# Wird beim Start per envsubst nach /etc/nginx/conf.d/default.conf geschrieben.
map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
    listen 80;
    server_name _;
    return 301 https://$host:${HTTPS_PORT}$request_uri;
}

server {
    listen 443 ssl;
    http2 on;
    server_name _;

    ssl_certificate     /etc/nginx/certs/fullchain.pem;
    ssl_certificate_key /etc/nginx/certs/privkey.pem;
    ssl_protocols       TLSv1.2 TLSv1.3;
    ssl_session_cache   shared:SSL:1m;

    # Muss >= MAX_CLIP_MB des Servers sein (plus etwas Luft fuer die Verschluesselung)
    client_max_body_size ${NGINX_MAX_BODY};
    # Uploads/Downloads direkt durchreichen statt zwischenzuspeichern
    proxy_request_buffering off;
    proxy_buffering off;

    location / {
        proxy_pass http://netclip:8080;
        proxy_http_version 1.1;
        proxy_set_header Upgrade           $http_upgrade;
        proxy_set_header Connection        $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 https;
        # WebSocket-Verbindungen bleiben lange offen (Clients pingen alle 30 s)
        proxy_read_timeout 3600s;
        proxy_send_timeout 3600s;
    }
}