upstream nextjs {
    server app:3000;
}

server {
    listen 80;
    server_name testbed.mk *.testbed.mk;

    location / {
        proxy_pass http://nextjs;
        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-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        set $subdomain "";
        if ($host ~* "^([a-z0-9-]+)\.testbed\.mk$") {
            set $subdomain $1;
        }

        proxy_set_header X-Subdomain $subdomain;
    }

    location /_next/static/ {
        proxy_pass http://nextjs;
        proxy_cache_valid 200 365d;
        add_header Cache-Control "public, immutable";
    }
}