FROM alpine:3.15 RUN \ apk -U upgrade && apk add mosquitto mosquitto-clients openssl && \ echo "log_dest stdout" >/etc/mosquitto/mosquitto.conf && \ echo "listener 1883" >>/etc/mosquitto/mosquitto.conf && \ echo "allow_anonymous true" >>/etc/mosquitto/mosquitto.conf ENTRYPOINT ["mosquitto", "-c", "/etc/mosquitto/mosquitto.conf"]