无法通过 nginx 将 http:// 重定向到 https://

Question

大家好，

我在 Ubuntu 实例上设置了一个 Nginx Web 服务器。我已将 /etc/nginx/sites-enabled/default 文件配置如下：

    server {
            listen 80;                             #listen IPv4
            listen [::]:80;                        #listen IPv6
            server_name my.domain.de;
            return 301 https://$host$request_uri;   #redirect to https://
    }


    server {
            listen 443 ssl spdy;                   #listen IPv4
            listen [::]:443 ssl spdy;              #listen IPv6

            error_log /var/log/nginx/rocketchat_error.log;
            ssl_certificate /etc/letsencrypt/live/my.domain.de/fullchain.pem; # managed by Certbot
            ssl_certificate_key /etc/letsencrypt/live/my.domain.de/privkey.pem; # managed by Certbot
            ssl_dhparam /etc/nginx/dhparams.pem;
            ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
            ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESG$
            ssl_prefer_server_ciphers on;
            ssl_session_cache shared:SSL:20m;
            ssl_session_timeout 180m;

            location / {
                    proxy_pass http://my.domain.de:3000/;
                    proxy_http_version 1.1;
                    proxy_set_header Upgrade $http_upgrade;
                    proxy_set_header Connection "upgrade";
                    proxy_set_header Host $http_host;
                    proxy_set_header X-Real-IP $remote_addr;
                    proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;
                    proxy_set_header X-Forward-Proto http;
                    proxy_set_header X-Nginx-Proxy true;
                    proxy_redirect off;
            }
    }

我还通过 http{} 下的 /etc/nginx/nginx.conf 中包含了 /etc/nginx/sites-enabled/default 文件

include /etc/nginx/sites-enabled/default;

我也尝试过

rewrite ^ https://$host$request_uri? permanent;

与

retrun 301 https://my.domain.de$request_uri;

以及任何其他可能的变体。

任何帮助，将不胜感激。

提前致谢

西蒙