don't start any server processes in sailing init.d script if no SERVER_NAME variable is provided in user data

configuration/sailing

@@ -61,13 +61,13 @@ start_servers() {
 	    echo "This is a first-time boot. EC2 user data is evaluated for potential application deployment and configuration; reverse proxy entries may be created, and applications are launched." >>/var/log/sailing.err
 	    FIRST_SERVER=$( eval $( ${EC2_METADATA_CMD} -d | sed -e 's/^user-data: //' ); echo $SERVER_NAME )
 	    if [ "${FIRST_SERVER}" = "" ]; then
-	      echo "No SERVER_NAME provided; defaulting to \"server\" as the server directory name" >>/var/log/sailing.err
-	      FIRST_SERVER=server
+	      echo "No SERVER_NAME provided; not configuring/starting any application processes" >>/var/log/sailing.err
+	    else
+	      echo "Server to configure and start: ${FIRST_SERVER}" >>/var/log/sailing.err
+	      configure_and_start_server "${FIRST_SERVER}"
+	      create_basic_httpd_config "${FIRST_SERVER}"
+	      reload_httpd
 	    fi
-            echo "Server to configure and start: ${FIRST_SERVER}" >>/var/log/sailing.err
-	    configure_and_start_server "${FIRST_SERVER}"
-	    create_basic_httpd_config "${FIRST_SERVER}"
-	    reload_httpd
 	    echo 1 >"${REBOOT_INDICATOR}"
 	  fi
 	fi