apache
    kafka
    4.2.0-rc2
Namespace
apache
Image / Tag
kafka:4.2.0-rc2
Content Digest
sha256:13f1e9fb68204154a60598e54bf0dc4f887621ebba6c7f53a63cd9fa334d5bb2
Details
Created

2026-01-27 15:09:13 UTC

Size

227 MB

Content Digest
Labels
  • org.label-schema.build-date
    2026-01-27
  • 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] sha256:2d35ebdb57d9971fea0cac1582aa78935adf8058b2cc32db163c98822e5dfa1b - 1.6% (3.63 MB)

[#001] sha256:93902f35c01693819c190c354786cbb573f4ef49a5b865d6c34f2197839cc3e4 - 6.84% (15.5 MB)

[#002] sha256:3a857bcc1a1505748a54fef25bb81f303468a26d3de127b6b0044b1ffde6275a - 22.32% (50.7 MB)

[#003] sha256:15a75c308165465141d861c1b7f7ec799b18fc84d5d8b87396dc29c3aa4894ff - 0.0% (128 Bytes)

[#004] sha256:23d1cf1d02f064d13d647e4816e26b17678a634769ec583b4eb29d5a68d415f7 - 0.0% (2.23 KB)

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

[#006] sha256:f41e6b19229064c366e1f5228bb7d828c0721f3e828587ddc9640c4da6862c49 - 60.03% (136 MB)

[#007] sha256:834a53988ec7c3f192c797c69df2e38112769442871cd74eb8b372b129c9380d - 0.0% (2.93 KB)

[#008] sha256:73e9a5ada5a63d96abba7350e7fa66a87a0021f2f841b8a48094683f513debb5 - 6.2% (14.1 MB)

[#009] sha256:3d99bfbcd43e4c5ab00dc3a17fd138d23fd72ca7828334c7bd79f7f400e56ad8 - 3.01% (6.84 MB)

[#010] sha256:d5d51dc4eca729c285889cdd3b3c37b0b8378fa6855ad96d2792556c1a8c5d0e - 0.0% (2.22 KB)

[#011] sha256:fd46b18e6ab03d8c99b7e0223acb7c8e153385b372875a7f0faf9e7f49849dc5 - 0.0% (1.53 KB)

History
2025-10-08 11:04:56 UTC (buildkit.dockerfile.v0)

ADD alpine-minirootfs-3.22.2-x86_64.tar.gz / # buildkit

2025-10-08 11:04:56 UTC (buildkit.dockerfile.v0)

CMD ["/bin/sh"]

2025-11-08 17:59:35 UTC (buildkit.dockerfile.v0)

ENV JAVA_HOME=/opt/java/openjdk

2025-11-08 17:59:35 UTC (buildkit.dockerfile.v0)

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

2025-11-08 17:59:35 UTC (buildkit.dockerfile.v0)

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

2025-11-08 17:59:35 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

2025-11-08 17:59:35 UTC (buildkit.dockerfile.v0)

ENV JAVA_VERSION=jdk-21.0.9+10

2025-11-08 17:59:38 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

2025-11-08 17:59:38 UTC (buildkit.dockerfile.v0)

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

2025-11-08 17:59:38 UTC (buildkit.dockerfile.v0)

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

2025-11-08 17:59:38 UTC (buildkit.dockerfile.v0)

ENTRYPOINT ["/__cacert_entrypoint.sh"]

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

EXPOSE [9092/tcp]

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

USER root

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

ARG kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.2.0-rc2/kafka_2.13-4.2.0.tgz

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

ARG build_date=2026-01-27

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

COPY *kafka.tgz kafka.tgz # buildkit

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

LABEL org.label-schema.name=kafka org.label-schema.description=Apache Kafka org.label-schema.build-date=2026-01-27 org.label-schema.vcs-url=https://github.com/apache/kafka org.opencontainers.image.authors=Apache Kafka

2026-01-27 15:08:47 UTC (buildkit.dockerfile.v0)

RUN |2 kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.2.0-rc2/kafka_2.13-4.2.0.tgz build_date=2026-01-27 /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

2026-01-27 15:08:47 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:09:13 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:09:13 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:09:13 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:09:13 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:09:13 UTC (buildkit.dockerfile.v0)

USER appuser

2026-01-27 15:09:13 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:09:13 UTC (buildkit.dockerfile.v0)

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

Details
Created

2026-01-27 15:12:05 UTC

Size

227 MB

Content Digest
Labels
  • org.label-schema.build-date
    2026-01-27
  • 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] sha256:6b59a28fa20117e6048ad0616b8d8c901877ef15ff4c7f18db04e4f01f43bc39 - 1.74% (3.95 MB)

[#001] sha256:ce9b9ccbec66a68ab16d44064cb6d5b3237fae5cc9357c0aa358b9dcdadbd9a6 - 6.84% (15.5 MB)

[#002] sha256:d029414ffab73c2cdc0ed11f28215fa32c6e67035a81da529c1cfadeae1de11f - 21.98% (49.8 MB)

[#003] sha256:aae04221b2e584a4e0a67d1d535900a5eb9c049d2a2051d0b66d4d2af68f77ac - 0.0% (126 Bytes)

[#004] sha256:6ada9f9a574189d8e20095927344850458cfffc58029c0e6d5d292c6f568c419 - 0.0% (2.23 KB)

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

[#006] sha256:15f1ac0bfac56a688c42a497481d1c098e6449d22e5034f44fac52f2a3187dd5 - 60.22% (136 MB)

[#007] sha256:f8397fccf51e42f7b153a874e160d2dde2aa47107e6cbb196fb144e679a5bf0a - 0.0% (2.93 KB)

[#008] sha256:63b85663411652dceeef22470e536e1043c3c220ed33173815552906cef44ea9 - 6.2% (14 MB)

[#009] sha256:034c378ee5feacbbd9a91aacf7b41a470d10ae98b9b88b846f77a2e38d3a46a3 - 3.02% (6.84 MB)

[#010] sha256:de11d70bd96a334aca30a893d7f0bd93fb9b058d4bfbeec36df6dca446737b9e - 0.0% (2.22 KB)

[#011] sha256:aba6580b370df8e11be5ed81c4d95446f5bd6e66c35dfcc3a5254799f2d8dff2 - 0.0% (1.53 KB)

History
2025-10-08 11:04:56 UTC (buildkit.dockerfile.v0)

ADD alpine-minirootfs-3.22.2-aarch64.tar.gz / # buildkit

2025-10-08 11:04:56 UTC (buildkit.dockerfile.v0)

CMD ["/bin/sh"]

2025-11-08 17:58:58 UTC (buildkit.dockerfile.v0)

ENV JAVA_HOME=/opt/java/openjdk

2025-11-08 17:58:58 UTC (buildkit.dockerfile.v0)

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

2025-11-08 17:58:58 UTC (buildkit.dockerfile.v0)

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

2025-11-08 17:58:58 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

2025-11-08 17:58:58 UTC (buildkit.dockerfile.v0)

ENV JAVA_VERSION=jdk-21.0.9+10

2025-11-08 17:59:01 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

2025-11-08 17:59:01 UTC (buildkit.dockerfile.v0)

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

2025-11-08 17:59:01 UTC (buildkit.dockerfile.v0)

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

2025-11-08 17:59:01 UTC (buildkit.dockerfile.v0)

ENTRYPOINT ["/__cacert_entrypoint.sh"]

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

EXPOSE [9092/tcp]

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

USER root

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

ARG kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.2.0-rc2/kafka_2.13-4.2.0.tgz

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

ARG build_date=2026-01-27

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

COPY *kafka.tgz kafka.tgz # buildkit

2026-01-27 15:08:34 UTC (buildkit.dockerfile.v0)

LABEL org.label-schema.name=kafka org.label-schema.description=Apache Kafka org.label-schema.build-date=2026-01-27 org.label-schema.vcs-url=https://github.com/apache/kafka org.opencontainers.image.authors=Apache Kafka

2026-01-27 15:09:15 UTC (buildkit.dockerfile.v0)

RUN |2 kafka_url=https://dist.apache.org/repos/dist/dev/kafka/4.2.0-rc2/kafka_2.13-4.2.0.tgz build_date=2026-01-27 /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

2026-01-27 15:09:15 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:12:05 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:12:05 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:12:05 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:12:05 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:12:05 UTC (buildkit.dockerfile.v0)

USER appuser

2026-01-27 15:12:05 UTC (buildkit.dockerfile.v0)

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

2026-01-27 15:12:05 UTC (buildkit.dockerfile.v0)

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

Danger Zone
Delete Tag

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.

Delete