Different approach, always create npmuser

even if the user id is zero, and then we'll always use it

docker/rootfs/etc/s6-overlay/s6-rc.d/prepare/10-npmuser.sh

@@ -3,23 +3,18 @@
 
 set -e
 
-if [ "$PUID" = '0' ]; then
-	log_info 'Skipping npmuser configuration'
+log_info 'Configuring npmuser ...'
+
+if id -u npmuser; then
+	# user already exists
+	usermod -u "$PUID" npmuser || exit 1
 else
-	log_info 'Configuring npmuser ...'
-	groupmod -g 1000 users || exit 1
-
-	if id -u npmuser; then
-		# user already exists
-		usermod -u "$PUID" npmuser || exit 1
-	else
-		# Add npmuser user
-		useradd -u "$PUID" -U -d /tmp/npmuserhome -s /bin/false npmuser || exit 1
-	fi
-
-	usermod -G users npmuser || exit 1
-	groupmod -o -g "$PGID" npmuser || exit 1
-	# Home for npmuser
-	mkdir -p /tmp/npmuserhome
-	chown -R "$PUID:$PGID" /tmp/npmuserhome
+	# Add npmuser user
+	useradd -o -u "$PUID" -U -d /tmp/npmuserhome -s /bin/false npmuser || exit 1
 fi
+
+usermod -G "$PGID" npmuser || exit 1
+groupmod -o -g "$PGID" npmuser || exit 1
+# Home for npmuser
+mkdir -p /tmp/npmuserhome
+chown -R "$PUID:$PGID" /tmp/npmuserhome

docker/rootfs/etc/s6-overlay/s6-rc.d/prepare/90-banner.sh

@@ -3,17 +3,15 @@
 
 set -e
 
-echo
-echo "-------------------------------------
+echo "
+-------------------------------------
  _   _ ____  __  __
 | \ | |  _ \|  \/  |
 |  \| | |_) | |\/| |
 | |\  |  __/| |  | |
 |_| \_|_|   |_|  |_|
--------------------------------------"
-if [[ "$PUID" -ne '0' ]]; then
-	echo "User UID: $(id -u npmuser)"
-	echo "User GID: $(id -g npmuser)"
-	echo "-------------------------------------"
-fi
-echo
+-------------------------------------
+User ID:  $PUID
+Group ID: $PGID
+-------------------------------------
+"