gzip_static  on;
gzip on;
gzip_min_length 50000;
gzip_proxied expired no-cache no-store private auth;
gzip_types
    application/atom+xml
    application/geo+json
    application/javascript
    application/x-javascript
    application/json
    application/ld+json
    application/manifest+json
    application/rdf+xml
    application/rss+xml
    application/vnd.ms-fontobject
    application/wasm
    application/x-web-app-manifest+json
    application/xhtml+xml
    application/xml
    font/eot
    font/otf
    font/ttf
    image/bmp
    image/svg+xml
    text/cache-manifest
    text/calendar
    text/css
    text/javascript
    text/markdown
    text/plain
    text/xml
    text/x-component
    text/x-cross-domain-policy;

upstream model {
    # Update to the cost model endpoint
    # Example: host.docker.internal:9003;
    server ${API_SERVER}:${API_PORT};
}

server {
    server_name _;
    root /var/www;
    index index.html;
    large_client_header_buffers 4 32k;
    add_header Cache-Control "must-revalidate";

    error_page 504 /custom_504.html;
    location = /custom_504.html {
        internal;
    }

    add_header Cache-Control "max-age=300";
    location / {
        root /var/www;
        index index.html index.htm;
        try_files $uri /index.html;
    }

    add_header ETag "1.96.0";
    listen ${UI_PORT};
    listen [::]:${UI_PORT};
    resolver 127.0.0.1 valid=5s;
    location /healthz {
        access_log /dev/null;
        return 200 'OK';
    }
    location /model/ {
        proxy_connect_timeout       180;
        proxy_send_timeout          180;
        proxy_read_timeout          180;
        proxy_pass http://model/;
        proxy_redirect off;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_set_header  X-Real-IP  $remote_addr;
        proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}