server {
    listen 80;
    server_name _;

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

    # Docker's embedded DNS. Without re-resolving at request time, nginx caches the
    # api container's IP from startup and keeps returning 502 ("no live upstreams")
    # after the api container restarts with a new IP.
    resolver 127.0.0.11 valid=10s ipv6=off;

    location /api/ {
        set $api_upstream http://goldbank-api:3000;
        proxy_pass $api_upstream$request_uri;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

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

    location ~* \.(?:ico|css|js|gif|jpe?g|png|woff2?|eot|ttf|svg)$ {
        expires 6M;
        access_log off;
        add_header Cache-Control "public";
    }
}