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Update mirror.gcr.io/library/ubuntu Docker tag to v26 - autoclosed - #14582

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Update mirror.gcr.io/library/ubuntu Docker tag to v26 - autoclosed#14582
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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 7, 2026 03:52
@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 7, 2026
@product-auto-label product-auto-label Bot added the samples Issues that are directly related to samples. label Sep 7, 2026

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

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Code Review

This pull request updates the base Docker image in the Dockerfile from Ubuntu 24.04 to Ubuntu 26.04. However, feedback indicates that this upgrade will break the Docker build because several third-party repositories configured in the Dockerfile do not yet support Ubuntu 26.04. It is recommended to revert this change and stick to 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

Upgrading to Ubuntu 26.04 will break the Docker build. Several third-party repositories configured in this Dockerfile (such as Docker CE, Microsoft MSSQL, and Google Chrome) do not yet have packages or stable releases for Ubuntu 26.04, which will cause apt-get update or package installation to fail. It is recommended to stick to the stable LTS version (Ubuntu 24.04).

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 7, 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 7, 2026
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renovate-bot deleted the renovate/mirror.gcr.io-library-ubuntu-26.x branch September 7, 2026 17:05
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