apache
    kafka
    4.2.0-rc3
Namespace
apache
Image / Tag
kafka:4.2.0-rc3
Content Digest
sha256:c99787c0641eb287a9e0bf0f0e386f8ac2c99f87f5ac00bb3ba69dfc65139b9f
Details
Created

2026-02-02 13:30:10 UTC

Size

224 MB

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

/opt/java/openjdk

JAVA_VERSION

jdk-21.0.9+10

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:d49a2dee86fb12766dd648402d010ca105846a41bd58738454e53780d4bb8e97 - 1.62% (3.63 MB)

[#001] sha256:9a95a7405177abd55077356ffb7a848c87d9ca9c23db8124d028a03a08abbd43 - 6.94% (15.5 MB)

[#002] sha256:d692f84685999cf52a16deb2a62f05a72b23b165370268bb9f84bf2720cbf86f - 22.63% (50.7 MB)

[#003] sha256:dbea5914daf9376671fa3a740cdc4cf83f54bc69c4802edc5123a3224fb2878d - 0.0% (128 Bytes)

[#004] sha256:a9a0e1e7665e6e529029146a70d0814061dd236331e5b77b0c739c34fd466769 - 0.0% (2.23 KB)

[#005] sha256:4f4fb700ef54461cfa02571ae0db9a0dc1e0cdb5577484a6d75e68dc38e8acc1 - 0.0% (32 Bytes)

[#006] sha256:913f1310e3e6e72916d0068fcdbfb0793a467cb2f916e6aa1fe7158abf635d75 - 59.49% (133 MB)

[#007] sha256:7c79dc0c850ffc5d4970bab1a83c57895f67a0df2c369a4e26305830355c753d - 0.0% (2.93 KB)

[#008] sha256:8c046ca64842e0c7bd8e62d6f79c0712737a80ad5530e25e5a16036ced9ffd75 - 6.26% (14 MB)

[#009] sha256:140dcf708c29f0ce4f515cc3c6e5a6a4383c0da6b8b5dca3b8632b17f444a198 - 3.05% (6.84 MB)

[#010] sha256:eb183e4229c91e17f751cf37fd06d06af9c60b1ed34480d4e5701ec9af327418 - 0.0% (2.22 KB)

[#011] sha256:4c8f1eeaf780fb08aeb189f4a802e062a34c8f40d91d6c4512834c525596c94a - 0.0% (1.54 KB)

History
2026-01-28 01:18:40 UTC (buildkit.dockerfile.v0)

ADD alpine-minirootfs-3.22.3-x86_64.tar.gz / # buildkit

2026-01-28 01:18:40 UTC (buildkit.dockerfile.v0)

CMD ["/bin/sh"]

2026-01-28 03:03:00 UTC (buildkit.dockerfile.v0)

ENV JAVA_HOME=/opt/java/openjdk

2026-01-28 03:03:00 UTC (buildkit.dockerfile.v0)

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

2026-01-28 03:03:00 UTC (buildkit.dockerfile.v0)

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

2026-01-28 03:03:00 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

2026-01-28 03:03:00 UTC (buildkit.dockerfile.v0)

ENV JAVA_VERSION=jdk-21.0.9+10

2026-01-28 03:12:33 UTC (buildkit.dockerfile.v0)

RUN /bin/sh -c set -eux; ARCH="$(apk --print-arch)"; case "${ARCH}" in aarch64) ESUM='7f8c230ba505b418e4288e2b34758a6e4da32470944740e5ba0cfaae02271c22'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.9%2B10/OpenJDK21U-jre_aarch64_alpine-linux_hotspot_21.0.9_10.tar.gz'; ;; x86_64) ESUM='17aca4ecc1600f70ec88ea0f8bf3a06ba6806bdae8c96d03c07683c800f0d4e8'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.9%2B10/OpenJDK21U-jre_x64_alpine-linux_hotspot_21.0.9_10.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

2026-01-28 03:12:33 UTC (buildkit.dockerfile.v0)

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

2026-01-28 03:12:33 UTC (buildkit.dockerfile.v0)

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

2026-01-28 03:12:33 UTC (buildkit.dockerfile.v0)

ENTRYPOINT ["/__cacert_entrypoint.sh"]

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

EXPOSE [9092/tcp]

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

USER root

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

ARG kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.2.0-rc3/kafka_2.13-4.2.0.tgz

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

ARG build_date=2026-02-02

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

COPY *kafka.tgz kafka.tgz # buildkit

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:29:43 UTC (buildkit.dockerfile.v0)

RUN |2 kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.2.0-rc3/kafka_2.13-4.2.0.tgz build_date=2026-02-02 /bin/sh -c mkdir opt/kafka; set -eux ; apk update ; apk upgrade ; apk add --no-cache bash; if [ -n "$kafka_url" ]; then apk add --no-cache wget gcompat gpg gpg-agent procps; wget -nv -O kafka.tgz "$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; rm kafka.tgz kafka.tgz.asc KEYS; apk del wget gpg gpg-agent; else tar xfz kafka.tgz -C /opt/kafka --strip-components 1; rm kafka.tgz; fi; 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; apk cache clean; # buildkit

2026-02-02 13:29:43 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:30:10 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:30:10 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:30:10 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:30:10 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:30:10 UTC (buildkit.dockerfile.v0)

USER appuser

2026-02-02 13:30:10 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:30:10 UTC (buildkit.dockerfile.v0)

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

Details
Created

2026-02-02 13:32:52 UTC

Size

224 MB

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

/opt/java/openjdk

JAVA_VERSION

jdk-21.0.9+10

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:d741ee1608f399e21c72d05f0f818c348c6801af33aeb83523893d09dc153957 - 1.77% (3.95 MB)

[#001] sha256:6c24115e8411f4d7573c11f391a90280e4d56095cc395d3092b6a130688b6a8d - 6.94% (15.5 MB)

[#002] sha256:2b67ace64d831b85fef838eaaa1fe4f670492e335b3c224aa1dc424897a2fab4 - 22.28% (49.8 MB)

[#003] sha256:d03eb363046abe0e3136c465d80392d4c599e6ab1b8c7986e57a303bb02e8a89 - 0.0% (128 Bytes)

[#004] sha256:d4f79a9f2e9a637bcd3b3896f8afa7f5cda80ce104d3d9eef9cb9475b6d9ba06 - 0.0% (2.23 KB)

[#005] sha256:4f4fb700ef54461cfa02571ae0db9a0dc1e0cdb5577484a6d75e68dc38e8acc1 - 0.0% (32 Bytes)

[#006] sha256:db80f3d453fdabe35b2b0ca08197c2cccf93628cae9f309b2b6f40d57f499208 - 59.66% (133 MB)

[#007] sha256:0c7f2815e4a827a6c591b5d9ada6f2d0f5ad307e96912f50cf8e77837a34533c - 0.0% (2.93 KB)

[#008] sha256:52619df21a801d769c934e60dd42c1faa074577d3c8c0ad435eee80a62d74819 - 6.3% (14.1 MB)

[#009] sha256:a5f6a24ac5fbebb47e9f7fbf5b97322b1a959b1b2f53a01db868184d446288ef - 3.06% (6.83 MB)

[#010] sha256:33ef5dd5354fbb5373da0e84c4421c47e35193e3340a3d80165958d9e075753d - 0.0% (2.22 KB)

[#011] sha256:f0597dc7efaa6300b0b1f9a5434ac78ebaba302639740f242364276572dda392 - 0.0% (1.53 KB)

History
2026-01-28 01:17:55 UTC (buildkit.dockerfile.v0)

ADD alpine-minirootfs-3.22.3-aarch64.tar.gz / # buildkit

2026-01-28 01:17:55 UTC (buildkit.dockerfile.v0)

CMD ["/bin/sh"]

2026-01-28 02:58:37 UTC (buildkit.dockerfile.v0)

ENV JAVA_HOME=/opt/java/openjdk

2026-01-28 02:58:37 UTC (buildkit.dockerfile.v0)

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

2026-01-28 02:58:37 UTC (buildkit.dockerfile.v0)

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

2026-01-28 02:58:37 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

2026-01-28 02:58:37 UTC (buildkit.dockerfile.v0)

ENV JAVA_VERSION=jdk-21.0.9+10

2026-01-28 02:58:40 UTC (buildkit.dockerfile.v0)

RUN /bin/sh -c set -eux; ARCH="$(apk --print-arch)"; case "${ARCH}" in aarch64) ESUM='7f8c230ba505b418e4288e2b34758a6e4da32470944740e5ba0cfaae02271c22'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.9%2B10/OpenJDK21U-jre_aarch64_alpine-linux_hotspot_21.0.9_10.tar.gz'; ;; x86_64) ESUM='17aca4ecc1600f70ec88ea0f8bf3a06ba6806bdae8c96d03c07683c800f0d4e8'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.9%2B10/OpenJDK21U-jre_x64_alpine-linux_hotspot_21.0.9_10.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

2026-01-28 02:58:40 UTC (buildkit.dockerfile.v0)

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

2026-01-28 02:58:40 UTC (buildkit.dockerfile.v0)

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

2026-01-28 02:58:40 UTC (buildkit.dockerfile.v0)

ENTRYPOINT ["/__cacert_entrypoint.sh"]

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

EXPOSE [9092/tcp]

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

USER root

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

ARG kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.2.0-rc3/kafka_2.13-4.2.0.tgz

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

ARG build_date=2026-02-02

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

COPY *kafka.tgz kafka.tgz # buildkit

2026-02-02 13:29:32 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:30:11 UTC (buildkit.dockerfile.v0)

RUN |2 kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.2.0-rc3/kafka_2.13-4.2.0.tgz build_date=2026-02-02 /bin/sh -c mkdir opt/kafka; set -eux ; apk update ; apk upgrade ; apk add --no-cache bash; if [ -n "$kafka_url" ]; then apk add --no-cache wget gcompat gpg gpg-agent procps; wget -nv -O kafka.tgz "$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; rm kafka.tgz kafka.tgz.asc KEYS; apk del wget gpg gpg-agent; else tar xfz kafka.tgz -C /opt/kafka --strip-components 1; rm kafka.tgz; fi; 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; apk cache clean; # buildkit

2026-02-02 13:30:11 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:32:52 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:32:52 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:32:52 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:32:52 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:32:52 UTC (buildkit.dockerfile.v0)

USER appuser

2026-02-02 13:32:52 UTC (buildkit.dockerfile.v0)

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

2026-02-02 13:32:52 UTC (buildkit.dockerfile.v0)

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