Dockerfile

#
# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
#
# PLEASE DO NOT EDIT IT DIRECTLY.
#

FROM buildpack-deps:stretch-scm

# install cgo-related dependencies
RUN set -eux; \
	apt-get update; \
	apt-get install -y --no-install-recommends \
		g++ \
		gcc \
		libc6-dev \
		make \
		pkg-config \
	; \
	rm -rf /var/lib/apt/lists/*

ENV PATH /usr/local/go/bin:$PATH

ENV GOLANG_VERSION 1.17.1

RUN set -eux; \
	arch="$(dpkg --print-architecture)"; arch="${arch##*-}"; \
	url=; \
	case "$arch" in \
		'amd64') \
			url='https://dl.google.com/go/go1.17.1.linux-amd64.tar.gz'; \
			sha256='dab7d9c34361dc21ec237d584590d72500652e7c909bf082758fb63064fca0ef'; \
			;; \
		'armel') \
			export GOARCH='arm' GOARM='5' GOOS='linux'; \
			;; \
		'armhf') \
			url='https://dl.google.com/go/go1.17.1.linux-armv6l.tar.gz'; \
			sha256='ed3e4dbc9b80353f6482c441d65b51808290e94ff1d15d56da5f4a7be7353758'; \
			;; \
		'arm64') \
			url='https://dl.google.com/go/go1.17.1.linux-arm64.tar.gz'; \
			sha256='53b29236fa03ed862670a5e5e2ab2439a2dc288fe61544aa392062104ac0128c'; \
			;; \
		'i386') \
			url='https://dl.google.com/go/go1.17.1.linux-386.tar.gz'; \
			sha256='e60bb44046f424ba2cc47db7b183079b5add2f8cfa6887daf45bf2f317cc2f53'; \
			;; \
		'mips64el') \
			export GOARCH='mips64le' GOOS='linux'; \
			;; \
		'ppc64el') \
			url='https://dl.google.com/go/go1.17.1.linux-ppc64le.tar.gz'; \
			sha256='df4fa945512c3b472cf3d2dcb2e4ae5b34819607bc63f3223f5bc0c17b637dd0'; \
			;; \
		's390x') \
			url='https://dl.google.com/go/go1.17.1.linux-s390x.tar.gz'; \
			sha256='f770b72e1e1281239b12b64825f87a928a1788943c7f09cac7f28985ef2cf692'; \
			;; \
		*) echo >&2 "error: unsupported architecture '$arch' (likely packaging update needed)"; exit 1 ;; \
	esac; \
	build=; \
	if [ -z "$url" ]; then \
# https://github.com/golang/go/issues/38536#issuecomment-616897960
		build=1; \
		url='https://dl.google.com/go/go1.17.1.src.tar.gz'; \
		sha256='49dc08339770acd5613312db8c141eaf61779995577b89d93b541ef83067e5b1'; \
		echo >&2; \
		echo >&2 "warning: current architecture ($arch) does not have a compatible Go binary release; will be building from source"; \
		echo >&2; \
	fi; \
	\
	wget -O go.tgz.asc "$url.asc"; \
	wget -O go.tgz "$url" --progress=dot:giga; \
	echo "$sha256 *go.tgz" | sha256sum -c -; \
	\
# https://github.com/golang/go/issues/14739#issuecomment-324767697
	GNUPGHOME="$(mktemp -d)"; export GNUPGHOME; \
# https://www.google.com/linuxrepositories/
	gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 'EB4C 1BFD 4F04 2F6D DDCC EC91 7721 F63B D38B 4796'; \
	gpg --batch --verify go.tgz.asc go.tgz; \
	gpgconf --kill all; \
	rm -rf "$GNUPGHOME" go.tgz.asc; \
	\
	tar -C /usr/local -xzf go.tgz; \
	rm go.tgz; \
	\
	if [ -n "$build" ]; then \
		savedAptMark="$(apt-mark showmanual)"; \
		apt-get update; \
		apt-get install -y --no-install-recommends golang-go; \
		\
		( \
			cd /usr/local/go/src; \
# set GOROOT_BOOTSTRAP + GOHOST* such that we can build Go successfully
			export GOROOT_BOOTSTRAP="$(go env GOROOT)" GOHOSTOS="$GOOS" GOHOSTARCH="$GOARCH"; \
			./make.bash; \
		); \
		\
		apt-mark auto '.*' > /dev/null; \
		apt-mark manual $savedAptMark > /dev/null; \
		apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
		rm -rf /var/lib/apt/lists/*; \
		\
# pre-compile the standard library, just like the official binary release tarballs do
		go install std; \
# go install: -race is only supported on linux/amd64, linux/ppc64le, linux/arm64, freebsd/amd64, netbsd/amd64, darwin/amd64 and windows/amd64
#		go install -race std; \
		\
# remove a few intermediate / bootstrapping files the official binary release tarballs do not contain
		rm -rf \
			/usr/local/go/pkg/*/cmd \
			/usr/local/go/pkg/bootstrap \
			/usr/local/go/pkg/obj \
			/usr/local/go/pkg/tool/*/api \
			/usr/local/go/pkg/tool/*/go_bootstrap \
			/usr/local/go/src/cmd/dist/dist \
		; \
	fi; \
	\
	go version

ENV GOPATH /go
ENV PATH $GOPATH/bin:$PATH
RUN mkdir -p "$GOPATH/src" "$GOPATH/bin" && chmod -R 777 "$GOPATH"
WORKDIR $GOPATH