Nginx 跳转HTTP到HTTPS

Syntax

if ($host ~* ^(example\.com|www\.example\.com)$ ){

  rewrite  ^/(.*)$  https://example.com/$1  permanent;

}

OR better use the following rewrite:

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

Or use new syntax (recommended):

return        301 https://$server_name$request_uri;