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external-secrets/Dockerfile.ubi
Idan Adar 9a6ffcd844
Make UBI more tolerable from OS vulnerabilities (#3607)
* Make UBI safer from OS vulnerabilities

* Add missing files

* Use correct packages

* Fix CVEs
2024-06-20 17:50:49 +02:00

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FROM registry.access.redhat.com/ubi8/ubi as minimal-ubi
ARG TARGETOS
ARG TARGETARCH
RUN dnf update -y && dnf install -y binutils
# prep target rootfs for scratch container
WORKDIR /
RUN mkdir /image && \
ln -s usr/bin /image/bin && \
ln -s usr/sbin /image/sbin && \
ln -s usr/lib64 /image/lib64 && \
ln -s usr/lib /image/lib && \
mkdir -p /image/{usr/bin,usr/lib64,usr/lib,root,home,proc,etc,sys,var,dev}
COPY ubi-build-files-${TARGETARCH}.txt /tmp
# Copy all the required files from the base UBI image into the image directory
# As the go binary is not statically compiled this includes everything needed for CGO to work, cacerts, tzdata and RH release files
RUN tar cf /tmp/files.tar -T /tmp/ubi-build-files-${TARGETARCH}.txt && tar xf /tmp/files.tar -C /image/ \
&& strip --strip-unneeded /image/usr/lib64/*[0-9].so
# Generate a rpm database which contains all the packages that you said were needed in ubi-build-files-*.txt
RUN rpm --root /image --initdb \
&& PACKAGES=$(rpm -qf $(cat /tmp/ubi-build-files-${TARGETARCH}.txt) | grep -v "is not owned by any package" | sort -u) \
&& echo dnf install -y 'dnf-command(download)' \
&& dnf download --destdir / ${PACKAGES} \
&& rpm --root /image -ivh --justdb --nodeps `for i in ${PACKAGES}; do echo $i.rpm; done`
FROM scratch
# Copy all required files + rpm database so the image is scannable
COPY --from=minimal-ubi /image/ /
USER 65534
ARG TARGETOS
ARG TARGETARCH
COPY bin/external-secrets-${TARGETOS}-${TARGETARCH} /bin/external-secrets
ENTRYPOINT ["/bin/external-secrets"]