How do I access a server on localhost with nginx docker container?

Question

I\'m trying to use a dockerized version of nginx as a proxy server for my node (ExpressJS) application. Without any configuration to nginx and publishing port 80 for the con

Answer 1

On linux, this works for me:

In the docker-compose.yml, mount an entrypoint script into the nginx container:

  nginx:
    image: nginx:1.19.2
    # ...
    volumes:
      - ./nginx-entrypoint.sh:/docker-entrypoint.d/nginx-entrypoint.sh:ro

The contents of the entrypoint map a local address to the host local address.

apt update
apt install iproute2 -y
echo "`ip route | awk '/default/ { print $3 }'`\tdocker.host.internal" >> /etc/hosts

Then, instead of using localhost inside the container, you can use docker.host.internal.