flow setup. not tested yet

setup.sh

@@ -59,6 +59,14 @@ Options:
 EOF
 }
 
+show_allowed_apps () {
+    cat <<EOF
+Supported apps:
+    - socks_shop
+
+EOF
+}
+
 while [ "$#" -gt 0 ]; do
     case "$1" in
         -h|--help)
@@ -110,8 +118,7 @@ else
             install_sock_shop
             ;;
         *)
-            echo "Only following apps allowed"
-            echo "- sock_shop"
+            show_allowed_apps
             exit 1
             ;;
     esac