server {
    listen 443 ssl;
    server_name wevdav.nikita-c.ru;

    ssl_certificate     /etc/letsencrypt/live/wevdav.nikita-c.ru/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/wevdav.nikita-c.ru/privkey.pem;

    root /var/www/webdav-ui;
    index index.html;

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

    location /webdav/ {
        proxy_pass https://russia.crazedns.ru/webdav/;

        proxy_set_header Host russia.crazedns.ru;
        proxy_set_header Authorization $http_authorization;
        proxy_set_header Depth $http_depth;
        proxy_set_header Destination $http_destination;
        proxy_set_header Overwrite $http_overwrite;
        proxy_set_header If $http_if;

        client_max_body_size 0;
        proxy_request_buffering off;
        proxy_buffering off;
    }
}

server {
    listen 80;
    server_name wevdav.nikita-c.ru;

    location /.well-known/acme-challenge/ {
        root /var/www/letsencrypt;
        allow all;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}