Docker Community Forums

Share and learn in the Docker community.

Receiving Duplicate Outer Port '80/tcp' error even though Node doesn't show port is taken

(Eric Irwin) #1

I am deploying an NGINX container on one of my nodes, which I have done 100x the same way.

When I am trying it right now, I am being given the following error

  • Duplicated outer port ‘80/tcp’

The following images show the setup and the containers running on the node (none of which publishes 80).

Additionally, when I go to Azure (I usually host on AWS, but need to on Azure for this specifically) I can look at the ports exposed and it doesn’t show 80 is already taken.

(Amir20) #2

I also get the same error with haproxy. This is probably duplicate of Publishing haproxy ports causes duplicate ports