Question

我正在使用nginx配置我的node.js应用程序。它适用于http，但它不适用于https。当我尝试访问安全域时。我收到这个错误。

502 Bad Gateway
nginx/1.4.6 (Ubuntu)

这是我的nginx配置文件

    upstream node_app_dev {
        server 127.0.0.1:3000;
    }

    upstream node_app_production {
        server 127.0.0.1:3000;
    }

server {
    listen 80;
    server_name mydomain.com;
    access_log /var/log/nginx/dev.log;
    error_log /var/log/nginx/dev.error.log debug;

    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarder-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_pass http://node_app_dev;
        proxy_redirect off;
    }
}


server {
    listen 443 ssl;
    server_name mydomain.com;
    access_log /var/log/nginx/secure.log;
    error_log /var/log/nginx/secure.error.log debug;    

    ssl on;
    ssl_certificate certs/mycert.crt;
    ssl_certificate_key certs/mykey.key;

    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarder-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;        
        proxy_pass https://node_app_production;
        proxy_redirect off;

    }    
}

Answer 1

替换

>>> from operator import itemgetter
>>> list_ = [{'x':1,'y':2},{'x':1,'y':1},{'x':3,'y':3}]
>>> sorted(list_,key=itemgetter('x','y'))
[{'x': 1, 'y': 1}, {'x': 1, 'y': 2}, {'x': 3, 'y': 3}]

带

proxy_pass https://node_app_production;

重新启动nginx，你应该全部设置好。见nginx proxy pass Node, SSL?

Answer 2

我已通过2个步骤解决了该问题。

检查/var/log/nginx/error.log

connect() failed (111: Connection refused) while connecting to upstream, client: *.*.*.*, server: *.*.*.*, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8000/", host: "*.*.*.*"

即使我在nginx conf文件中将上游设置为127.0.0.1:8000，上游仍然是127.0.0.1:3000。

将{{1}中的server 127.0.0.1:8000替换为server 127.0.0.1:3000，然后重新启动nginx。

/etc/nginx/conf.d/virtual.conf

server {
    listen       80;
    server_name  SERVER_IP_ADDRESS;

    location / {
        proxy_pass http://127.0.0.1:3000;
    }
}

最后，它没有502错误。

node.js应用程序与nginx 502错误的网关错误

2 个答案: