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6c9c6094eb
* Reduce footprint of UBI images by only keeping relevant packages and rpm DB Signed-off-by: jack-baines <jack.baines@uk.ibm.com> * Fix bash syntax error Signed-off-by: jack-baines <jack.baines@uk.ibm.com> * Add missing ARG Signed-off-by: jack-baines <jack.baines@uk.ibm.com> * TARGETARCH set by buildx and avoids splitting another VAR Signed-off-by: jack-baines <jack.baines@uk.ibm.com> * Update Dockerfile.ubi Change top level build label to avoid confusion --------- Signed-off-by: jack-baines <jack.baines@uk.ibm.com>
41 lines
1.5 KiB
Docker
41 lines
1.5 KiB
Docker
ARG BUILDER_IMAGE
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ARG BASE_IMAGE
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FROM --platform=${BUILDPLATFORM} ${BUILDER_IMAGE} as SRC
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FROM ${BASE_IMAGE:-registry.access.redhat.com/ubi8/ubi:latest} as ubi
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ARG TARGETARCH
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RUN dnf update -y && dnf install -y binutils
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# prep target rootfs for scratch container
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WORKDIR /
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RUN mkdir /image && \
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ln -s usr/bin /image/bin && \
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ln -s usr/sbin /image/sbin && \
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ln -s usr/lib64 /image/lib64 && \
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ln -s usr/lib /image/lib && \
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mkdir -p /image/{usr/bin,usr/lib64,usr/lib,root,home,proc,etc,sys,var,dev}
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COPY ubi-build-files-${TARGETARCH}.txt /tmp
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# Copy all the required files from the base UBI image into the image directory
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# As the go binary is not statically compiled this includes everything needed for CGO to work, cacerts, tzdata and RH release files
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RUN tar cf /tmp/files.tar -T /tmp/ubi-build-files-${TARGETARCH}.txt && tar xf /tmp/files.tar -C /image/ \
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&& strip --strip-unneeded /image/usr/lib64/*[0-9].so
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# Generate a rpm database which contains all the packages that you said were needed in ubi-build-files-*.txt
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RUN rpm --root /image --initdb \
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&& PACKAGES=$(rpm -qf $(cat /tmp/ubi-build-files-${TARGETARCH}.txt) | grep -v "is not owned by any package" | sort -u) \
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&& echo dnf install -y 'dnf-command(download)' \
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&& dnf download --destdir / ${PACKAGES} \
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&& rpm --root /image -ivh --justdb --nodeps `for i in ${PACKAGES}; do echo $i.rpm; done`
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FROM scratch
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COPY --from=ubi /image/ /
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COPY --from=SRC /manager .
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USER 65532:65532
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# Port for metrics and probes
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EXPOSE 9090
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ENTRYPOINT ["/manager"]
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