support colocated placement

[vie-serendipity]

What type of PR is this?

/kind feature
/kind api-change

What this PR does / why we need it

Implementation of kep162.

Which issue(s) this PR fixes

Fixes #

Special notes for your reviewer

Does this PR introduce a user-facing change?

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: vie-serendipity
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[k8s-ci-robot]

Hi @vie-serendipity. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[kannon92]

/ok-to-test

[k8s-ci-robot]

@vie-serendipity: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-lws-test-unit-main	c84db45	link	true	/test pull-lws-test-unit-main
pull-lws-test-integration-main	c84db45	link	true	/test pull-lws-test-integration-main
pull-lws-test-e2e-main-1-28	c84db45	link	true	/test pull-lws-test-e2e-main-1-28
pull-lws-test-e2e-main-1-29	c84db45	link	true	/test pull-lws-test-e2e-main-1-29
pull-lws-test-e2e-main-1-31	c84db45	link	true	/test pull-lws-test-e2e-main-1-31
pull-lws-test-e2e-main-1-30	c84db45	link	true	/test pull-lws-test-e2e-main-1-30

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-sigs/prow repository. I understand the commands that are listed here.

[vie-serendipity]

Sorry for the late response, I will fix the issues within e2e tests.

[ahg-g]

We need to resolve the open comments in the KEP

[vie-serendipity]

Okay, I'll think about the solution and update in the KEP.