Change mqm uid/gid to 999

install-mq.sh

@@ -49,8 +49,8 @@ curl -LO $MQ_URL
 tar -zxvf ./*.tar.gz
 
 # Recommended: Create the mqm user ID with a fixed UID and group, so that the file permissions work between different images
-groupadd --gid 1000 mqm
-useradd --uid 1000 --gid mqm mqm
+groupadd --system --gid 999 mqm
+useradd --system --uid 999 --gid mqm mqm
 usermod -G mqm root
 cd /tmp/mq/DebianMQServer