Dockerfile-alpine.template

FROM alpine:%%TAG%%

ENV JULIA_PATH /usr/local/julia
ENV PATH $JULIA_PATH/bin:$PATH

# https://julialang.org/juliareleases.asc
# Julia (Binary signing key) <buildbot@julialang.org>
ENV JULIA_GPG 3673DF529D9049477F76B37566E3C7DC03D6E495

# https://julialang.org/downloads/
ENV JULIA_VERSION %%JULIA_VERSION%%

RUN set -eux; \
	\
	apk add --no-cache --virtual .fetch-deps gnupg; \
	\
# https://julialang.org/downloads/#julia-command-line-version
# https://julialang-s3.julialang.org/bin/checksums/julia-%%JULIA_VERSION%%.sha256
# this "case" statement is generated via "update.sh"
	%%ARCH-CASE%%; \
	\
	folder="$(echo "$JULIA_VERSION" | cut -d. -f1-2)"; \
	wget -O julia.tar.gz.asc "https://julialang-s3.julialang.org/bin/musl/${dirArch}/${folder}/julia-${JULIA_VERSION}-musl-${tarArch}.tar.gz.asc"; \
	wget -O julia.tar.gz     "https://julialang-s3.julialang.org/bin/musl/${dirArch}/${folder}/julia-${JULIA_VERSION}-musl-${tarArch}.tar.gz"; \
	\
	echo "${sha256} *julia.tar.gz" | sha256sum -c -; \
	\
	export GNUPGHOME="$(mktemp -d)"; \
	gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$JULIA_GPG"; \
	gpg --batch --verify julia.tar.gz.asc julia.tar.gz; \
	command -v gpgconf > /dev/null && gpgconf --kill all; \
	rm -rf "$GNUPGHOME" julia.tar.gz.asc; \
	\
	mkdir "$JULIA_PATH"; \
	tar -xzf julia.tar.gz -C "$JULIA_PATH" --strip-components 1; \
	rm julia.tar.gz; \
	\
	apk del --no-network .fetch-deps; \
	\
# smoke test
	julia --version

CMD ["julia"]