Add replaceIp function and use it to update IP address in restart.sh

src/aws/dependencies/replaceIp.sh

@@ -0,0 +1,19 @@
+replaceIp() {
+    FILE="/etc/tunnel"
+
+    if [ "$#" -ne 2 ]; then
+        echo "Usage: replace_ip OLD_IP NEW_IP"
+        return 1
+    fi
+
+    oldIp=$1
+    newIp=$2
+
+    if [ -f "$FILE" ]; then
+        sudo sed -i "s/$newIp/$oldIp/g" "$FILE"
+        echo "IP address has been successfully replaced."
+    else
+        echo "Error: File $FILE does not exist."
+        return 1
+    fi
+}

src/aws/restart.sh

@@ -18,6 +18,8 @@ function restart(){
         exit 1
     fi
 
+    oldPublicIp=$(getValueByAttribute $balloonName publicIp)
+
     aws ec2 start-instances --instance-ids $instanceId
 
     echo "get the new ip address. The procedure might take time for a while"
@@ -28,6 +30,5 @@ function restart(){
     echo "the new ip address is $publicIp"
     updateIPAddress $balloonName $publicIp
 
-    echo "open the new sshtunnel"
-	openSSHTunnel $publicIp $portConfigArray
+    replaceIp $oldPublicIp $publicIp
 }