Cannot connect to localhost about cmc-csci143 HOT 1 CLOSED

short answer: you need to enable port forwarding, and connect through that port

long answer: The IP address 127.0.0.1 always refers to the current computer. This is confusing because there are 3 different computers running (your laptop, the lambda server, and the docker container), and each one of those computers will refer to itself as 127.0.0.1.

When you run flask on the container, the flask program will tell you it is running on 127.0.0.1, but you cannot connect to it through that IP address, because that IP address means something different on your computer. Instead, you need the docker-compose.yml file to connect port 5000 on the container to port $UID on the lambda server, and then you use port forwarding (-L in ssh or the putty option) to connect port 8080 on your laptop to port $UID on the lambda server. Then, you will connect to http://127.0.0.1:8080, and that will be redirected through the lambda server to your container.

from cmc-csci143.