SUSE-RU-2025:03131-1: moderate: Recommended update for docker

[SLE-UPDATES]

# Recommended update for docker

Announcement ID: SUSE-RU-2025:03131-1  
Release Date: 2025-09-10T11:46:29Z  
Rating: moderate  
References:

  * bsc#1247594
  * jsc#PED-12534
  * jsc#PED-8905

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that contains two features and has one fix can now be installed.

## Description:

This update for docker fixes the following issues:

Update to docker-buildx v0.28.0.

See upstream changelog: <https://github.com/docker/buildx/releases/tag/v0.28.0>

Update to Docker 28.4.0-ce:

See upstream changelog: <https://docs.docker.com/engine/release-notes/28/#2840>

  * Update warnings and errors related to "docker buildx ..." so that they
    reference our openSUSE docker-buildx packages.

  * Enable building docker-buildx for SLE15 systems with SUSEConnect secret
    injection enabled. PED-12534 PED-8905 bsc#1247594

As docker-buildx does not support our SUSEConnect secret injection (and some
users depend "docker build" working transparently), patch the docker CLI so that
"docker build" will no longer automatically call "docker buildx build",
effectively making DOCKER_BUILDKIT=0 the default configuration. Users can
manually use "docker buildx ..." commands or set DOCKER_BUILDKIT=1 in order to
opt-in to using docker-buildx.

Users can silence the "docker build" warning by setting DOCKER_BUILDKIT=0
explicitly.

In order to inject SCC credentials with docker-buildx, users should use

    
    
    RUN --mount=type=secret,id=SCCcredentials zypper -n ...
    

in their Dockerfiles, and

    
    
    docker buildx build --secret id=SCCcredentials,src=/etc/zypp/credentials.d/SCCcredentials,type=file .
    

when doing their builds.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2025-3131=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-3131=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * docker-debuginfo-28.4.0_ce-98.140.1
    * docker-28.4.0_ce-98.140.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
    * docker-bash-completion-28.4.0_ce-98.140.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * docker-debuginfo-28.4.0_ce-98.140.1
    * docker-28.4.0_ce-98.140.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * docker-bash-completion-28.4.0_ce-98.140.1

## References:

  * https://bugzilla.suse.com/show_bug.cgi?id=1247594
  * https://jira.suse.com/browse/PED-12534
  * https://jira.suse.com/browse/PED-8905

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