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WIP: When using subnet discovery, you can disable the primary subnet with kubernetes.io/role/cni=0 #3121

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@ROunofF ROunofF commented Nov 22, 2024

What type of PR is this? feature

Which issue does this PR fix?: part of #3067

What does this PR do / Why do we need it?:
On initialization we check if the primary subnet is tagged with kubernetes.io/role/cni = 0 and we skip to other subnet for IP adressing.

Testing done on this change: Build on local and deploy on cluster, haven't tested all possibilities yet.

Will this PR introduce any new dependencies?: None

Will this break upgrades or downgrades? Has updating a running cluster been tested?: It was tested, there is a warning that should be posted that the value 0 now disable the feature.

Does this change require updates to the CNI daemonset config files to work?: No

Does this PR introduce any user-facing change?:

It's now possible to skip the Primary subnet by tagging it with kubernetes.io/role/cni=0 when using Enhanced Subnet Discovery.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

ROunofF and others added 8 commits October 31, 2024 11:09
* Bump sigs.k8s.io/controller-runtime from 0.19.0 to 0.19.1

Bumps [sigs.k8s.io/controller-runtime](https://github.com/kubernetes-sigs/controller-runtime) from 0.19.0 to 0.19.1.
- [Release notes](https://github.com/kubernetes-sigs/controller-runtime/releases)
- [Changelog](https://github.com/kubernetes-sigs/controller-runtime/blob/main/RELEASE.md)
- [Commits](kubernetes-sigs/controller-runtime@v0.19.0...v0.19.1)

---
updated-dependencies:
- dependency-name: sigs.k8s.io/controller-runtime
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Bump github.com/onsi/gomega from 1.34.1 to 1.35.1

Bumps [github.com/onsi/gomega](https://github.com/onsi/gomega) from 1.34.1 to 1.35.1.
- [Release notes](https://github.com/onsi/gomega/releases)
- [Changelog](https://github.com/onsi/gomega/blob/master/CHANGELOG.md)
- [Commits](onsi/gomega@v1.34.1...v1.35.1)

---
updated-dependencies:
- dependency-name: github.com/onsi/gomega
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Bump k8s.io/api from 0.31.1 to 0.31.2

Bumps [k8s.io/api](https://github.com/kubernetes/api) from 0.31.1 to 0.31.2.
- [Commits](kubernetes/api@v0.31.1...v0.31.2)

---
updated-dependencies:
- dependency-name: k8s.io/api
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Bump golang.org/x/sys from 0.25.0 to 0.26.0 in /test/agent

Bumps [golang.org/x/sys](https://github.com/golang/sys) from 0.25.0 to 0.26.0.
- [Commits](golang/sys@v0.25.0...v0.26.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Bumps [k8s.io/cli-runtime](https://github.com/kubernetes/cli-runtime) from 0.30.2 to 0.31.2.
- [Commits](kubernetes/cli-runtime@v0.30.2...v0.31.2)

---
updated-dependencies:
- dependency-name: k8s.io/cli-runtime
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
* Update to Changelog, config and scripts.

* Add Version in Changelog.

Co-authored-by: Senthil Kumaran <senthilx@amazon.com>
Added unit test
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4 participants