Docker container how to to access local host services despite correct network configuration
I'm confused about I've been struggling with this for a few days now and could really use some help... I'm working on a project and hit a roadblock. I'm running a Docker container that needs to access a local service running on my host machine, specifically a Node.js application listening on port 3000. I have set up my Docker container with the following command to ensure it can access the host network: ```bash docker run --network host my-node-app ``` However, when I try to access `http://localhost:3000` from within the container, I receive a `ECONNREFUSED` behavior, indicating that the connection is being refused. I've verified that the Node.js application is indeed running and accessible from the host itself. I also tried using the IP address of the host machine instead of `localhost`, but that didn't change anything. Additionally, I confirmed that there are no firewall rules blocking the connection. My Docker version is 20.10.7, and I'm on a Linux-based system (Ubuntu 20.04). As a workaround, I even tried specifying the host's IP address directly in my app's configuration, but it still doesn't work. The container is running in a separate user namespace. Could this be causing the scenario, or is there something I'm missing in my Docker configuration? Any insights or suggestions would be greatly appreciated! This is part of a larger application I'm building. I recently upgraded to Javascript 3.9. Any help would be greatly appreciated! My development environment is Ubuntu 22.04. Could someone point me to the right documentation?