nginx 映射 w/ 服务器指令。转发 http -> https

Question

我有 7 个服务。我希望它们自动转发 http->https。

我正在尝试这个，但是没有用：

map $http_host $backend {
  apples.example.com        http://127.0.0.1:3006;
  oranges.example.com       http://127.0.0.1:3000;
  bananas.example.com       http://127.0.0.1:3010;
  pears.example.com         http://127.0.0.1:3012;
  dragonfruit.example.com   http://127.0.0.1:3014;
  peaches.example.com       http://127.0.0.1:3002;
  tomatos.example.com       http://127.0.0.1:3016;
}


# All services (except button) forward HTTP -> HTTPS
server {
    listen 80;
    return 307 https://$http_host$request_uri;
}

我误解了一些东西，因为其中一项服务不匹配。

http://apples.example.com正在转发至https://peaches.example.com

我正在运行这个来测试：

sudo service nginx restart && wget http://apples.example.com/ --no-check-certificate

它又回来了：

--2016-10-05 20:07:37--  http://apples.example.com/
Resolving expert-dev.bigsmall.io (apples.example.com)... 127.0.0.1
Connecting to expert-dev.bigsmall.io (apples.example.com)|127.0.0.1|:80... connected.
HTTP request sent, awaiting response... 307 Temporary Redirect
Location: https://peaches.example.com [following]
--2016-10-05 20:07:37--  https://peaches.example.com/

nginx 版本：nginx/1.10.0（Ubuntu）

有什么建议么？