关于Nginx中路由报错 no resolver defined to resolve localhost
drake
Posted on August 26, 2023
- 该问题是由动态解析造成的
- 比如下面的配置：
> 该路由规则
proxy_pass后面跟的是变量，当该位置是变量的时候Nginx会在每个请求中动态解析localhost, 而这就会导致resolver错误
location ~ ^/k8sapi(/(.*))?$ {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_redirect off;
proxy_pass https://localhost:6443/$2;
}
- 而如果是静态解析
- 比如下面的配置：
>
proxy_pass后面跟的是一个具体的值，该值会被硬编码到proxy_pass指令中，只会在Nginx启动的时候解析一次，并且缓存结果；那么这种方式就不会报错
location ~ ^/k8sapi(/(.*))?$ {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_redirect off;
proxy_pass https:localhost:6443/;
}
- How do I fix the problem?
Two scenarios:
- 1. Add a line to the routing rule
location ~ ^/k8sapi(/(.*))?$ {
resolver 127.0.0.1; # 添加这一行
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_redirect off;
proxy_pass https://localhost:6443/$2;
}
- 2、直接换成回环地址
https://127.0.0.1:6443/$2
💖 💪 🙅 🚩
drake
Posted on August 26, 2023
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