user  nginx;
worker_processes  auto;

events { worker_connections 1024; }

http {
  include       /etc/nginx/mime.types;
  default_type  application/octet-stream;
  sendfile        on;
  keepalive_timeout  65;
  gzip on;
  gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

  upstream api_upstream {
    server api:4000;
    keepalive 16;
  }

  server {
    listen 80;
    server_name _;

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

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

    location /api/ {
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "upgrade";
      proxy_set_header Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_read_timeout 60s;
      proxy_connect_timeout 5s;
      proxy_pass http://api_upstream;
    }

    location = /nginx_health {
      return 200 "ok";
      add_header Content-Type text/plain;
    }
  }
}