl.md

* Incorporated the changes suggested.

* Mount propagation update to include docker config (#7854)

* update overridden config for 1.10 (#7847)

* update overridden config for 1.10

* fix config file per comments

* Update Extended Resource doc wrt cluster-level resources (#7759)
zacharysarah pushed a commit to kubernetes/website that referenced this pull request Apr 16, 2018
A follow-up to the kubernetes/kubernetes#60159 change which has promoted
the `LocalStorageCapacityIsolation` feature gate to Beta.
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