Docker Reverse Proxy

About

This solutions is used to bind multiple domains in specific port to docker contained applications, making it possible to have multiple containers running on different ports but responding to a standard port such as 80 for example.

How to use

In this solution we use the "docker-compose" tool. To do this work just run the command below and add your host domain to "/etc/hosts":

    docker-compose up

Create Your Own Reverse Proxy

The settings used by docker-compose are located inside the file "docker-compose.yml".

You can customise "docker-compose.yml" and create according to your need.

Below is an example of "docker-compose.yml" using reverse proxy.

version: '2'

services:
  nginx-proxy:
    image: jwilder/nginx-proxy
    ports:
      - "80:80"
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock
      - ./conf/my_proxy.conf:/etc/nginx/conf.d/my_proxy.conf:ro

  webapp1:
    image: 'wordpress'
    container_name: 'blog1'
    expose:
      - "81"
    environment:
      - "VIRTUAL_HOST=teste.local"
    links:
      - "nginx-proxy"

References

• https://blog.florianlopes.io/host-multiple-websites-on-single-host-docker/
• https://www.digitalocean.com/community/questions/how-to-bind-multiple-domains-ports-80-and-443-to-docker-contained-applications
• https://www.digitalocean.com/community/tutorials/docker-explained-how-to-containerize-and-use-nginx-as-a-proxy