Add ipv6 support overview by axel7born · Pull Request #1020 · gardener/documentation

axel7born · 2026-07-06T13:41:12Z

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coderabbitai · 2026-07-06T13:41:22Z

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hugo/content/docs/guides/networking/ipv6-support-overview.md

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netlify · 2026-07-06T13:45:08Z

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axel7born · 2026-07-09T08:52:01Z

@kevin-lacoo Could you have a look at the alicloud section, please?

DockToFuture

/lgtm

gardener-prow · 2026-07-09T09:08:16Z

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BoHristova

Thank you for the great overview!

I've suggested fixes for some of the links, as the current ones will break when the website is deployed. For pages that are pulled into the website via Docforge, we need to use GitHub links (see the Formatting Guide). The Netlify deploy preview is quite useful if you want to check whether the links work as expected.

axel7born · 2026-07-09T11:09:04Z

@BoHristova Thanks for your review!
I applied the suggestions.

BoHristova · 2026-07-09T11:22:24Z

@axel7born Thanks for applying the suggestions so quickly!

I'll wait for @kevin-lacoo's review before approving the PR.

/lgtm

gardener-prow · 2026-07-09T11:22:31Z

LGTM label has been added.

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Git tree hash: 35f2e51e8671bc7d47554900e9fdedc44d3d37e2

BoHristova · 2026-07-22T13:54:18Z

Hi @kevin-lacoo, could you please take a look at this PR (see previous comment)? Thank you :)

kevin-lacoo · 2026-07-23T01:29:05Z

+
+### Migration
+
+Add `dualStack.enabled: true` to `InfrastructureConfig` and add `IPv6` to `spec.networking.ipFamilies`. The infrastructure will be reconciled to enable IPv6 on the VPC and assign `/64` CIDRs to each zone's VSwitch.


Suggested change

Add `dualStack.enabled: true` to `InfrastructureConfig` and add `IPv6` to `spec.networking.ipFamilies`. The infrastructure will be reconciled to enable IPv6 on the VPC and assign `/64` CIDRs to each zone's VSwitch.

Add `dualStack.enabled: true` to `InfrastructureConfig`. The infrastructure will be reconciled to enable IPv6 on the VPC and assign `/64` CIDRs to each zone's VSwitch.

kevin-lacoo · 2026-07-23T01:54:01Z

+metadata:
+  annotations:
+    service.beta.kubernetes.io/alibaba-cloud-loadbalancer-ip-version: "DualStack"
+    service.beta.kubernetes.io/alibaba-cloud-loadbalancer-zone-maps: "<zone-a>:<vswitch-id-a>,<zone-b>:<vswitch-id-b>"


By default, the IPv6 addresses of Dual-Stack services created by Alibaba Cloud CCM only support internal access. To enable external Internet access via IPv6, add the following annotation to your Service manifest: service.beta.kubernetes.io/alibaba-cloud-loadbalancer-ipv6-address-type: internet

kevin-lacoo · 2026-07-23T02:01:14Z

Hi @kevin-lacoo, could you please take a look at this PR (see previous comment)? Thank you :)

Sorry for later reply, I've given some comments above, thanks.

from gcp requierments

Co-authored-by: Bozhidara Hristova <121290012+BoHristova@users.noreply.github.com>

Signed-off-by: Bozhidara Hristova <bozhidara.hristova@sap.com>

BoHristova · 2026-08-07T14:43:53Z

Hi @axel7born, @kevin-lacoo. I'm sorry that it took so long to apply the suggestions. I also moved the file to the new content directory (there was a content migration from website/ to hugo/content/ recently).

When you have the time, could you take a quick look? If everything looks good, we can finally merge it :)

kevin-lacoo · 2026-08-10T02:34:02Z

/lgtm

gardener-prow · 2026-08-10T02:34:08Z

@kevin-lacoo: adding LGTM is restricted to approvers and reviewers in OWNERS files.

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/lgtm

gardener-prow · 2026-08-10T08:36:27Z

[APPROVALNOTIFIER] This PR is APPROVED

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gardener-prow · 2026-08-10T08:36:28Z

LGTM label has been added.

Details

Git tree hash: 9459b3f221f4bd23091b324f3a8d7c40f06d55b8

axel7born requested a review from a team as a code owner July 6, 2026 13:41

gardener-prow Bot added the kind/enhancement Enhancement, improvement, extension label Jul 6, 2026

gardener-prow Bot added cla: yes Indicates the PR's author has signed the cla-assistant.io CLA. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Jul 6, 2026

DockToFuture reviewed Jul 9, 2026

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Comment thread website/documentation/guides/networking/ipv6-support-overview.md Outdated

DockToFuture previously approved these changes Jul 9, 2026

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BoHristova requested changes Jul 9, 2026

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axel7born dismissed DockToFuture’s stale review via 394ab52 July 9, 2026 11:07

gardener-prow Bot added the lgtm Indicates that a PR is ready to be merged. label Jul 9, 2026

kevin-lacoo reviewed Jul 23, 2026

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axel7born and others added 5 commits August 7, 2026 16:58

add ipv6 support overview

d43f898

Remove confusing implementation detail

3b99024

from gcp requierments

Apply suggestions from code review

1856366

Co-authored-by: Bozhidara Hristova <121290012+BoHristova@users.noreply.github.com>

Move file to hugo/content/ and mark as local

7af731b

Signed-off-by: Bozhidara Hristova <bozhidara.hristova@sap.com>

Apply reviewer suggestions for Alibaba section

e571bbc

Signed-off-by: Bozhidara Hristova <bozhidara.hristova@sap.com>

BoHristova force-pushed the enh/add-ipv6-overview branch from 394ab52 to e571bbc Compare August 7, 2026 14:39

gardener-prow Bot removed the lgtm Indicates that a PR is ready to be merged. label Aug 7, 2026

BoHristova approved these changes Aug 10, 2026

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gardener-prow Bot added the lgtm Indicates that a PR is ready to be merged. label Aug 10, 2026

gardener-prow Bot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Aug 10, 2026

gardener-prow Bot merged commit 81d9f4e into gardener:master Aug 10, 2026
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		### Migration

		Add `dualStack.enabled: true` to `InfrastructureConfig` and add `IPv6` to `spec.networking.ipFamilies`. The infrastructure will be reconciled to enable IPv6 on the VPC and assign `/64` CIDRs to each zone's VSwitch.

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