Choose port during install

check_process

@@ -5,6 +5,7 @@
 		path="/path"	(PATH)
 		admin="john"	(USER)
 		is_public=1	(PUBLIC|public=1|private=0)
+		port="3000" 	(PORT)
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
@@ -20,7 +21,7 @@
 		incorrect_path=1
 		corrupt_source=0
     		fail_download_source=0
-		port_already_use=0
+		port_already_use=1
     		final_path_already_use=0
 ;;; Levels
 	Level 1=auto

conf/nginx_root.conf

@@ -3,7 +3,7 @@ location / {
     proxy_set_header X-Forwarded-Server $host;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header X-WEBAUTH-USER $remote_user;
-    proxy_pass http://127.0.0.1:3000;
+    proxy_pass http://127.0.0.1:YNH_WWW_PORT;
     proxy_http_version 1.1;
     proxy_pass_request_headers on;
     proxy_set_header Connection "keep-alive";

conf/nginx_sub_dir.conf

@@ -14,7 +14,7 @@ location ~ YNH_WWW_PATH/(?<ndpath>.*) {
     proxy_pass_request_headers on;
     proxy_set_header Connection "keep-alive";
     proxy_store off;
-    proxy_pass http://127.0.0.1:3000/$ndpath$is_args$args;
+    proxy_pass http://127.0.0.1:YNH_WWW_PORT/$ndpath$is_args$args;
 
     gzip on;
     gzip_proxied any;

manifest.json

@@ -43,6 +43,15 @@
                 "example": "/grafana",
                 "default": "/grafana"
             },
+	    {
+                "name": "port",
+                "ask": {
+                    "en": "Choose a port for your server. Let as default if you don't want to change it",
+                    "fr": "Entrez un port pour votre serveur. Laissez par défaut si vous ne voulez pas en changer"
+                },
+                "example": "3000",
+                "default": "3000"
+	    },
             {
                 "name": "admin",
                 "type": "user",

scripts/_common.sh

@@ -103,3 +103,19 @@ ynh_remove_app_dependencies () {
     dep_app=${app//_/-}	# Replace all '_' by '-'
     ynh_package_autoremove ${dep_app}-ynh-deps	# Remove the fake package and its dependencies if they not still used.
 }
+
+# Find a free port and return it
+#
+# example: port=$(ynh_find_port 8080)
+#
+# usage: ynh_find_port begin_port
+# | arg: begin_port - port to start to search
+ynh_find_port () {
+	port=$1
+	test -n "$port" || ynh_die "The argument of ynh_find_port must be a valid port."
+	while netcat -z 127.0.0.1 $port       # Check if the port is free
+	do
+		port=$((port+1))	# Else, pass to next port
+	done
+	echo $port
+}

scripts/install

@@ -13,6 +13,7 @@ source ./_common.sh
 # Retrieve arguments
 domain=$YNH_APP_ARG_DOMAIN
 path=$YNH_APP_ARG_PATH
+port=$(ynh_find_port $YNH_APP_ARG_PORT)
 admin=$YNH_APP_ARG_ADMIN
 is_public=$YNH_APP_ARG_IS_PUBLIC
 
@@ -79,6 +80,8 @@ sudo systemctl start influxdb
 sudo cp ../conf/ldap.toml /etc/grafana
 
 grafana_conf="/etc/grafana/grafana.ini"
+# Set final port
+sudo sed -i "/^\[server\]$/,/^\[/ s@;http_port = .*@http_port = $port@" $grafana_conf
 # Set final URL
 sudo sed -i "/^\[server\]$/,/^\[/ s@;root_url = .*@root_url = https://$domain$path@" $grafana_conf
 # Disable check for updates
@@ -138,6 +141,7 @@ else
 fi
 
 sed -i "s@YNH_WWW_PATH@$path@g" $nginx_conf
+sed -i "s@YNH_WWW_PORT@$port@g" $nginx_conf
 sudo cp $nginx_conf /etc/nginx/conf.d/$domain.d/$app.conf
 
 # If app is public, add url to SSOWat conf as skipped_uris