apache
    kafka
    4.1.2-rc1
Namespace
apache
Image / Tag
kafka:4.1.2-rc1
Content Digest
sha256:5cc2a2fd93fa2687b44015eee04fb2c3edd9e526bd64bf8bec5ff1e268772e0e
Details
Created

2026-02-25 10:18:52 UTC

Size

224 MB

Content Digest
Labels
  • maintainer
    Apache Kafka
  • org.label-schema.build-date
    2026-02-25
  • org.label-schema.description
    Apache Kafka
  • org.label-schema.name
    kafka
  • org.label-schema.vcs-url
    https://github.com/apache/kafka
Environment
JAVA_HOME

/opt/java/openjdk

JAVA_VERSION

jdk-21.0.10+7

LANG

en_US.UTF-8

LANGUAGE

en_US:en

LC_ALL

en_US.UTF-8

PATH

/opt/java/openjdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

Layers

[#000] sha256:589002ba0eaed121a1dbf42f6648f29e5be55d5c8a6ee0f8eaa0285cc21ac153 - 1.65% (3.68 MB)

[#001] sha256:71075870ab4982d45fa235ee69bf94cf05112736cabcd28cb26fe512a6cc2c15 - 7.17% (16.1 MB)

[#002] sha256:5df9c4c4dcbf56dc89e6ef5eb334bec79efa46ced3dd8fb4b4a2cb7d1985e1ab - 22.65% (50.7 MB)

[#003] sha256:1a7a516dcbb69b4973083542d2549433254cc064cec8da3251f7d889b69099e2 - 0.0% (128 Bytes)

[#004] sha256:3655cb26ed1af33f0fe5361c725d9b419f8f7e57bb595528b27cc387059adaa2 - 0.0% (2.23 KB)

[#005] sha256:d0d23dfb4b8a2ef818d4d3b22f2a4722639507d84c6cad8922116a769132152c - 59.19% (132 MB)

[#006] sha256:ce65cd59de6fbd87216ee4a3b4a8d30dc9e8fd9fa67af27bfe0c031ff2e586f0 - 0.0% (2.94 KB)

[#007] sha256:e0d69db66a163b3b3581a08d49833edfd2809dea8dfe66ce484d010d55faf9fc - 6.27% (14 MB)

[#008] sha256:d1e249c01bc66c6a63855bd01964e7a64587f8f6b83c4e581f2e1fa696074afa - 3.06% (6.86 MB)

[#009] sha256:78d4b6f4027002faec817991d294a8eb2a8607ac8286962611cd63a4e6b495a5 - 0.0% (2.23 KB)

[#010] sha256:0a4bb85ea367f89022df3b7ada4b1e08c9228087612ac5ab66adc750a79b3263 - 0.0% (1.54 KB)

History
2026-01-28 01:18:04 UTC (buildkit.dockerfile.v0)

ADD alpine-minirootfs-3.23.3-x86_64.tar.gz / # buildkit

2026-01-28 01:18:04 UTC (buildkit.dockerfile.v0)

CMD ["/bin/sh"]

2026-02-05 22:20:38 UTC (buildkit.dockerfile.v0)

ENV JAVA_HOME=/opt/java/openjdk

2026-02-05 22:20:38 UTC (buildkit.dockerfile.v0)

ENV PATH=/opt/java/openjdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

2026-02-05 22:20:38 UTC (buildkit.dockerfile.v0)

ENV LANG=en_US.UTF-8 LANGUAGE=en_US:en LC_ALL=en_US.UTF-8

2026-02-05 22:20:38 UTC (buildkit.dockerfile.v0)

RUN /bin/sh -c set -eux; apk add --no-cache fontconfig ttf-dejavu gnupg ca-certificates p11-kit-trust musl-locales musl-locales-lang tzdata coreutils openssl ; rm -rf /var/cache/apk/* # buildkit

2026-02-05 22:20:38 UTC (buildkit.dockerfile.v0)

ENV JAVA_VERSION=jdk-21.0.10+7

2026-02-05 22:20:41 UTC (buildkit.dockerfile.v0)

RUN /bin/sh -c set -eux; ARCH="$(apk --print-arch)"; case "${ARCH}" in aarch64) ESUM='d1cd7b33dcd81293b0b705f4d0e79adce092786be31736a63abe6a4b31841ae5'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.10%2B7/OpenJDK21U-jre_aarch64_alpine-linux_hotspot_21.0.10_7.tar.gz'; ;; x86_64) ESUM='4f6200277644afe6ad49218ae1dd45ab3d0d0b2ac4109163604e36156a93a306'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.10%2B7/OpenJDK21U-jre_x64_alpine-linux_hotspot_21.0.10_7.tar.gz'; ;; *) echo "Unsupported arch: ${ARCH}"; exit 1; ;; esac; wget -O /tmp/openjdk.tar.gz ${BINARY_URL}; wget -O /tmp/openjdk.tar.gz.sig ${BINARY_URL}.sig; export GNUPGHOME="$(mktemp -d)"; gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 3B04D753C9050D9A5D343F39843C48A565F8F04B; gpg --batch --verify /tmp/openjdk.tar.gz.sig /tmp/openjdk.tar.gz; rm -rf "${GNUPGHOME}" /tmp/openjdk.tar.gz.sig; echo "${ESUM} */tmp/openjdk.tar.gz" | sha256sum -c -; mkdir -p "$JAVA_HOME"; tar --extract --file /tmp/openjdk.tar.gz --directory "$JAVA_HOME" --strip-components 1 --no-same-owner ; rm -f /tmp/openjdk.tar.gz; # buildkit

2026-02-05 22:20:41 UTC (buildkit.dockerfile.v0)

RUN /bin/sh -c set -eux; echo "Verifying install ..."; echo "java --version"; java --version; echo "Complete." # buildkit

2026-02-05 22:20:41 UTC (buildkit.dockerfile.v0)

COPY --chmod=755 entrypoint.sh /__cacert_entrypoint.sh # buildkit

2026-02-05 22:20:41 UTC (buildkit.dockerfile.v0)

ENTRYPOINT ["/__cacert_entrypoint.sh"]

2026-02-25 10:18:24 UTC (buildkit.dockerfile.v0)

EXPOSE [9092/tcp]

2026-02-25 10:18:24 UTC (buildkit.dockerfile.v0)

USER root

2026-02-25 10:18:24 UTC (buildkit.dockerfile.v0)

ARG kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.1.2-rc1/kafka_2.13-4.1.2.tgz

2026-02-25 10:18:24 UTC (buildkit.dockerfile.v0)

ARG build_date=2026-02-25

2026-02-25 10:18:24 UTC (buildkit.dockerfile.v0)

LABEL org.label-schema.name=kafka org.label-schema.description=Apache Kafka org.label-schema.build-date=2026-02-25 org.label-schema.vcs-url=https://github.com/apache/kafka maintainer=Apache Kafka

2026-02-25 10:18:24 UTC (buildkit.dockerfile.v0)

RUN |2 kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.1.2-rc1/kafka_2.13-4.1.2.tgz build_date=2026-02-25 /bin/sh -c set -eux ; apk update ; apk upgrade ; apk add --no-cache wget gcompat gpg gpg-agent procps bash; mkdir opt/kafka; wget -nv -O kafka.tgz "$kafka_url"; wget -nv -O kafka.tgz.asc "$kafka_url.asc"; tar xfz kafka.tgz -C /opt/kafka --strip-components 1; wget -nv -O KEYS https://downloads.apache.org/kafka/KEYS; gpg --import KEYS; gpg --batch --verify kafka.tgz.asc kafka.tgz; mkdir -p /var/lib/kafka/data /etc/kafka/secrets; mkdir -p /etc/kafka/docker /usr/logs /mnt/shared/config; adduser -h /home/appuser -D --shell /bin/bash appuser; chown appuser:appuser -R /usr/logs /opt/kafka /mnt/shared/config; chown appuser:root -R /var/lib/kafka /etc/kafka/secrets /etc/kafka; chmod -R ug+w /etc/kafka /var/lib/kafka /etc/kafka/secrets; cp /opt/kafka/config/log4j2.yaml /etc/kafka/docker/log4j2.yaml; cp /opt/kafka/config/tools-log4j2.yaml /etc/kafka/docker/tools-log4j2.yaml; rm kafka.tgz kafka.tgz.asc KEYS; apk del wget gpg gpg-agent; apk cache clean; # buildkit

2026-02-25 10:18:24 UTC (buildkit.dockerfile.v0)

COPY server.properties /etc/kafka/docker/server.properties # buildkit

2026-02-25 10:18:52 UTC (buildkit.dockerfile.v0)

COPY kafka.jsa /opt/kafka/kafka.jsa # buildkit

2026-02-25 10:18:52 UTC (buildkit.dockerfile.v0)

COPY storage.jsa /opt/kafka/storage.jsa # buildkit

2026-02-25 10:18:52 UTC (buildkit.dockerfile.v0)

COPY --chown=appuser:appuser resources/common-scripts /etc/kafka/docker # buildkit

2026-02-25 10:18:52 UTC (buildkit.dockerfile.v0)

COPY --chown=appuser:appuser launch /etc/kafka/docker/launch # buildkit

2026-02-25 10:18:52 UTC (buildkit.dockerfile.v0)

USER appuser

2026-02-25 10:18:52 UTC (buildkit.dockerfile.v0)

VOLUME [/etc/kafka/secrets /var/lib/kafka/data /mnt/shared/config]

2026-02-25 10:18:52 UTC (buildkit.dockerfile.v0)

CMD ["/etc/kafka/docker/run"]

Details
Created

2026-02-25 10:21:39 UTC

Size

223 MB

Content Digest
Labels
  • maintainer
    Apache Kafka
  • org.label-schema.build-date
    2026-02-25
  • org.label-schema.description
    Apache Kafka
  • org.label-schema.name
    kafka
  • org.label-schema.vcs-url
    https://github.com/apache/kafka
Environment
JAVA_HOME

/opt/java/openjdk

JAVA_VERSION

jdk-21.0.10+7

LANG

en_US.UTF-8

LANGUAGE

en_US:en

LC_ALL

en_US.UTF-8

PATH

/opt/java/openjdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

Layers

[#000] sha256:d8ad8cd72600f46cc068e16c39046ebc76526e41051f43a8c249884b200936c0 - 1.79% (4 MB)

[#001] sha256:f8cc2c7c340c93eadc5aed360f377585a36ad528bf52340d27e5620178911dc3 - 7.17% (16 MB)

[#002] sha256:686fe3f1ba13e8b75a7049bb5b4866a2b9db942a2566f10361955135ca2f3e4b - 22.31% (49.8 MB)

[#003] sha256:5b42ee6ed221206f324d395a0db0301fa3e134f8125e55624740a107eb672d68 - 0.0% (128 Bytes)

[#004] sha256:53154b3835e8fe0b1b0d16ff265e4053982038ea66b24694bcc22097c58a7e7b - 0.0% (2.23 KB)

[#005] sha256:999b361f54e90ca0378399ac75d27ef4af34a6ad1781e75f8a4c2b305b39bf86 - 59.35% (133 MB)

[#006] sha256:0f3ae468bdf7bf360c94e11e6420233bec0567b18aa136dbade64d2c83c13c3d - 0.0% (2.94 KB)

[#007] sha256:97b39cabc8865326ea83be5db05841f354142990b7fdbf0df5c7e37ee083fd18 - 6.31% (14.1 MB)

[#008] sha256:13ac86db1a430de5c14aa84c9041ac752b16098751b1961fda13c78e6151d9ab - 3.06% (6.84 MB)

[#009] sha256:9891da45e2067b0ebaa7315d8fcd3f96f974ab514498ac63d724b98a42980805 - 0.0% (2.23 KB)

[#010] sha256:00164cecaf401f8970f9ca0c944dfcd51dfc312fb299e3a7bb23a7b3ca083791 - 0.0% (1.54 KB)

History
2026-01-28 01:18:09 UTC (buildkit.dockerfile.v0)

ADD alpine-minirootfs-3.23.3-aarch64.tar.gz / # buildkit

2026-01-28 01:18:09 UTC (buildkit.dockerfile.v0)

CMD ["/bin/sh"]

2026-02-05 22:19:38 UTC (buildkit.dockerfile.v0)

ENV JAVA_HOME=/opt/java/openjdk

2026-02-05 22:19:38 UTC (buildkit.dockerfile.v0)

ENV PATH=/opt/java/openjdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

2026-02-05 22:19:38 UTC (buildkit.dockerfile.v0)

ENV LANG=en_US.UTF-8 LANGUAGE=en_US:en LC_ALL=en_US.UTF-8

2026-02-05 22:19:38 UTC (buildkit.dockerfile.v0)

RUN /bin/sh -c set -eux; apk add --no-cache fontconfig ttf-dejavu gnupg ca-certificates p11-kit-trust musl-locales musl-locales-lang tzdata coreutils openssl ; rm -rf /var/cache/apk/* # buildkit

2026-02-05 22:19:38 UTC (buildkit.dockerfile.v0)

ENV JAVA_VERSION=jdk-21.0.10+7

2026-02-05 22:19:41 UTC (buildkit.dockerfile.v0)

RUN /bin/sh -c set -eux; ARCH="$(apk --print-arch)"; case "${ARCH}" in aarch64) ESUM='d1cd7b33dcd81293b0b705f4d0e79adce092786be31736a63abe6a4b31841ae5'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.10%2B7/OpenJDK21U-jre_aarch64_alpine-linux_hotspot_21.0.10_7.tar.gz'; ;; x86_64) ESUM='4f6200277644afe6ad49218ae1dd45ab3d0d0b2ac4109163604e36156a93a306'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.10%2B7/OpenJDK21U-jre_x64_alpine-linux_hotspot_21.0.10_7.tar.gz'; ;; *) echo "Unsupported arch: ${ARCH}"; exit 1; ;; esac; wget -O /tmp/openjdk.tar.gz ${BINARY_URL}; wget -O /tmp/openjdk.tar.gz.sig ${BINARY_URL}.sig; export GNUPGHOME="$(mktemp -d)"; gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 3B04D753C9050D9A5D343F39843C48A565F8F04B; gpg --batch --verify /tmp/openjdk.tar.gz.sig /tmp/openjdk.tar.gz; rm -rf "${GNUPGHOME}" /tmp/openjdk.tar.gz.sig; echo "${ESUM} */tmp/openjdk.tar.gz" | sha256sum -c -; mkdir -p "$JAVA_HOME"; tar --extract --file /tmp/openjdk.tar.gz --directory "$JAVA_HOME" --strip-components 1 --no-same-owner ; rm -f /tmp/openjdk.tar.gz; # buildkit

2026-02-05 22:19:41 UTC (buildkit.dockerfile.v0)

RUN /bin/sh -c set -eux; echo "Verifying install ..."; echo "java --version"; java --version; echo "Complete." # buildkit

2026-02-05 22:19:41 UTC (buildkit.dockerfile.v0)

COPY --chmod=755 entrypoint.sh /__cacert_entrypoint.sh # buildkit

2026-02-05 22:19:41 UTC (buildkit.dockerfile.v0)

ENTRYPOINT ["/__cacert_entrypoint.sh"]

2026-02-25 10:18:53 UTC (buildkit.dockerfile.v0)

EXPOSE [9092/tcp]

2026-02-25 10:18:53 UTC (buildkit.dockerfile.v0)

USER root

2026-02-25 10:18:53 UTC (buildkit.dockerfile.v0)

ARG kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.1.2-rc1/kafka_2.13-4.1.2.tgz

2026-02-25 10:18:53 UTC (buildkit.dockerfile.v0)

ARG build_date=2026-02-25

2026-02-25 10:18:53 UTC (buildkit.dockerfile.v0)

LABEL org.label-schema.name=kafka org.label-schema.description=Apache Kafka org.label-schema.build-date=2026-02-25 org.label-schema.vcs-url=https://github.com/apache/kafka maintainer=Apache Kafka

2026-02-25 10:18:53 UTC (buildkit.dockerfile.v0)

RUN |2 kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.1.2-rc1/kafka_2.13-4.1.2.tgz build_date=2026-02-25 /bin/sh -c set -eux ; apk update ; apk upgrade ; apk add --no-cache wget gcompat gpg gpg-agent procps bash; mkdir opt/kafka; wget -nv -O kafka.tgz "$kafka_url"; wget -nv -O kafka.tgz.asc "$kafka_url.asc"; tar xfz kafka.tgz -C /opt/kafka --strip-components 1; wget -nv -O KEYS https://downloads.apache.org/kafka/KEYS; gpg --import KEYS; gpg --batch --verify kafka.tgz.asc kafka.tgz; mkdir -p /var/lib/kafka/data /etc/kafka/secrets; mkdir -p /etc/kafka/docker /usr/logs /mnt/shared/config; adduser -h /home/appuser -D --shell /bin/bash appuser; chown appuser:appuser -R /usr/logs /opt/kafka /mnt/shared/config; chown appuser:root -R /var/lib/kafka /etc/kafka/secrets /etc/kafka; chmod -R ug+w /etc/kafka /var/lib/kafka /etc/kafka/secrets; cp /opt/kafka/config/log4j2.yaml /etc/kafka/docker/log4j2.yaml; cp /opt/kafka/config/tools-log4j2.yaml /etc/kafka/docker/tools-log4j2.yaml; rm kafka.tgz kafka.tgz.asc KEYS; apk del wget gpg gpg-agent; apk cache clean; # buildkit

2026-02-25 10:18:53 UTC (buildkit.dockerfile.v0)

COPY server.properties /etc/kafka/docker/server.properties # buildkit

2026-02-25 10:21:39 UTC (buildkit.dockerfile.v0)

COPY kafka.jsa /opt/kafka/kafka.jsa # buildkit

2026-02-25 10:21:39 UTC (buildkit.dockerfile.v0)

COPY storage.jsa /opt/kafka/storage.jsa # buildkit

2026-02-25 10:21:39 UTC (buildkit.dockerfile.v0)

COPY --chown=appuser:appuser resources/common-scripts /etc/kafka/docker # buildkit

2026-02-25 10:21:39 UTC (buildkit.dockerfile.v0)

COPY --chown=appuser:appuser launch /etc/kafka/docker/launch # buildkit

2026-02-25 10:21:39 UTC (buildkit.dockerfile.v0)

USER appuser

2026-02-25 10:21:39 UTC (buildkit.dockerfile.v0)

VOLUME [/etc/kafka/secrets /var/lib/kafka/data /mnt/shared/config]

2026-02-25 10:21:39 UTC (buildkit.dockerfile.v0)

CMD ["/etc/kafka/docker/run"]

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Please be careful as this will not just delete the reference but also the actual content!

For example when you have latest and v1.2.3 both pointing to the same image
the deletion of latest will also permanently remove v1.2.3.

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