simplify 3

Author: mkuratczyk

packaging/docker-image/Dockerfile

@@ -2,8 +2,6 @@ ARG OTP_VERSION="27"
 
 FROM erlang:${OTP_VERSION}
 
-ARG BUILDKIT_SBOM_SCAN_STAGE=true
-
 ENV RABBITMQ_DATA_DIR /var/lib/rabbitmq
 
 RUN set -eux; \
@@ -17,7 +15,7 @@ RUN set -eux; \
 
 # Use the latest stable RabbitMQ release (https://www.rabbitmq.com/download.html)
 ARG RABBITMQ_VERSION=4.0.0
-ENV RABBITMQ_VERSION=${RABBITMQ_VERSION}
+ENV RABBITMQ_VERSION ${RABBITMQ_VERSION}
 ENV RABBITMQ_HOME /opt/rabbitmq
 
 # Add RabbitMQ to PATH
@@ -31,16 +29,7 @@ RUN set -eux; \
 	apt-get update; \
 	apt-get install --yes --no-install-recommends \
 		ca-certificates \
-# grab gosu for easy step-down from root
-		gosu \
-# Bring in tzdata so users could set the timezones through the environment
 		tzdata \
-	; \
-# verify that the "gosu" binary works
-	gosu nobody true; \
-	\
-	savedAptMark="$(apt-mark showmanual)"; \
-	apt-get install --yes --no-install-recommends \
 		gnupg \
 		wget \
 		xz-utils \
@@ -60,17 +49,7 @@ RUN set -eux; \
 	\
 	apt-mark auto '.*' > /dev/null; \
 	apt-mark manual $savedAptMark; \
-	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
-	\
-# verify assumption of no stale cookies
-	[ ! -e "$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
-	gosu rabbitmq rabbitmqctl help; \
-	gosu rabbitmq rabbitmqctl list_ciphers; \
-	gosu rabbitmq rabbitmq-plugins list; \
-# no stale cookies
-	rm "$RABBITMQ_DATA_DIR/.erlang.cookie";
+	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false;
 
 # set home so that any `--user` knows where to put the erlang cookie
 ENV HOME $RABBITMQ_DATA_DIR
@@ -80,7 +59,9 @@ 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
+ENV LANG C.UTF-8
+ENV LANGUAGE C.UTF-8
+ENV LC_ALL=C.UTF-8
 
 COPY --chown=rabbitmq:rabbitmq 10-defaults.conf 20-management_agent.disable_metrics_collector.conf /etc/rabbitmq/conf.d/
 COPY docker-entrypoint.sh /usr/local/bin/