内网不能访问,仅能通过 localhosts 访问

排查发现 项目配置了 spring.address=localhost, 导致无法通过内网ip 访问

去前缀

当项目使用 / 访问, 而nginx 已经有一个 /的localtion, 需要新的localtion 指向内网端口时,可以通过项目配置context-path与 location 一致, 也可以通过下面两种方式去除location匹配后的前缀,需要注意,项目的其他请求路径要使用相对路径, 不能开头加 /

一个种方案是proxy_pass后面加根路径/.

server {
    listen              80;
    server_name         abc.com;
    access_log  "pipe:rollback /data/log/nginx/access.log interval=1d baknum=7 maxsize=1G"  main;
    location ^~/user/ {
        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-NginX-Proxy true;
        proxy_pass http://user/;
    }
    location ^~/order/ {
        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-NginX-Proxy true;
        proxy_pass http://order/;
    }
}
^~/user/表示匹配前缀是user的请求，proxy_pass的结尾有/， 则会把/user/*后面的路径直接拼接到后面，即移除user.

另一种方案是使用rewrite

upstream user {
  server localhost:8089 weight=5;
}
upstream order {
  server localhost:8090 weight=5;
}
server {
    listen              80;
    server_name         abc.com;
    access_log  "pipe:rollback /data/log/nginx/access.log interval=1d baknum=7 maxsize=1G"  main;
    location ^~/user/ {
        proxy_set_header Host $host;
        proxy_set_header  X-Real-IP        $remote_addr;
        proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for;
        proxy_set_header X-NginX-Proxy true;
        rewrite ^/user/(.*)$ /$1 break;
        proxy_pass http://user;
    }
    location ^~/order/ {
        proxy_set_header Host $host;
        proxy_set_header  X-Real-IP        $remote_addr;
        proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for;
        proxy_set_header X-NginX-Proxy true;
        rewrite ^/order/(.*)$ /$1 break;
        proxy_pass http://order;
    }
}
注意到proxy_pass结尾没有/， rewrite重写了url。
关于rewrite
syntax: rewrite regex replacement [flag]
Default: —
Context: server, location, if