Add a new concept page for Sidecar containers

[T-Lakshmi]

Fixes #42762

[shannonxtreme]

Is this mostly a move of the existing content to the new concept page?

[T-Lakshmi]

@shannonxtreme

Is this mostly a move of the existing content to the new concept page?

Yes, But there are few changes and addon points also.

[tamilselvan1102]

I think below two changes are required

1. Add label [Sidecar containers] and make a link with [sidecar-containers.md] page in the left side menu below the [Init Containers].
2. Add [Sidecar containers] link from [whatsnext] in [Init Containers].

[T-Lakshmi]

Hi @tamilselvan1102,

Add label [Sidecar containers] and make a link with [sidecar-containers.md] page in the left side menu below the [Init Containers].

Is this what you are talking about? If yes, it is already added to the PR.

[T-Lakshmi]

@tamilselvan1102

Add [Sidecar containers] link from [whatsnext] in [Init Containers].

Updated, Thanks for remembering.

[sftim]

/sig node

[sftim]

Thanks. Here's some feedback.

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[T-Lakshmi]

/label tide/merge-method-squash

[sftim]

Relevant to #43610

[sftim]

LGTM for docs

@kubernetes/sig-node-pr-reviews does this look right, now?

[matthyx]

LGTM for docs

@kubernetes/sig-node-pr-reviews does this look right, now?

Let me have a look today...

[matthyx]

LGTM, however with 1.29 sidecars are going to beta and will be enabled by default.
@sftim do we want to already acknowledge that?

[sftim]

with 1.29 sidecars are going to beta and will be enabled by default.

I'll check with release docs. Personally, I think this is better merged than not.

[sftim]

/approve

/hold
See #43346 (comment)

[k8s-ci-robot]

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[katcosgrove]

I am fine with merging this into main as-is, then opening a PR against the dev-1.29 branch once I have frozen k/website.

/hold cancel

[sftim]

LGTM from #43346 (comment)

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: bd98d7ca54351db7ed66fa2617f182fa94176798

[sftim]

#44305 adapts that change for v1.29

[T-Lakshmi]

#44305 adapts that change for v1.29

@sftim,
Yes, I saw the PR and merge changes in the dev1.29 branch docs.
Meanwhile, as sidecars are moving to beta state, I believe we should remove the text below from sidecar containers page.

By default, this feature is not available in Kubernetes. To avail this feature, you need to enable the feature gate named SidecarContainers.

WDYT?

[sftim]

Does that text appear on the dev-1.29 branch? See https://deploy-preview-43082--kubernetes-io-vnext-staging.netlify.app/docs/ for the preview of that branch.

[T-Lakshmi]

Yes, It's there in dev-1.29 branch.
I could see this text at the end of the section in the preview page.

[sftim]

OK. Would you be willing to send in a PR to fix that bug? You can branch from main shortly after the release that is scheduled for later today.

[T-Lakshmi]

Sure, I will work on it.
Thanks.

[Adawntoremember]

fd224a1