Question

How to deploy Go app alongside Nginx using Docker compose?

Hi,

I’m trying to follow this guide to deploy a Go app and Nginx using Docker Compose: https://www.digitalocean.com/community/tutorials/how-to-deploy-a-go-web-application-with-docker-and-nginx-on-ubuntu-18-04

The problem I am having is that my Go application is stuck restarting indefinitely - it doesn’t seem to launch successfully. Nginx and Proxy Companion are running successfully, however. Furthermore,when I go to my domain, which is specified in the docker-compose file for the Go app, I am able to get to an https secured 502 bad gateway. I think this means the docker container for the Go app is being created successfully, but the actual web server isn’t able to listen on port 80. I created all of the Docker/Docker-Compose files to match the tutorial exactly so I’m not sure what the issue is. If I build the Docker file for my go application in isolation, without docker-compose, I can build and run the server. It’s just when I try to to use docker-compose it gets stuck in the restarting status. Any thoughts?

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Hi there,

In case that you have another service listening on port 80 it could prevent the Nginx container from starting.

You can check that with the following command:

netstat -plant | grep 80

If you have Nginx installed on your host, you would need to stop it and disable it before you run the docker-compose up command.

Regards, Bobby