I have a GCP compute engine instance where I've been trying to open several external ports. I am unable to connect to my static external IP and also unable to connect within the cloud shell using curl localhost:80 or localhost:443.
I have added multiple firewall rules which should allow access. Output of firewall rules list and nmap here https://imgur.com/a/mWgw2H2
I would expect to be able to make connections with all of these.
Edit: image with targets https://imgur.com/a/qZ2Dl7r