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"]