Nginx代理proxy pass配置去除前缀的实现
目录
- 一个种方案是proxy_pass后面加根路径/.
- 另一种方案是使用rewrite
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:
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/.
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
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