nginx - 为什么我得到 502 Bad gateway 试图做反向代理子路径

Question

我正在尝试反向代理子路径，域https://raspberrypi.local工作正常，但https://raspberrypi.local/gogs/返回 502 Bad Gateway。

这是文件：/etc/nginx/sites-available/gogs
更新时间： 2016 年 12 月 10 日

server {
    listen 443 ssl;
    server_name raspberrypi.local;

    ssl_certificate /etc/ssl/localcerts/raspberrypi.local.crt;
    ssl_certificate_key /etc/ssl/localcerts/raspberrypi.local.key;

# taken out from location
# proxy_set_header X-Real-IP $remote_addr;

    location /gogs/ {
        proxy_pass http://localhost:3000/;
    }
}

# Redirect HTTP request to HTTPS

server {
    listen 80;
    server_name raspberrypi.local;
    return 301 https://$host$request_uri;
}

/home/git/gogs/log/gogs.log 表明

2016/09/12 17:35:40 [I] Git Version: 2.1.4
2016/09/12 17:35:40 [I] Run Mode: Production
2016/09/12 17:35:43 [I] Listen: https://0.0.0.0:3000/gogs