I have deployed this docker container.
docker container run -d -p 8080:80 --name my-nginx2 --network my-net nginx:latest
When I do a curl localhost:8080, I am able to access it. However, when I type in my <public-address>:8080 it is not working. I cannot access it on the web browser.
I am running a red hat 8 ec2 instance on AWS. My security group looks like this. I am not sure if this should be something related with SG.
Let me know if you have any questions.
Thanks.
According to the image you shared, you are only allowing traffic on ports 80 and 22;
When you execute the docker run command with the -p :8080:80 option, you are basically telling your instance to listen on 8080 and forward the traffic to the container on port 80;
You have two options:
Start the container using the -p 80:80 option, hence port 80 is already allowed, then try to access your web-app in the browser at <instance-external-ip-address>:80
The second option is to add a firewall rule to allow ingress on port 8080 and then access your web-app in the browser at <instance-external-ip-address>:8080