FROM alpine:3.20

RUN apk add --no-cache ca-certificates

RUN set -eux; \
# https://github.com/distribution/distribution/releases
	version='3.0.0-beta.1'; \
	apkArch="$(apk --print-arch)"; \
	case "$apkArch" in \
		x86_64)  arch='amd64';   sha256='96344f15da3ddbef8cf300f9642d03a2b0a7aaa0b593dfe89a9ad266c5aa4ff4' ;; \
		aarch64) arch='arm64';   sha256='62e3e0c168f62ac274672446a3f6ea89ebdfedc6630e4b02d93900b7022dbe88' ;; \
		armhf)   arch='armv6';   sha256='01a5373d1e05bf539a1ddf5892c3bfa7377bbc02b340f6260eb7a3c62da99897' ;; \
		armv7)   arch='armv7';   sha256='fb3748b3108950ba3a0b2868f4cd2317ab308d7436944bdcd3ac62f734b68eb5' ;; \
		ppc64le) arch='ppc64le'; sha256='eccd060cf2d0d801fad27994d09aa43c945629cff7664f5d27bee9698b58f2a6' ;; \
		s390x)   arch='s390x';   sha256='b4c415a28c9d58453455068542e92b94b080dbbbc6e990f2360098a64756c71d' ;; \
		*) echo >&2 "error: unsupported architecture: $apkArch"; exit 1 ;; \
	esac; \
	wget -O registry.tar.gz "https://github.com/distribution/distribution/releases/download/v${version}/registry_${version}_linux_${arch}.tar.gz"; \
	echo "$sha256 *registry.tar.gz" | sha256sum -c -; \
	tar --extract --verbose --file registry.tar.gz --directory /bin/ registry; \
	rm registry.tar.gz; \
	registry --version

COPY ./config-example.yml /etc/distribution/config.yml

VOLUME ["/var/lib/registry"]
EXPOSE 5000

COPY entrypoint.sh /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]

CMD ["/etc/distribution/config.yml"]