nginx:reverse-proxy

nginx.conf

# example nginx config
# ------------------------------------------------------------------------------
# serve static files from volume mounted at  /public
# serve backend api expsosed by container "backend" on port 5000
# ------------------------------------------------------------------------------

user nginx;
worker_processes 1;

events {
  worker_connections 1024;
}

http {
  include /etc/nginx/mime.types;
  client_max_body_size 100m;

  upstream backend {
    server backend:5000;
  }

  server {
    listen 80;
    charset utf-8;

    root /public/;
    index index.html;

    # client
    location / {
      try_files $uri $uri/ @rewrites;
    }

    location @rewrites {
      rewrite ^(.+)$ /index.html last;
    }

    # backend reverse-proxy
    location ~ ^/api/?(.*)$ {
      proxy_redirect off;
      proxy_pass http://backend/$1$is_args$args;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
    }
  }
}