add filer to docker-compose and entrypoint, build from local Dockerfile

docker/entrypoint.sh

@@ -28,6 +28,14 @@ case "$1" in
   	exec /usr/bin/weed $@ $ARGS
   	;;
 
+  'filer')
+  	ARGS="-ip `hostname -i`"
+  	if [ -n "$MASTER_PORT_9333_TCP_ADDR" ] ; then
+		ARGS="$ARGS -master=$MASTER_PORT_9333_TCP_ADDR:$MASTER_PORT_9333_TCP_PORT"
+	fi
+  	exec /usr/bin/weed $@ $ARGS
+	;;
+
   *)
   	exec /usr/bin/weed $@
 	;;