Dockerfile-alpine.template

# Alpine Linux is not officially supported by the RabbitMQ team -- use at your own risk!
FROM alpine:3.15

RUN apk add --no-cache \
# grab su-exec for easy step-down from root
		'su-exec>=0.2' \
# bash for docker-entrypoint.sh
		bash \
# "ps" for "rabbitmqctl wait" (https://github.com/docker-library/rabbitmq/issues/162)
		procps

# Default to a PGP keyserver that pgp-happy-eyeballs recognizes, but allow for substitutions locally
ARG PGP_KEYSERVER=keyserver.ubuntu.com
# If you are building this image locally and are getting `gpg: keyserver receive failed: No data` errors,
# run the build with a different PGP_KEYSERVER, e.g. docker build --tag rabbitmq:3.8 --build-arg PGP_KEYSERVER=pgpkeys.eu 3.8/ubuntu
# For context, see https://github.com/docker-library/official-images/issues/4252

ENV OPENSSL_VERSION {{ .openssl.version }}
ENV OPENSSL_SOURCE_SHA256="{{ .openssl.sha256 }}"
# https://www.openssl.org/community/omc.html
ENV OPENSSL_PGP_KEY_IDS="{{
[
	# Matt Caswell
	"8657 ABB2 60F0 56B1 E519 0839 D9C4 D26D 0E60 4491",

	# Mark J. Cox
	"5B25 45DA B219 95F4 088C EFAA 36CE E4DE B00C FE33",

	# Paul Dale
	"ED23 0BEC 4D4F 2518 B9D7 DF41 F0DB 4D21 C1D3 5231",

	# Tim Hudson
	"C1F3 3DD8 CE1D 4CC6 13AF 14DA 9195 C482 41FB F7DD",

	# Richard Levitte
	"7953 AC1F BC3D C8B3 B292 393E D5E9 E43F 7DF9 EE8C",

	# Kurt Roeckx
	"E5E5 2560 DD91 C556 DDBD A5D0 2064 C536 41C2 5E5D"
]
# TODO auto-generate / scrape this list from the canonical upstream source instead (check the signature file and add an entry in the .openssl object with just the one signature that we expect to have signed this release, after cross-referencing the official OMC list?)
| map("0x" + gsub(" "; "")) | join(" ")
}}"

ENV OTP_VERSION {{ .otp.version }}
# TODO add PGP checking when the feature will be added to Erlang/OTP's build system
# https://erlang.org/pipermail/erlang-questions/2019-January/097067.html
ENV OTP_SOURCE_SHA256="{{ .otp.sha256 }}"

# Install dependencies required to build Erlang/OTP from source
# https://erlang.org/doc/installation_guide/INSTALL.html
# autoconf: Required to configure Erlang/OTP before compiling
# dpkg-dev: Required to set up host & build type when compiling Erlang/OTP
# gnupg: Required to verify OpenSSL artefacts
# libncurses5-dev: Required for Erlang/OTP new shell & observer_cli - https://github.com/zhongwencool/observer_cli
RUN set -eux; \
	\
	apk add --no-cache --virtual .build-deps \
		autoconf \
		dpkg-dev dpkg \
		g++ \
		gcc \
		gnupg \
		libc-dev \
		linux-headers \
		make \
		ncurses-dev \
	; \
	\
	OPENSSL_SOURCE_URL="https://www.openssl.org/source/openssl-$OPENSSL_VERSION.tar.gz"; \
	OPENSSL_PATH="/usr/local/src/openssl-$OPENSSL_VERSION"; \
	OPENSSL_CONFIG_DIR=/usr/local/etc/ssl; \
	\
# /usr/local/src doesn't exist in Alpine by default
	mkdir /usr/local/src; \
	\
# Required by the crypto & ssl Erlang/OTP applications
	wget --output-document "$OPENSSL_PATH.tar.gz.asc" "$OPENSSL_SOURCE_URL.asc"; \
	wget --output-document "$OPENSSL_PATH.tar.gz" "$OPENSSL_SOURCE_URL"; \
	export GNUPGHOME="$(mktemp -d)"; \
	for key in $OPENSSL_PGP_KEY_IDS; do \
		gpg --batch --keyserver "$PGP_KEYSERVER" --recv-keys "$key"; \
	done; \
	gpg --batch --verify "$OPENSSL_PATH.tar.gz.asc" "$OPENSSL_PATH.tar.gz"; \
	gpgconf --kill all; \
	rm -rf "$GNUPGHOME"; \
	echo "$OPENSSL_SOURCE_SHA256 *$OPENSSL_PATH.tar.gz" | sha256sum -c -; \
	mkdir -p "$OPENSSL_PATH"; \
	tar --extract --file "$OPENSSL_PATH.tar.gz" --directory "$OPENSSL_PATH" --strip-components 1; \
	\
# Configure OpenSSL for compilation
	cd "$OPENSSL_PATH"; \
# OpenSSL's "config" script uses a lot of "uname"-based target detection...
	MACHINE="$(dpkg-architecture --query DEB_BUILD_GNU_CPU)" \
	RELEASE="4.x.y-z" \
	SYSTEM='Linux' \
	BUILD='???' \
	./config \
		--openssldir="$OPENSSL_CONFIG_DIR" \
# add -rpath to avoid conflicts between our OpenSSL's "libssl.so" and the libssl package by making sure /usr/local/lib is searched first (but only for Erlang/OpenSSL to avoid issues with other tools using libssl; https://github.com/docker-library/rabbitmq/issues/364)
		-Wl,-rpath=/usr/local/lib \
	; \
# Compile, install OpenSSL, verify that the command-line works & development headers are present
	make -j "$(getconf _NPROCESSORS_ONLN)"; \
	make install_sw install_ssldirs; \
	cd ..; \
	rm -rf "$OPENSSL_PATH"*; \
# use Alpine's CA certificates
	rmdir "$OPENSSL_CONFIG_DIR/certs" "$OPENSSL_CONFIG_DIR/private"; \
	ln -sf /etc/ssl/certs /etc/ssl/private "$OPENSSL_CONFIG_DIR"; \
# smoke test
	openssl version; \
	\
	OTP_SOURCE_URL="https://github.com/erlang/otp/releases/download/OTP-$OTP_VERSION/otp_src_$OTP_VERSION.tar.gz"; \
	OTP_PATH="/usr/local/src/otp-$OTP_VERSION"; \
	\
# Download, verify & extract OTP_SOURCE
	mkdir -p "$OTP_PATH"; \
	wget --output-document "$OTP_PATH.tar.gz" "$OTP_SOURCE_URL"; \
	echo "$OTP_SOURCE_SHA256 *$OTP_PATH.tar.gz" | sha256sum -c -; \
	tar --extract --file "$OTP_PATH.tar.gz" --directory "$OTP_PATH" --strip-components 1; \
	\
# Configure Erlang/OTP for compilation, disable unused features & applications
# https://erlang.org/doc/applications.html
# ERL_TOP is required for Erlang/OTP makefiles to find the absolute path for the installation
	cd "$OTP_PATH"; \
	export ERL_TOP="$OTP_PATH"; \
	./otp_build autoconf; \
	export CFLAGS='-g -O2'; \
# add -rpath to avoid conflicts between our OpenSSL's "libssl.so" and the libssl package by making sure /usr/local/lib is searched first (but only for Erlang/OpenSSL to avoid issues with other tools using libssl; https://github.com/docker-library/rabbitmq/issues/364)
	export CFLAGS="$CFLAGS -Wl,-rpath=/usr/local/lib"; \
	hostArch="$(dpkg-architecture --query DEB_HOST_GNU_TYPE)"; \
	buildArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
	dpkgArch="$(dpkg --print-architecture)"; dpkgArch="${dpkgArch##*-}"; \
# JIT is only supported on amd64 (until 24.x+1, where it will support arm64 as well); https://github.com/erlang/otp/blob/OTP-24.0.5/erts/configure#L21694-L21709 / https://github.com/erlang/otp/pull/4869
	jitFlag=; \
	case "$dpkgArch" in \
		amd64) jitFlag='--enable-jit' ;; \
	esac; \
	./configure \
		--host="$hostArch" \
		--build="$buildArch" \
		--disable-dynamic-ssl-lib \
		--disable-hipe \
		--disable-sctp \
		--disable-silent-rules \
		--enable-clock-gettime \
		--enable-hybrid-heap \
		--enable-kernel-poll \
		--enable-shared-zlib \
		--enable-smp-support \
		--enable-threads \
		--with-microstate-accounting=extra \
		--without-common_test \
		--without-debugger \
		--without-dialyzer \
		--without-diameter \
		--without-edoc \
		--without-erl_docgen \
		--without-et \
		--without-eunit \
		--without-ftp \
		--without-hipe \
		--without-jinterface \
		--without-megaco \
		--without-observer \
		--without-odbc \
		--without-reltool \
		--without-ssh \
		--without-tftp \
		--without-wx \
		$jitFlag \
	; \
# Compile & install Erlang/OTP
	make -j "$(getconf _NPROCESSORS_ONLN)" GEN_OPT_FLGS="-O2 -fno-strict-aliasing"; \
	make install; \
	cd ..; \
	rm -rf \
		"$OTP_PATH"* \
		/usr/local/lib/erlang/lib/*/examples \
		/usr/local/lib/erlang/lib/*/src \
	; \
	\
	runDeps="$( \
		scanelf --needed --nobanner --format '%n#p' --recursive /usr/local \
			| tr ',' '\n' \
			| sort -u \
			| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
	)"; \
	apk add --no-cache --virtual .otp-run-deps $runDeps; \
	apk del --no-network .build-deps; \
	\
# Check that OpenSSL still works after purging build dependencies
	openssl version; \
# Check that Erlang/OTP crypto & ssl were compiled against OpenSSL correctly
	erl -noshell -eval 'io:format("~p~n~n~p~n~n", [crypto:supports(), ssl:versions()]), init:stop().'

ENV RABBITMQ_DATA_DIR=/var/lib/rabbitmq
# Create rabbitmq system user & group, fix permissions & allow root user to connect to the RabbitMQ Erlang VM
RUN set -eux; \
	addgroup -g 101 -S rabbitmq; \
	adduser -u 100 -S -h "$RABBITMQ_DATA_DIR" -G rabbitmq rabbitmq; \
	mkdir -p "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
	chown -fR rabbitmq:rabbitmq "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
	chmod 777 "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
	ln -sf "$RABBITMQ_DATA_DIR/.erlang.cookie" /root/.erlang.cookie

# Use the latest stable RabbitMQ release (https://www.rabbitmq.com/download.html)
ENV RABBITMQ_VERSION {{ .version }}
# https://www.rabbitmq.com/signatures.html#importing-gpg
ENV RABBITMQ_PGP_KEY_ID="0x0A9AF2115F4687BD29803A206B73A36E6026DFCA"
ENV RABBITMQ_HOME=/opt/rabbitmq

# Add RabbitMQ to PATH, send all logs to TTY
ENV PATH=$RABBITMQ_HOME/sbin:$PATH \
	RABBITMQ_LOGS=-

# Install RabbitMQ
RUN set -eux; \
	\
	apk add --no-cache --virtual .build-deps \
		gnupg \
		xz \
	; \
	\
	RABBITMQ_SOURCE_URL="https://github.com/rabbitmq/rabbitmq-server/releases/download/v$RABBITMQ_VERSION/rabbitmq-server-generic-unix-latest-toolchain-$RABBITMQ_VERSION.tar.xz"; \
	RABBITMQ_PATH="/usr/local/src/rabbitmq-$RABBITMQ_VERSION"; \
	\
	wget --output-document "$RABBITMQ_PATH.tar.xz.asc" "$RABBITMQ_SOURCE_URL.asc"; \
	wget --output-document "$RABBITMQ_PATH.tar.xz" "$RABBITMQ_SOURCE_URL"; \
	\
	export GNUPGHOME="$(mktemp -d)"; \
	gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys "$RABBITMQ_PGP_KEY_ID"; \
	gpg --batch --verify "$RABBITMQ_PATH.tar.xz.asc" "$RABBITMQ_PATH.tar.xz"; \
	gpgconf --kill all; \
	rm -rf "$GNUPGHOME"; \
	\
	mkdir -p "$RABBITMQ_HOME"; \
	tar --extract --file "$RABBITMQ_PATH.tar.xz" --directory "$RABBITMQ_HOME" --strip-components 1; \
	rm -rf "$RABBITMQ_PATH"*; \
# Do not default SYS_PREFIX to RABBITMQ_HOME, leave it empty
	grep -qE '^SYS_PREFIX=\$\{RABBITMQ_HOME\}$' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
	sed -i 's/^SYS_PREFIX=.*$/SYS_PREFIX=/' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
	grep -qE '^SYS_PREFIX=$' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
	chown -R rabbitmq:rabbitmq "$RABBITMQ_HOME"; \
	\
	apk del .build-deps; \
	\
# verify assumption of no stale cookies
	[ ! -e "$RABBITMQ_DATA_DIR/.erlang.cookie" ]; \
# Ensure RabbitMQ was installed correctly by running a few commands that do not depend on a running server, as the rabbitmq user
# If they all succeed, it's safe to assume that things have been set up correctly
	su-exec rabbitmq rabbitmqctl help; \
	su-exec rabbitmq rabbitmqctl list_ciphers; \
	su-exec rabbitmq rabbitmq-plugins list; \
# no stale cookies
	rm "$RABBITMQ_DATA_DIR/.erlang.cookie"

# Enable Prometheus-style metrics by default (https://github.com/docker-library/rabbitmq/issues/419)
RUN set -eux; \
	su-exec rabbitmq rabbitmq-plugins enable --offline rabbitmq_prometheus; \
	echo 'management_agent.disable_metrics_collector = true' > /etc/rabbitmq/conf.d/management_agent.disable_metrics_collector.conf; \
	chown rabbitmq:rabbitmq /etc/rabbitmq/conf.d/management_agent.disable_metrics_collector.conf

# Added for backwards compatibility - users can simply COPY custom plugins to /plugins
RUN ln -sf /opt/rabbitmq/plugins /plugins

# set home so that any `--user` knows where to put the erlang cookie
ENV HOME $RABBITMQ_DATA_DIR
# Hint that the data (a.k.a. home dir) dir should be separate volume
VOLUME $RABBITMQ_DATA_DIR

# warning: the VM is running with native name encoding of latin1 which may cause Elixir to malfunction as it expects utf8. Please ensure your locale is set to UTF-8 (which can be verified by running "locale" in your shell)
# Setting all environment variables that control language preferences, behaviour differs - https://www.gnu.org/software/gettext/manual/html_node/The-LANGUAGE-variable.html#The-LANGUAGE-variable
# https://docs.docker.com/samples/library/ubuntu/#locales
ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8

{{ if ([ "3.8", "3.8-rc" ] | index(env.version)) then "" else ( -}}
COPY --chown=rabbitmq:rabbitmq 10-default-guest-user.conf /etc/rabbitmq/conf.d/
{{ ) end -}}
COPY docker-entrypoint.sh /usr/local/bin/
ENTRYPOINT ["docker-entrypoint.sh"]

EXPOSE 4369 5671 5672 15691 15692 25672
CMD ["rabbitmq-server"]