(转)Nginx代理proxy pass配置去除location路径前缀

我们在使用Nginx做代理的时候,可以简单的直接把请求原封不动的转发给下一个服务。

比如,访问abc.com/appv2/a/b.html, 要求转发到localhost:8088/appv2/a/b.html

简单配置如下:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
upstream one {
server localhost:8088 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 / {
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://one;
}
}

即,设置proxy_pass即可。请求只会替换域名。

但很多时候,我们需要根据url的前缀转发到不同的服务。

比如
abc.com/user/profile.html转发到 用户服务localhost:8089/profile.html

abc.com/order/details.html转发到 订单服务 localhost:8090/details.html

即,url的前缀对下游的服务是不需要的,除非下游服务添加context-path, 但很多时候我们并不喜欢加这个。如果Nginx转发的时候,把这个前缀去掉就好了。

  • 一个种方案是proxy_pass后面加根路径 /
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    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
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    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。

对于文件映射也可以使用这两种方式,如下:

1
2
3
4
5
location ^~ /dafile {  
#rewrite ^/dafile/(.*)$ /$1 last;
proxy_pass http://172.31.8.168:8141/;//文件服务器nginx路径
#return 7;
}

参考资料

分享到