Dockerfile to build Docker registry on RHEL UBI Images

Dockerfile.rhel

FROM registry.redhat.io/ubi8/go-toolset:latest AS build

ENV DISTRIBUTION_DIR /opt/app-root/src/go/src/github.com/docker/distribution
ENV BUILDTAGS include_oss include_gcs

ENV GOPATH /opt/app-root/src/go
ENV GOBIN /usr/lib/golang/bin

ARG GOOS=linux
ARG GOARCH=s390x
#ARG GOARM=6

WORKDIR $DISTRIBUTION_DIR
COPY . $DISTRIBUTION_DIR

USER root
RUN chown -R default.root /opt/app-root/src/go

USER default
RUN go get -v . \
 && CGO_ENABLED=0 make PREFIX=/opt/app-root/src/go clean binaries && file ./bin/registry | grep "statically linked"



FROM registry.redhat.io/ubi8/ubi-minimal:latest
USER root
RUN microdnf clean all \
 && microdnf -y update \
 && microdnf clean all \
 && rm -rf /var/cache/dnf

COPY cmd/registry/config-dev.yml /etc/docker/registry/config.yml
COPY --from=build /opt/app-root/src/go/src/github.com/docker/distribution/bin/registry /bin/registry

#USER default

VOLUME ["/var/lib/registry"]
EXPOSE 5000
ENTRYPOINT ["registry"]
CMD ["serve", "/etc/docker/registry/config.yml"]

To build:

• Clone the docker registry repository

git clone https://github.com/docker/distribution.git

• Switch to a release like 2.7 (which is what this was tested against)

cd distribution
git checkout release/2.7

• Download this Dockerfile to the repository location

wget https://gist.githubusercontent.com/dmc5179/1e99e9ba5fa6130654add81c813b3a39/raw/4af5e22f0e50973aad5da5a7a337e1836a68010c/Dockerfile.rhel

• Build the image

podman build -t <imageName> -f Dockerfile.rhel .

Note that this image is based on the UBI images from Red Hat. This should support platforms like s390x