modified as userdata script, finishing up part-1

Project-1/Part-1/instance_run

@@ -1,6 +1,9 @@
 #!/bin/bash
+# https://stackoverflow.com/a/71648116/7630441
+sudo -u ubuntu -i <<'EOF'
+
 # initializing instance
-cd /home/ubuntu
+cd ~
 sudo apt update
 sudo apt upgrade -y
 
@@ -21,3 +24,5 @@ npm i
 # Start
 pm2 start npm --name webTier -- run prod
 pm2 save
+
+EOF