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Update mirror.gcr.io/library/ubuntu Docker tag to v26 - autoclosed - #14580

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Update mirror.gcr.io/library/ubuntu Docker tag to v26 - autoclosed#14580
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renovate-bot:renovate/mirror.gcr.io-library-ubuntu-26.x

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This PR contains the following updates:

Package Type Update Change
mirror.gcr.io/library/ubuntu (source) final major 24.0426.04

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renovate-bot requested review from a team as code owners September 6, 2026 07:02
@trusted-contributions-gcf trusted-contributions-gcf Bot added kokoro:force-run Add this label to force Kokoro to re-run the tests. owlbot:run Add this label to trigger the Owlbot post processor. labels Sep 6, 2026
@product-auto-label product-auto-label Bot added the samples Issues that are directly related to samples. label Sep 6, 2026

@gemini-code-assist gemini-code-assist Bot left a comment

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Code Review

This pull request attempts to update the base Docker image from Ubuntu 24.04 to Ubuntu 26.04. However, since Ubuntu 26.04 is not yet released, this change will cause build failures because the tag does not exist and third-party packages are not yet supported. It is recommended to revert this change and keep the base image at Ubuntu 24.04.

Comment thread .kokoro/docker/Dockerfile
# We want to use LTS ubuntu from our mirror because dockerhub has a
# rate limit.
FROM mirror.gcr.io/library/ubuntu:24.04
FROM mirror.gcr.io/library/ubuntu:26.04

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high

Ubuntu 26.04 is not yet a released LTS version (scheduled for April 2026). Attempting to use ubuntu:26.04 will fail because the tag does not exist on mirror.gcr.io or Docker Hub. Additionally, many of the third-party repositories and packages installed later in this Dockerfile (such as Docker CE, Microsoft ODBC, and Chrome) do not yet have support or packages built for Ubuntu 26.04. Please keep the base image at ubuntu:24.04 until 26.04 is officially released and supported.

FROM mirror.gcr.io/library/ubuntu:24.04

@kokoro-team kokoro-team removed the kokoro:force-run Add this label to force Kokoro to re-run the tests. label Sep 6, 2026
@renovate-bot renovate-bot changed the title Update mirror.gcr.io/library/ubuntu Docker tag to v26 Update mirror.gcr.io/library/ubuntu Docker tag to v26 - autoclosed Sep 6, 2026
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renovate-bot deleted the renovate/mirror.gcr.io-library-ubuntu-26.x branch September 6, 2026 10:55
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