FROM docker.io/library/bash:5.2.37@sha256:01a15c6f48f6a3c08431cd77e11567823530b18159889dca3b7309b707beef91
SHELL ["/bin/bash", "-u", "-e", "-o", "pipefail", "-c"]
# ignore pipefail because
# bash is non-default location https://github.com/tianon/docker-bash/issues/29
# hadolint only uses default locations https://github.com/hadolint/hadolint/issues/977
# hadolint ignore=DL4006
RUN ARCH=$(uname -m) && \
	[[ $ARCH == x86_64 ]] && export SUFFIX=amd64; \
	[[ $ARCH == aarch64 ]] && export SUFFIX=arm64; \
	[[ -z ${SUFFIX:-} ]] && echo "Unknown arch: $ARCH" && exit 1; \
	set -o pipefail && \
	wget -q "https://github.com/moby/buildkit/releases/download/v0.21.0/buildkit-v0.21.0.linux-$SUFFIX.tar.gz" --output-document=- | \
	tar --gz --extract --directory=/usr/local bin/buildctl
COPY --chmod=555 entrypoint.sh /usr/local/bin/entrypoint.sh
ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
USER 1000:1000