Plugin alters Dockerfile massively. How to suppress that?

[FSeidinger-XI]

Hey there,

I'm using this plugin for the first time and use it with with a very simple Dockerfile. When building the docker image, fabric8io adds some commands to the build. How can I suppress them?

Here is my Dockerfile:

FROM eclipse-temurin:21-jre-alpine

ARG IMAGE_CREATED
ARG IMAGE_VERSION
ARG IMAGE_REVISION
ARG IMAGE_REF_NAME

LABEL org.opencontainers.image.created="${IMAGE_CREATED}"
LABEL org.opencontainers.image.version="${IMAGE_VERSION}"
LABEL org.opencontainers.image.revision="${IMAGE_REVISION}"
LABEL org.opencontainers.image.ref.name="${IMAGE_REF_NAME}"

WORKDIR /app

COPY target/app.jar /app/app.jar

ENTRYPOINT ["java", "-jar", "app.jar"]

When I push the image to a registry, the registry list the following Dockerfile used instead:

RUN ADD alpine-minirootfs-3.20.3-x86_64.tar.gz / # buildkit
RUN CMD ["/bin/sh"]
RUN ENV JAVA_HOME=/opt/java/openjdk
RUN ENV PATH=/opt/java/openjdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
RUN ENV LANG=en_US.UTF-8 LANGUAGE=en_US:en LC_ALL=en_US.UTF-8
RUN 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
RUN ENV JAVA_VERSION=jdk-21.0.5+11
RUN RUN /bin/sh -c set -eux; ARCH="$(apk --print-arch)"; case "${ARCH}" in aarch64) ESUM='12b988a3d934e3eb89c6a981a93f8e2adf0a62cc9030487dee76c0c29b93714d'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.5%2B11/OpenJDK21U-jre_aarch64_alpine-linux_hotspot_21.0.5_11.tar.gz'; ;; x86_64) ESUM='2dfa33fb8e9474e6967c6cf17964abb5ddce9c17fa6a9f8d7aa221a0ae295df9'; BINARY_URL='https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.5%2B11/OpenJDK21U-jre_x64_alpine-linux_hotspot_21.0.5_11.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 -r "${GNUPGHOME}" /tmp/openjdk.tar.gz.sig; echo "${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 ${JAVA_HOME}/lib/src.zip; # buildkit
RUN RUN /bin/sh -c set -eux; echo "Verifying install ..."; echo "java --version"; java --version; echo "Complete." # buildkit
COPY --chmod=755 entrypoint.sh /__cacert_entrypoint.sh # buildkit
RUN ENTRYPOINT ["/__cacert_entrypoint.sh"]
ARG IMAGE_CREATED
ARG IMAGE_VERSION
ARG IMAGE_REVISION
ARG IMAGE_REF_NAME

LABEL org.opencontainers.image.created=2024-12-21T16:29:06+0000
LABEL org.opencontainers.image.version=feature-build-plugin-0.2.0-SNAPSHOT-db48912
LABEL org.opencontainers.image.revision=no-set
LABEL org.opencontainers.image.ref.name=website-next-js-backend
WORKDIR /app
COPY file:6c6955f1889f0016c04f5fd3bf2e065d9565db0f8d63d7cb22d3badf76a3e7de in /app/app.jar
ENTRYPOINT ["java" "-jar" "app.jar"]

This is not what I want. How can I suppress the startup code and the apline-minirootfs parts?

[FSeidinger-XI]

Checked with manual builds and I maybe wrong here. The extra code in Dockerfile seems to be added by docker buildx. Sorry for the inconvenience.