nginx.conf

events {
  worker_connections  4096;
}

http {
  include /etc/nginx/mime.types;

  server {
    listen 80;
    server_name pizza-sync.com;

    root /usr/share/nginx/html;
    index index.html;

    location / {
      try_files $uri /index.html;
    }

    location ~ \.css {
      add_header Content-Type text/css;
    }

    location /initial-state {
      proxy_pass http://pizza-sync-api:3000;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection 'upgrade';
      proxy_set_header Host $host;
      proxy_cache_bypass $http_upgrade;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    location /socket.io/ {
      proxy_pass http://pizza-sync-api:3000;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "Upgrade";
    }

    location ~* .(jpg|jpeg|png|gif|ico|css|js)$ {
      expires 1d;
    }
  }
}