Upgrade Ubuntu helix queues from 22.04 VMs to containers by richlander · Pull Request #125535 · dotnet/runtime

richlander · 2026-03-13T20:40:13Z

Replace bare Ubuntu 22.04 VM helix queue references with container equivalents hosted on AzureLinux 3, in preparation for Ubuntu 26.04 launch.

In service of: #125748

Changes

eng/pipelines/libraries/helix-queues-setup.yml

Mono path and general CoreCLR set: Ubuntu.2204.Amd64.Open VM → ubuntu-26.04-helix-amd64 container
Remove redundant 26.04 entry from extra-platforms (promoted to general set)

eng/pipelines/helix-platforms.yml

helix_linux_x64_oldest / _internal: bare 22.04 VM → ubuntu-22.04-helix-amd64 container on AzureLinux
helix_linux_x64_ubuntu_oldest: bare 22.04 VM → ubuntu-22.04-helix-amd64 container on AzureLinux
helix_linux_arm64_oldest: bare 22.04 ARM VM → ubuntu-22.04-helix-arm64v8 container on AzureLinux

Not changed (intentionally)

Android queues (Ubuntu.2204.Amd64.Android.*)
WASM/WASI container references
ARM container host VMs
Build pool demands

Replace bare Ubuntu 22.04 VM helix queue references with container equivalents hosted on AzureLinux 3: - libraries helix-queues-setup: Mono and general CoreCLR sets move from Ubuntu.2204.Amd64.Open VM to ubuntu-26.04-helix-amd64 container. Remove redundant 26.04 entry from extra-platforms (now in general set). - helix-platforms: Oldest Ubuntu x64, Ubuntu x64 ubuntu-specific, and ARM64 variables move from bare 22.04 VMs to 22.04 containers on AzureLinux hosts. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

dotnet-policy-service · 2026-03-13T20:41:27Z

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Copilot

Pull request overview

Updates Helix queue mappings for Linux “oldest” coverage by replacing Ubuntu 22.04 VM queues with container-based equivalents hosted on AzureLinux 3, and updates libraries’ default Linux x64 queue selection to use the Ubuntu 26.04 container.

Changes:

Libraries Helix queue setup: switch Mono and general CoreCLR Linux x64 from Ubuntu 22.04 VM to Ubuntu 26.04 container; remove Ubuntu 26.04 from the extra-platforms list.
Helix platform aliases: switch “oldest” Ubuntu 22.04 x64 (public/internal), Ubuntu 22.04 x64 (Ubuntu-oldest alias), and Ubuntu 22.04 ARM64 oldest from VM queues to AzureLinux-hosted container queues.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
eng/pipelines/libraries/helix-queues-setup.yml	Updates the Linux x64 default queue selection to use Ubuntu 26.04 container-based queues and adjusts extra-platforms membership.
eng/pipelines/helix-platforms.yml	Repoints “oldest” Ubuntu aliases to AzureLinux-hosted Ubuntu containers for x64 and arm64.

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richlander · 2026-03-13T20:46:55Z

Preparing for 26.04 LTS. Assume a month from now. We want to offer same day support.

In addition, we're going to start a push on VMs, shortly. 22.04 -> 26.04. I've been waiting for 26.04 to launch to do that. We skipped 24.04 because we were focused on Azure Linux 3 VMs at that time.

@agocke

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Copilot

Pull request overview

Updates Helix queue configuration to replace Ubuntu 22.04 VM queue references with AzureLinux 3 hosted container queues, and to move libraries’ general/mono Linux x64 coverage to the Ubuntu 26.04 container queue in preparation for Ubuntu 26.04 rollout.

Changes:

Switch libraries Linux x64 Mono path and general CoreCLR set from Ubuntu.2204.Amd64.Open VM to the Ubuntu 26.04 container queue hosted on AzureLinux 3.
Update “oldest” Linux platform aliases (x64 and arm64) from Ubuntu 22.04 VM queues to Ubuntu 22.04 container queues hosted on AzureLinux 3.
Remove redundant Ubuntu 26.04 entry from the libraries extra-platforms CoreCLR inner-loop list (now covered by the general set).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
eng/pipelines/libraries/helix-queues-setup.yml	Moves libraries Linux x64 queue selection to Ubuntu 26.04 container (AzureLinux 3 host) and simplifies extra-platforms list.
eng/pipelines/helix-platforms.yml	Updates “oldest” Linux x64 and arm64 variables to use Ubuntu 22.04 container queues on AzureLinux 3 instead of Ubuntu 22.04 VM queues.

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richlander · 2026-03-18T21:35:34Z

This looks clean. PTAL.

Clean run: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1340091&view=logs&jobId=b04f8d62-12b9-5ca9-905d-ab402cb4d343&j=bc8f69e2-91b3-518c-84f8-466a04c1af40&t=1f35e385-857b-5625-d63e-6db44c53ace5&s=ff05ad62-bb9a-53b6-ce9f-72f329a63e7c

@agocke @hoyosjs

richlander · 2026-03-18T23:13:44Z

/ba-g "Unrelated failures"

Copilot

Pull request overview

Updates Helix queue aliases and queue selection logic to move Ubuntu-based Linux test execution off Ubuntu 22.04 VM queues and onto container-based queues hosted on AzureLinux 3, aligning the pipelines with upcoming Ubuntu 26.04 usage.

Changes:

Switch Libraries Helix queue selection for Linux x64 (Mono minimal + CoreCLR general set) from Ubuntu 22.04 VM to Ubuntu 26.04 container queues (AzureLinux 3 host).
Remove Ubuntu 26.04 from the Libraries “extra-platforms” CoreCLR inner-loop queue set (leaving Debian/Fedora/openSUSE container queues).
Update Helix platform alias variables for “oldest Ubuntu” Linux x64/arm64 from bare Ubuntu 22.04 VM queues to Ubuntu 22.04 container queues on AzureLinux 3.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
`eng/pipelines/libraries/helix-queues-setup.yml`	Updates Linux x64 queue selection to use Ubuntu 26.04 container queues and adjusts the extra-platforms set accordingly.
`eng/pipelines/helix-platforms.yml`	Updates “oldest Ubuntu 22.04” platform aliases to point at Ubuntu 22.04 container queues hosted on AzureLinux 3.

richlander · 2026-03-21T00:02:42Z

Waiting on: #125877

…125997) > [!NOTE] > This PR was AI/Copilot-generated. Replace bare Ubuntu 22.04 VM Helix queue references with Ubuntu 26.04 container equivalents hosted on AzureLinux 3. - Mono path: `Ubuntu.2204.Amd64.Open` VM → `ubuntu-26.04-helix-amd64` container - CoreCLR general set: `Ubuntu.2204.Amd64.Open` VM → `ubuntu-26.04-helix-amd64` container (promoted from extra-platforms) - Remove redundant 26.04 entry from extra-platforms - Fix `AzureLinux.3.Amd64.open` → `AzureLinux.3.Amd64.Open` casing on Fedora, openSUSE, and AzureLinux host VM names Not changed (intentionally): - Android queues (`Ubuntu.2204.Amd64.Android.*`) - WASM/WASI container references - ARM container host VMs Backport of #125535. Ref #125748, #125690 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

…125995) > [!NOTE] > This PR was AI/Copilot-generated. Update enterprise and stress test build pool images from Ubuntu 22.04 to Azure Linux 3: - `enterprise/linux.yml` - `stress/http.yml` - `stress/ssl.yml` `Build.Ubuntu.2204.Amd64.Open` → `build.azurelinux.3.amd64.open` These were missed in #125535. Companion release/10.0 PR to follow. Ref #125748, #125690 --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

CopilotAI review requested due to automatic review settings March 13, 2026 20:40

github-actionsBot added the area-Infrastructure label Mar 13, 2026

github-project-automationBot added this to Runtime Infra Mar 13, 2026

dotnet-policy-serviceBot assigned richlander Mar 13, 2026

Copilotstarted reviewing on behalf of richlander March 13, 2026 20:42 View session

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Comment threadeng/pipelines/libraries/helix-queues-setup.yml Outdated
Comment threadeng/pipelines/libraries/helix-queues-setup.yml

Potential fix for pull request finding
ae356db
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

CopilotAI review requested due to automatic review settings March 13, 2026 20:48

Copilotstarted reviewing on behalf of richlander March 13, 2026 20:50 View session

CopilotAI reviewed Mar 13, 2026
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Merge branch 'main' into upgrade-ubuntu-helix-queues-2604
6a0686f

hoyosjs reviewed Mar 18, 2026
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Comment threadeng/pipelines/helix-platforms.yml

build-analysisBot mentioned this pull request Mar 19, 2026
wasm build failure in CI #117017
Closed

hoyosjs approved these changes Mar 19, 2026
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richlander enabled auto-merge (squash) March 19, 2026 00:45

richlander disabled auto-merge March 19, 2026 00:45

Merge branch 'main' into upgrade-ubuntu-helix-queues-2604
2044af4

CopilotAI review requested due to automatic review settings March 19, 2026 22:44

Copilotstarted reviewing on behalf of richlander March 19, 2026 22:45 View session

CopilotAI reviewed Mar 19, 2026
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Merge branch 'main' into upgrade-ubuntu-helix-queues-2604
c29289a

hoyosjs merged commit df18262 into mainMar 21, 2026
167 checks passed

hoyosjs deleted the upgrade-ubuntu-helix-queues-2604 branch March 21, 2026 12:04

github-project-automationBot moved this to Done in Runtime Infra Mar 21, 2026

dotnet-maestroBot mentioned this pull request Mar 22, 2026
[main] Source code updates from dotnet/runtime dotnet/dotnet#5588
Merged

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Upgrade Ubuntu helix queues from 22.04 VMs to containers - #125535

Upgrade Ubuntu helix queues from 22.04 VMs to containers#125535
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