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# SIG Node Governance | ||
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## Scope | ||
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SIG Node is responsible for the components that support the controlled | ||
interactions between pods and host resources. We manage the lifecycle of pods | ||
that are scheduled to a node. We focus on enabling a broad set of workload | ||
types, including hardware and performance sensitive workloads. We maintain | ||
isolation boundaries between pods on a node, as well as the pod and the host. We | ||
aim to continuously improve node reliability. | ||
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### In scope | ||
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The following topics fall under ownership of this SIG. | ||
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* Kubelet related features (e.g. Pod lifecycle) | ||
* Node level performance and scalability (with [sig-scalability](../sig-scalability)) | ||
* Node reliability (prooblem detection and remediation) | ||
* Node lifecycle management (with [sig-cluster-lifecycle](../sig-cluster-lifecycle)) | ||
* Container runtimes | ||
* Device management | ||
* Images, package management | ||
* Host resource management (with [sig-scheduling](../sig-scheduling)) | ||
* Hardware discovery | ||
* Issues related to node, pod, container monitoring (with [sig-instrumentation](../sig-instrumentation)) | ||
* Node level security and Pod isolation (with [sig-auth](../sig-auth)) | ||
* Host OS and/or kernel interactions (to a limited extent) | ||
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### Out of scope | ||
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The following topics are out of the scope of this SIG | ||
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* network management | ||
* persistent storage management | ||
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## Roles | ||
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Membership for roles tracked in: [OWNERS] | ||
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- **Chairs** | ||
- Run operations and processes governing the SIG | ||
- *MUST* remain active in the role and are removed from the position if they | ||
are unresponsive for > 3 months and *MAY* be removed if not proactively | ||
working with other chairs to fulfill responsibilities. To remove an | ||
inactive chair, a majority vote from existing chairs should occur. If a | ||
[super-majority] is not possible, the [steering-committee] may sponsor | ||
removal. | ||
- *MAY* declare an intention to take sabbatical for no more than 3 months in a | ||
calendar year. Chairs should notify existing chairs of their intent, and | ||
absent at least 2 remaining chairs, *MUST* nominate a temporary replacement | ||
from the existing set of technical leads during this period. | ||
- *SHOULD* represent a diverse set of organizations. This is predicated on | ||
interest in the role from multiple organizations with qualified candidates. | ||
Qualification is measured by existing chairs and *SHOULD* be supported by a | ||
majority of SIG Members under [lazy-consensus]. | ||
- *MAY* decide to step down at any time and propose a replacement. Use lazy | ||
consensus amongst chairs with fallback on majority vote to accept proposal. | ||
This *SHOULD* be supported by a majority of SIG Members. | ||
- *MAY* select additional chairs through a [super-majority] vote amongst | ||
chairs. This *SHOULD* be supported by a majority of SIG Members. | ||
- Number: 1-3 | ||
- Defined in [sigs.yaml] | ||
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- **Technical Leads** | ||
- Technical leads seeded by legacy SIG chairs from subproject owners | ||
- Establish new subprojects | ||
- Decommission existing subprojects | ||
- Sponsor working groups | ||
- End of life working groups | ||
- *MUST* ensure that all areas of the SIG (including those that fall outside | ||
subprojects) have active owners. | ||
- *MAY* set SIG milestone priorities. | ||
- *SHOULD* act as an escalation point for technical disputes in subprojects. | ||
- *MUST* resolve issues impacting multiple subprojects in the SIG. | ||
- *SHOULD* meet or communicate regularly enough to ensure they are aligned. | ||
Decisions made by technical leads should be consistent across the SIG. If | ||
technical leads are providing inconsistent direction, then they *MUST* align | ||
themselves. | ||
- *MAY* select additional tech leads through a [super-majority] vote amongst | ||
tech leads and chairs. This *SHOULD* be supported by a majority of SIG | ||
Members under [lazy-consensus]. | ||
- *SHOULD* represent a diverse set of organizations. This is predicated on | ||
interest in the role from multiple organizations with qualified candidates. | ||
- *MUST* remain active in the role and are automatically removed from the | ||
position if they are unresponsive for > 3 months and *MAY* be removed if not | ||
proactively working with other technical leads to fulfill responsibilities. | ||
Removal of a technical lead requires [super-majority] vote amongst tech | ||
leads and chairs. | ||
- *MAY* declare an intention to take sabbatical for no more than 3 months in a | ||
calendar year. Chairs should notify existing chairs of their intent, and | ||
absent at least 2 remaining chairs, *MUST* nominate a temporary replacement | ||
from the existing set of technical leads during this period. | ||
- Technical Leads *SHOULD* represent a diverse set of organizations. This is | ||
predicated on interest in the role from multiple organizations with | ||
qualified candidates. | ||
- *SHOULD* have a record of consistent solid technical judgement and | ||
leadership over a sustained period especially over areas for which they are | ||
the de-facto lead | ||
- Number: 3-7 | ||
- Defined in [sigs.yaml] and [OWNERS] files | ||
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- **Subproject Owners** | ||
- Scoped to a subproject defined in [sigs.yaml] | ||
- Seed subproject owners *MAY* include initial proposal author(s) and/or Tech | ||
Leads | ||
- *MUST* be an escalation point for technical decisions and failing or flaky | ||
tests in the subproject | ||
- *MUST* proactively maintain the subproject health and status or delegate | ||
this responsibility. For actively developed projects, this *SHOULD* include | ||
setting milestone priorities, tracking release bits, and ensure adequate | ||
test coverage. For maintenance mode projects, this *SHOULD* include | ||
maintaining test health and ensuring compatibility with new features. | ||
- *MUST* remain active in the role and are automatically removed from the | ||
position if they are unresponsive for > 3 months. | ||
- *MAY* declare an intention to take sabbatical for no more than 3 months in a | ||
calendar year. Should notify existing owners of their intent, and *MAY* | ||
nominate a temporary replacement from the existing set of owners during this | ||
period. | ||
- *SHOULD* have a record of consistent solid technical judgement over a | ||
sustained period, especially over areas for which they are the owner | ||
- *MAY* be removed if not proactively working with other Subproject Owners to | ||
fulfill responsibilities. | ||
- *MAY* decide to step down at any time and propose a replacement. Use | ||
[lazy-consensus] amongst subproject owners with fallback on majority vote to | ||
accept proposal. This *SHOULD* be supported by a majority of subproject | ||
contributors (those having some role in the subproject). | ||
- *MAY* select additional subproject owners through a [super-majority] vote | ||
amongst subproject owners. This *SHOULD* be supported by a majority of | ||
subproject contributors (through [lazy-consensus] with fallback on voting). | ||
- *SHOULD* work to ensure technical excellence within area | ||
- actively work to reduce complexity of the area | ||
- define general acceptance criteria for work as needed (code, test, | ||
documentation guidelines, etc) | ||
- consider cross-project interactions in technical decisions | ||
- prioritize urgent issues appropriately (e.g. addressing critical bugs, | ||
security vulnerabilities, or test failures) | ||
- Number: 1-7 per subproject (depending on size and scope) | ||
- Defined in [sigs.yaml] [OWNERS] files | ||
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- Members | ||
- *MUST* maintain health of at least one subproject or the health of the SIG | ||
- *MUST* show sustained contributions to at least one subproject or to the SIG | ||
- *SHOULD* hold some documented role or responsibility in the SIG and / or at | ||
least one subproject (e.g. reviewer, approver, etc) | ||
- *MAY* build new functionality for subprojects | ||
- *MAY* participate in decision making for the subprojects they hold roles in | ||
- *SHOULD* include all reviewers and approvers in [OWNERS] files for | ||
subprojects | ||
- *MUST* remain active in the role and may be removed from the position if | ||
they are unresponsive for > 1 year. | ||
- *MAY* be removed if not proactively working with other Subproject Owners to | ||
fulfill responsibilities. | ||
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## Organizational management | ||
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- SIG meets weekly on [zoom] with [agenda in meeting notes] | ||
- *SHOULD* be facilitated by chairs unless delegated to specific Members | ||
- SIG overview and deep-dive sessions organized for Kubecon | ||
- *SHOULD* be organized by chairs unless delegated to specific Members | ||
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- Contributing instructions defined in the SIG CONTRIBUTING.md | ||
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### Project management | ||
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#### Subproject creation | ||
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- Subprojects *MAY* be created by [KEP] proposal and *MUST* be approved by at | ||
least 1 tech lead, and accepted by [lazy-consensus] with fallback on majority | ||
vote of SIG Technical Leads. The result *SHOULD* be supported by the majority | ||
of SIG members. | ||
- KEP *MUST* establish subproject owners | ||
- [sigs.yaml] *MUST* be updated to include subproject information and [OWNERS] | ||
files with subproject owners | ||
- Where subprojects processes differ from the SIG, they must document how | ||
- e.g. if subprojects release separately - they must document how release | ||
and planning is performed | ||
- Subprojects may not be seeded from existing repositories pending CNCF | ||
process definition | ||
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### Technical processes | ||
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Subprojects of the SIG *MUST* use the following processes unless explicitly | ||
following alternatives they have defined. | ||
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- Proposing and making decisions | ||
- Proposals *SHOULD* be sent as [KEP] PRs and published to | ||
[kubernetes-sig-node] as an announcement | ||
- Proposals *MUST* be presented and discussed in at least 1 SIG node meeting | ||
- If the authors are unable to attend, another community member can be found | ||
to champion the proposal. | ||
- Proposals *SHOULD* follow [KEP] decision making process | ||
- For proposed extensions to a subproject, the subproject *MUST* be | ||
identified in the KEP, and approvers *MUST* include subproject owners | ||
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- Test health | ||
- Canonical health of code published to [testgrid] | ||
- Consistently broken tests automatically send an alert to | ||
[kubernetes-sig-node-test-failures] | ||
- SIG members are responsible for responding to broken tests alert. PRs that | ||
break tests should be rolled back if not fixed within 1 business day. | ||
- Test dashboard checked and reviewed at start of each SIG meeting. Owners | ||
assigned for any broken tests and followed up during the next SIG meeting. | ||
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[steering-committee]: https://github.com/kubernetes/community/blob/master/committee-steering/OWNERS | ||
[lazy-consensus]: http://communitymgt.wikia.com/wiki/Lazy_consensus | ||
[super-majority]: https://en.wikipedia.org/wiki/Supermajority#Two-thirds_vote | ||
[KEP]: https://github.com/kubernetes/community/blob/master/keps/0000-kep-template.md | ||
[sigs.yaml]: https://github.com/kubernetes/community/blob/master/sigs.yaml | ||
[OWNERS]: https://github.com/kubernetes/community/blob/master/sig-auth/OWNERS | ||
[agenda and meeting notes]: https://docs.google.com/document/d/1Ne57gvidMEWXR70OxxnRkYquAoMpt56o75oZtg-OeBg/edit | ||
[zoom]: https://zoom.us/j/4799874685 | ||
[testgrid]: https://k8s-testgrid.appspot.com/sig-node#Summary | ||
[kubernetes-sig-node]: https://groups.google.com/forum/#!forum/kubernetes-sig-node | ||
[kubernetes-sig-node-test-failures]: https://groups.google.com/forum/#!forum/kubernetes-sig-node-test-failures |