Console logs not appearing and communication with Docker containers fails after building Next.js app as Docker image

[trongthienpc]

Summary

I am using Next.js version @rc(>15). When running locally on localhost, console.log works fine on both the server and client. However, after building the application into a Docker image, the console logs no longer appear, neither in the container logs nor in the browser console.

Additionally, this issue occurs when I try to communicate with other Docker containers. When running locally, Next.js can successfully send requests to other Docker containers. But when the app is built into a Docker container, there's no response (neither success nor error).

Any advice on how to resolve these issues?

Additional information

No response

Example

No response

[aniruddhaadak80]

Hey @trongthienpc ,

To address missing console logs and communication issues between Docker containers after building your Next.js app into a Docker image:

1. Console Logs Issue:

   • Ensure that NODE_ENV is set correctly. Production mode (NODE_ENV=production) might restrict certain console logs.
   • In Docker, check the logging settings. You may need to explicitly enable logs for your container. Try running with docker logs <container-id> to capture output.
   • Ensure console statements are not stripped during production builds by checking for any custom configuration affecting logging.

2. Inter-Container Communication:

   • Use Docker's internal networking. When referring to other containers, use container names instead of localhost. For example, if you're communicating with a service named api, refer to it as http://api:port rather than localhost.
   • Verify your docker-compose.yml (if using Docker Compose) to ensure all containers are on the same network.

3. Dockerfile Check:

   • Ensure ports are exposed correctly and check EXPOSE directives in your Dockerfile.
   • Also, verify any firewall rules or networking configurations that might restrict inter-container communication.

These steps should help diagnose and resolve console logging and Docker container communication issues.

Thanks .

[Hlosani-M]

I have the same issue @trongthienpc, how did you fix this?