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CI: add Ubuntu 26.04 support and coverage - #13443

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yankay wants to merge 2 commits into
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yankay:feat/ubuntu-2604-image
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CI: add Ubuntu 26.04 support and coverage#13443
yankay wants to merge 2 commits into
kubernetes-sigs:masterfrom
yankay:feat/ubuntu-2604-image

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@yankay

@yankay yankay commented Aug 31, 2026

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What type of PR is this?

/kind feature

What this PR does / why we need it:

Add Ubuntu 26.04 (Resolute) support and representative CI coverage.

  • Add the Ubuntu 26.04 KubeVirt image definition
  • Add ubuntu26-calico-all-in-one to the PR matrix
  • Add Ubuntu 26.04 node-specific variables
  • Update the supported OS and CI coverage documentation
  • Publish quay.io/kubespray/vm-ubuntu-2604

Net change: +1 CI job.

Which issue(s) this PR fixes:

Fixes #13440

Special notes for your reviewer:

References: #11132 and #11167.

This PR was written in part with the assistance of generative AI.

Does this PR introduce a user-facing change?:

Add Ubuntu 26.04 support.

yankay added 2 commits August 31, 2026 23:16
Signed-off-by: Kay Yan <kay.yan@daocloud.io>
Add an Ubuntu 26.04 CI job (ubuntu26-calico-all-in-one) to the main PR
matrix, OS-specific node vars, and update the coverage docs.

The VM image is published as quay.io/kubespray/vm-ubuntu-2604.

Signed-off-by: Kay Yan <kay.yan@daocloud.io>
Copilot AI lite review requested due to automatic review settings August 31, 2026 15:55
@kubernetes-prow kubernetes-prow Bot added release-note Denotes a PR that will be considered when it comes time to generate release notes. kind/feature Categorizes issue or PR as related to a new feature. labels Aug 31, 2026
@kubernetes-prow
kubernetes-prow Bot requested review from ant31 and tico88612 August 31, 2026 15:55
@kubernetes-prow kubernetes-prow Bot added size/M Denotes a PR that changes 30-99 lines, ignoring generated files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. labels Aug 31, 2026
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: yankay

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@kubernetes-prow kubernetes-prow Bot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Aug 31, 2026
@yankay

yankay commented Aug 31, 2026

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/label ci-full

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Pull request overview

Adds Ubuntu 26.04 (Resolute) coverage to Kubespray’s kubevirt-based CI by introducing a new PR-matrix testcase, wiring it into the GitLab CI matrix, and updating the image-builder and documentation to recognize Ubuntu 26.04.

Changes:

  • Add a new kubevirt testcase ubuntu26-calico-all-in-one and include it in the PR CI matrix.
  • Add Ubuntu 26.04 cloud image metadata to the kubevirt image-builder defaults.
  • Add Ubuntu 26 node vars plus documentation updates (CI coverage matrix + supported OS list).

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file
File Description
tests/files/ubuntu26-calico-all-in-one.yml New kubevirt CI testcase config for Ubuntu 26.04 (calico all-in-one).
test-infra/image-builder/roles/kubevirt-images/defaults/main.yml Adds ubuntu-2604 image source URL/checksum for image building.
roles/kubernetes/node/vars/ubuntu-26.yml Adds Ubuntu 26 OS var override for kube_resolv_conf.
README.md Lists Ubuntu 26.04 as a supported distribution.
docs/developers/ci.md Updates CI coverage tables to include ubuntu26.
.gitlab-ci/kubevirt.yml Adds ubuntu26-calico-all-in-one to the PR job matrix.

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# Kubespray settings
auto_renew_certificates: true

# Currently ipvs not available on KVM: https://packages.ubuntu.com/search?suite=noble&arch=amd64&mode=exactfilename&searchon=contents&keywords=ip_vs_sh.ko
Copilot AI review requested due to automatic review settings August 31, 2026 15:57

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Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated no new comments.

Suppressed comments (1)

tests/files/ubuntu26-calico-all-in-one.yml:10

  • The comment link references the Ubuntu 24.04 (noble) package suite, but this testcase is for Ubuntu 26.04 (resolute). This makes the rationale/link misleading when diagnosing IPVS availability for 26.04 CI runs.
# Currently ipvs not available on KVM: https://packages.ubuntu.com/search?suite=noble&arch=amd64&mode=exactfilename&searchon=contents&keywords=ip_vs_sh.ko

Copilot AI review requested due to automatic review settings August 31, 2026 16:04
@yankay
yankay force-pushed the feat/ubuntu-2604-image branch from 7f4b6df to bd69d12 Compare August 31, 2026 16:04
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@yankay: The following test 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-kubespray-kubevirt-image-builder-validate bd69d12 link true /test pull-kubespray-kubevirt-image-builder-validate

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.

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Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated no new comments.

Suppressed comments (1)

tests/files/ubuntu26-calico-all-in-one.yml:10

  • The package-search link in this comment still points to the Ubuntu 24.04 (noble) suite, but this testcase targets Ubuntu 26.04. This makes the reference misleading when troubleshooting ipvs availability on 26.04.
# Currently ipvs not available on KVM: https://packages.ubuntu.com/search?suite=noble&arch=amd64&mode=exactfilename&searchon=contents&keywords=ip_vs_sh.ko

@yankay yankay changed the title CI: add Ubuntu 26.04 support CI: add Ubuntu 26.04 support and coverage Aug 31, 2026
@yankay

yankay commented Sep 1, 2026

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pending #13445

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Add support for Ubuntu 26.04 LTS

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