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chore(deps): update mirror.gcr.io/library/ubuntu docker tag to v26 - autoclosed #14235

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chore(deps): update mirror.gcr.io/library/ubuntu docker tag to v26 - autoclosed #14235

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2 changes: 1 addition & 1 deletion .kokoro/docker/Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@

# 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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@gemini-code-assist gemini-code-assist Bot May 27, 2026

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high

Upgrading to ubuntu:26.04 is premature and will break the Docker build. Ubuntu 26.04 is not yet a stable LTS release. Additionally, upgrading the base image to this version introduces several compatibility issues:

  1. Python Compilation Failures: Older Python versions (such as 3.7, 3.8, and 3.9) specified in PYTHON_VERSIONS cannot be compiled on newer Ubuntu releases because they require OpenSSL 1.1.1, which is not available, and they are incompatible with newer glibc/gcc versions.
  2. Hardcoded Repository Paths: The Microsoft ODBC driver installation (line 103) explicitly uses the Ubuntu 20.04 repository (ubuntu/20.04/prod.list), which is incompatible with Ubuntu 26.04.
  3. Deprecated Tools: The use of apt-key (lines 74, 102, 253) is deprecated and may fail entirely on newer Ubuntu releases.

It is recommended to close this PR and remain on the stable ubuntu:24.04 LTS release.

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


ENV DEBIAN_FRONTEND noninteractive

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