KEP-6063keps/sig-node/6063-pod-pid-limit

Per-Pod PID Limit

implementablealphasig-nodelatest v1.381 open finding

KEP on GitHub kep.yaml Ask about this KEP

Add support for setting PID limits at the Pod level to restrict below the node-level kubelet PID limit. This allows individual Pods to specify their own PID limits using spec.resources.limits.pids in the Pod specification. The effective limit is the lower of the Pod-specified value and the node's podPidsLimit.

Facts

Authors: @bhargavigudi @ngopalak-redhat
Approvers: @mrunalp
Reviewers: @haircommander
PRR approvers: @kannon92alpha
Tracking issue: #6063(opens GitHub in a new tab) openmilestone v1.38sig/nodestage/alphatracked/yeslead-opted-in
Milestones: alpha v1.38beta v1.39stable v1.41
Participating SIGs: none
Feature gates: PerPodPIDLimit
Created / last updated: 2026-05-06 / none

Who decided each state, with the evidence.
Decided	Decision	Deciders	Evidence
2026-06-09 09:03 UTC	prr_approval kannon92 gave the production readiness approval for KEP-6063 at alpha on 2026-06-09.	@kannon92 prr_approver	Document 6063.yaml(opens GitHub in a new tab)
2026-06-15 19:03 UTC	stage_graduation KEP-6063 set milestone.alpha to v1.37 in PR #6064, approved by sergeykanzhelev, kannon92, mrunalp; merged by automation (k8s-ci-robot) on 2026-06-15.	@kannon92 approve_command @mrunalp approve_command @haircommander lgtm @sergeykanzhelev approver @sergeykanzhelev approve_command @sergeykanzhelev lgtm @bhargavigudi author @k8s-ci-robot merger	Commit kubernetes/enhancements@7bf6f95b2cbd11e742ef32c9b26708c63844dc56(opens GitHub in a new tab) StatusChange milestone.alpha ∅ → v1.37 (2026-06-09)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#6064 KEP-6063: Configuration for Per-Pod PID Limit(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/4478544071(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/4460502072(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/4710785477(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/4684325249
2026-06-15 19:03 UTC	stage_graduation KEP-6063 set milestone.beta to v1.38 in PR #6064, approved by sergeykanzhelev, kannon92, mrunalp; merged by automation (k8s-ci-robot) on 2026-06-15.	@kannon92 approve_command @mrunalp approve_command @haircommander lgtm @sergeykanzhelev approver @sergeykanzhelev approve_command @sergeykanzhelev lgtm @bhargavigudi author @k8s-ci-robot merger	Commit kubernetes/enhancements@7bf6f95b2cbd11e742ef32c9b26708c63844dc56(opens GitHub in a new tab) StatusChange milestone.beta ∅ → v1.38 (2026-06-09)(opens GitHub in a new tab)
2026-06-15 19:03 UTC	stage_graduation KEP-6063 set milestone.stable to v1.40 in PR #6064, approved by sergeykanzhelev, kannon92, mrunalp; merged by automation (k8s-ci-robot) on 2026-06-15.	@kannon92 approve_command @mrunalp approve_command @haircommander lgtm @sergeykanzhelev approver @sergeykanzhelev approve_command @sergeykanzhelev lgtm @bhargavigudi author @k8s-ci-robot merger	Commit kubernetes/enhancements@7bf6f95b2cbd11e742ef32c9b26708c63844dc56(opens GitHub in a new tab) StatusChange milestone.stable ∅ → v1.40 (2026-06-09)(opens GitHub in a new tab)
2026-06-15 19:03 UTC	stage_graduation KEP-6063 graduated to alpha in PR #6064, approved by sergeykanzhelev, kannon92, mrunalp; merged by automation (k8s-ci-robot) on 2026-06-15.	@kannon92 approve_command @mrunalp approve_command @haircommander lgtm @sergeykanzhelev approver @sergeykanzhelev approve_command @sergeykanzhelev lgtm @bhargavigudi author @k8s-ci-robot merger	Commit kubernetes/enhancements@7bf6f95b2cbd11e742ef32c9b26708c63844dc56(opens GitHub in a new tab) StatusChange stage ∅ → alpha (2026-06-09)(opens GitHub in a new tab)
2026-06-15 19:03 UTC	status_transition KEP-6063 status set to implementable in PR #6064, approved by sergeykanzhelev, kannon92, mrunalp; merged by automation (k8s-ci-robot) on 2026-06-15.	@kannon92 approve_command @mrunalp approve_command @haircommander lgtm @sergeykanzhelev approver @sergeykanzhelev approve_command @sergeykanzhelev lgtm @bhargavigudi author @k8s-ci-robot merger	Commit kubernetes/enhancements@7bf6f95b2cbd11e742ef32c9b26708c63844dc56(opens GitHub in a new tab) StatusChange status ∅ → implementable (2026-06-09)(opens GitHub in a new tab)
2026-09-22 13:28 UTC	milestone_retarget KEP-6063 latest-milestone moved from v1.37 to v1.38 in PR #6258, approved by mrunalp; merged by automation (kubernetes-prow) on 2026-09-22.	@mrunalp approver @haircommander lgtm @bhargavigudi author @kubernetes-prow merger	Commit kubernetes/enhancements@f7bcc551d044cf001aa93d1d84aea343e380e477(opens GitHub in a new tab) StatusChange latest_milestone v1.37 → v1.38 (2026-09-18)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#6258 KEP-6063: Configuration for Per-Pod PID Limit; Update README to match Per-Pod PID Limit Alpha implementation(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/5240689958
2026-09-22 13:28 UTC	milestone_retarget KEP-6063 milestone.alpha moved from v1.37 to v1.38 in PR #6258, approved by mrunalp; merged by automation (kubernetes-prow) on 2026-09-22.	@mrunalp approver @haircommander lgtm @bhargavigudi author @kubernetes-prow merger	Commit kubernetes/enhancements@f7bcc551d044cf001aa93d1d84aea343e380e477(opens GitHub in a new tab) StatusChange milestone.alpha v1.37 → v1.38 (2026-09-18)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#6258 KEP-6063: Configuration for Per-Pod PID Limit; Update README to match Per-Pod PID Limit Alpha implementation(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/5240689958
2026-09-22 13:28 UTC	milestone_retarget KEP-6063 milestone.beta moved from v1.38 to v1.39 in PR #6258, approved by mrunalp; merged by automation (kubernetes-prow) on 2026-09-22.	@mrunalp approver @haircommander lgtm @bhargavigudi author @kubernetes-prow merger	Commit kubernetes/enhancements@f7bcc551d044cf001aa93d1d84aea343e380e477(opens GitHub in a new tab) StatusChange milestone.beta v1.38 → v1.39 (2026-09-18)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#6258 KEP-6063: Configuration for Per-Pod PID Limit; Update README to match Per-Pod PID Limit Alpha implementation(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/5240689958
2026-09-22 13:28 UTC	milestone_retarget KEP-6063 milestone.stable moved from v1.40 to v1.41 in PR #6258, approved by mrunalp; merged by automation (kubernetes-prow) on 2026-09-22.	@mrunalp approver @haircommander lgtm @bhargavigudi author @kubernetes-prow merger	Commit kubernetes/enhancements@f7bcc551d044cf001aa93d1d84aea343e380e477(opens GitHub in a new tab) StatusChange milestone.stable v1.40 → v1.41 (2026-09-18)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#6258 KEP-6063: Configuration for Per-Pod PID Limit; Update README to match Per-Pod PID Limit Alpha implementation(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/5240689958

Metadata, label and milestone changes, oldest first.Showing 1–10 of 33Rows

Status history
At	Kind	Field	Change	Actor	Evidence
2026-05-06 09:15 UTC	label	needs-sig added	none → needs-sig	@k8s-ci-robot	source(opens GitHub in a new tab)
2026-05-06 09:16 UTC	label	sig/node added	none → sig/node	@k8s-ci-robot	source

Relationships as stored, Person → KEP, from kep.yaml(opens GitHub in a new tab)
Person	Relationship
@bhargavigudi GitHub(opens GitHub in a new tab)	—AUTHORED→
@ngopalak-redhat GitHub(opens GitHub in a new tab)	—AUTHORED→
@haircommander GitHub(opens GitHub in a new tab)	—REVIEWS→
@mrunalp

How they connect

Shortest paths in the graph between this KEP and its SIG or one of its people, up to four hops.

Impact of change

Rows returned by the tool
Kep	Depth	Reached	By hop	Open pull requests	Hop	Feature gates	Sigs	People	Open issues
{ "label": "KEP", "key": "keps/sig-node/6063-pod-pid-limit", "title": "Per-Pod PID Limit", "url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-node/6063-pod-pid-limit", "evidence_id": "m247fm4ert3j", "number": 6063, "owning_sig": "sig-node", "status": "implementable", "stage": "alpha", "latest_milestone": "v1.38", "milestone_alpha": "v1.38", "milestone_beta": "v1.39", "milestone_stable": "v1.41", "creation_date": "2026-05-06", "metadata_invalid": false }	2	6	{ "1": { "feature_gates": 1, "sigs": 1, "people": 3, "open_issues": 1 } }	not in graph (merged pull requests only)	none	none	none	none	none
none	none	none	none	none	1	[ { "label": "FeatureGate", "key": "PerPodPIDLimit", "title": "PerPodPIDLimit", "url": "https://github.com/kubernetes/enhancements/blob/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-node/6063-pod-pid-limit/kep.yaml", "evidence_id": "anyjgnp5ozbe", "name": "PerPodPIDLimit" } ]	[ { "label": "SIG", "key": "sig-node", "title": "Node", "url": "https://github.com/kubernetes/community/tree/440e496d3a172234d81728df1bfe43849b589adf/sig-node", "evidence_id": "nrsuxu2xcxa7", "display_name": "Node", "sig_label": "node", "in_scope": true } ]	[ { "label": "Person", "key": "bhargavigudi", "title": "bhargavigudi", "url": "https://github.com/bhargavigudi", "evidence_id": "jkohr6qhch36", "login": "bhargavigudi", "is_bot": false }, { "label": "Person", "key": "ngopalak-redhat", "title": "ngopalak-redhat", "url": "https://github.com/ngopalak-redhat", "evidence_id": "aigpw5yxdycz", "login": "ngopalak-redhat", "is_bot": false }, { "label": "Person", "key": "mrunalp", "title": "mrunalp", "url": "https://github.com/mrunalp", "evidence_id": "oysq4hgp6yuk", "login": "mrunalp", "is_bot": false } ]	[ { "label": "Issue", "key": "kubernetes/enhancements#6063", "title": "Configuration for Per-Pod PID Limit", "url": "https://github.com/kubernetes/enhancements/issues/6063", "evidence_id": "lu4s7ohhjt77", "number": 6063, "state": "open", "created_at_iso": "2026-05-06T09:15:51Z", "labels_current": [ "sig/node", "stage/alpha", "tracked/yes", "lead-opted-in" ], "milestone_current": "v1.38", "is_tracking_issue": true } ]

Rows returned by the tool
Kep	Depth	Reached	By hop	Open pull requests	Hop	Feature gates	Sigs	People	Open issues
{ "label": "KEP", "key": "keps/sig-node/6063-pod-pid-limit", "title": "Per-Pod PID Limit", "url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-node/6063-pod-pid-limit", "evidence_id": "m247fm4ert3j", "number": 6063, "owning_sig": "sig-node", "status": "implementable", "stage": "alpha", "latest_milestone": "v1.38", "milestone_alpha": "v1.38", "milestone_beta": "v1.39", "milestone_stable": "v1.41", "creation_date": "2026-05-06", "metadata_invalid": false }	2	6	{ "1": { "feature_gates": 1, "sigs": 1, "people": 3, "open_issues": 1 } }	not in graph (merged pull requests only)	none	none	none	none	none
none	none	none	none	none	1	[ { "label": "FeatureGate", "key": "PerPodPIDLimit", "title": "PerPodPIDLimit", "url": "https://github.com/kubernetes/enhancements/blob/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-node/6063-pod-pid-limit/kep.yaml", "evidence_id": "anyjgnp5ozbe", "name": "PerPodPIDLimit" } ]	[ { "label": "SIG", "key": "sig-node", "title": "Node", "url": "https://github.com/kubernetes/community/tree/440e496d3a172234d81728df1bfe43849b589adf/sig-node", "evidence_id": "nrsuxu2xcxa7", "display_name": "Node", "sig_label": "node", "in_scope": true } ]	[ { "label": "Person", "key": "bhargavigudi", "title": "bhargavigudi", "url": "https://github.com/bhargavigudi", "evidence_id": "jkohr6qhch36", "login": "bhargavigudi", "is_bot": false }, { "label": "Person", "key": "ngopalak-redhat", "title": "ngopalak-redhat", "url": "https://github.com/ngopalak-redhat", "evidence_id": "aigpw5yxdycz", "login": "ngopalak-redhat", "is_bot": false }, { "label": "Person", "key": "mrunalp", "title": "mrunalp", "url": "https://github.com/mrunalp", "evidence_id": "oysq4hgp6yuk", "login": "mrunalp", "is_bot": false } ]	[ { "label": "Issue", "key": "kubernetes/enhancements#6063", "title": "Configuration for Per-Pod PID Limit", "url": "https://github.com/kubernetes/enhancements/issues/6063", "evidence_id": "lu4s7ohhjt77", "number": 6063, "state": "open", "created_at_iso": "2026-05-06T09:15:51Z", "labels_current": [ "sig/node", "stage/alpha", "tracked/yes", "lead-opted-in" ], "milestone_current": "v1.38", "is_tracking_issue": true } ]

Kep

Depth

Reached

By hop

Open pull requests

Hop

Feature gates

Sigs

People

Open issues

{
  "label": "KEP",
  "key": "keps/sig-node/6063-pod-pid-limit",
  "title": "Per-Pod PID Limit",
  "url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-node/6063-pod-pid-limit",
  "evidence_id": "m247fm4ert3j",
  "number": 6063,
  "owning_sig": "sig-node",
  "status": "implementable",
  "stage": "alpha",
  "latest_milestone": "v1.38",
  "milestone_alpha": "v1.38",
  "milestone_beta": "v1.39",
  "milestone_stable": "v1.41",
  "creation_date": "2026-05-06",
  "metadata_invalid": false
}

{
  "1": {
    "feature_gates": 1,
    "sigs": 1,
    "people": 3,
    "open_issues": 1
  }
}

not in graph (merged pull requests only)

[
  {
    "label": "FeatureGate",
    "key": "PerPodPIDLimit",
    "title": "PerPodPIDLimit",
    "url": "https://github.com/kubernetes/enhancements/blob/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-node/6063-pod-pid-limit/kep.yaml",
    "evidence_id": "anyjgnp5ozbe",
    "name": "PerPodPIDLimit"
  }
]

[
  {
    "label": "SIG",
    "key": "sig-node",
    "title": "Node",
    "url": "https://github.com/kubernetes/community/tree/440e496d3a172234d81728df1bfe43849b589adf/sig-node",
    "evidence_id": "nrsuxu2xcxa7",
    "display_name": "Node",
    "sig_label": "node",
    "in_scope": true
  }
]

[
  {
    "label": "Person",
    "key": "bhargavigudi",
    "title": "bhargavigudi",
    "url": "https://github.com/bhargavigudi",
    "evidence_id": "jkohr6qhch36",
    "login": "bhargavigudi",
    "is_bot": false
  },
  {
    "label": "Person",
    "key": "ngopalak-redhat",
    "title": "ngopalak-redhat",
    "url": "https://github.com/ngopalak-redhat",
    "evidence_id": "aigpw5yxdycz",
    "login": "ngopalak-redhat",
    "is_bot": false
  },
  {
    "label": "Person",
    "key": "mrunalp",
    "title": "mrunalp",
    "url": "https://github.com/mrunalp",
    "evidence_id": "oysq4hgp6yuk",
    "login": "mrunalp",
    "is_bot": false
  }
]

[
  {
    "label": "Issue",
    "key": "kubernetes/enhancements#6063",
    "title": "Configuration for Per-Pod PID Limit",
    "url": "https://github.com/kubernetes/enhancements/issues/6063",
    "evidence_id": "lu4s7ohhjt77",
    "number": 6063,
    "state": "open",
    "created_at_iso": "2026-05-06T09:15:51Z",
    "labels_current": [
      "sig/node",
      "stage/alpha",
      "tracked/yes",
      "lead-opted-in"
    ],
    "milestone_current": "v1.38",
    "is_tracking_issue": true
  }
]

MATCH (k:KEP {key: $key}) RETURN k LIMIT 1 ; MATCH (k:KEP {key: $key}) MATCH path = (k)-[:REPLACES|SUPERSEDED_BY|SEE_ALSO|GATED_BY*1..2]-(n) WHERE n <> k AND (n:KEP OR n:FeatureGate) AND all(x IN nodes(path)[1..-1] WHERE x <> k AND (x:KEP OR (x:FeatureGate AND NOT x.key IN $placeholders))) WITH n, path ORDER BY length(path), [x IN nodes(path) | x.key] WITH n, collect(path)[0] AS path RETURN n AS node, length(path) AS hop, path ORDER BY hop, n.key LIMIT 150 ; UNWIND $keys AS kk MATCH (k:KEP {key: kk}) RETURN k.key AS kep, [(k)-[r_0:OWNED_BY]->(s_0:SIG) WHERE coalesce(r_0.valid_to, $open) = $open | s_0] AS sigs, [(p_1:Person)-[r_1:AUTHORED]->(k) WHERE coalesce(r_1.valid_to, $open) = $open AND coalesce(p_1.is_bot, false) = false | p_1] AS authors, [(p_2:Person)-[r_2:APPROVES]->(k) WHERE coalesce(r_2.valid_to, $open) = $open AND coalesce(p_2.is_bot, false) = false | p_2] AS approvers, [(k)-[r_3:TRACKED_BY]->(i_3:Issue) WHERE coalesce(r_3.valid_to, $open) = $open AND i_3.state = 'open' | i_3] AS open_issues LIMIT 200

Per-Pod PID Limit

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