Nginx proxy Pass Configuration remove prefix

When using nginx as a proxy, you can simply forward requests to the next service without stopping them.

For example, to access abc.com/appv2/a/ B .html, you must forward the request to localhost: 8088/appv2/A/B .html.

The simple configuration is as follows:

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;    }}

That is, Setproxy_passYou can. The request only replaces the domain name.

But in many cases, we need to forward to different services based on the prefix of the URL.

For example

Abc.com/user/profile.htmlresendUser ServiceLocalhost: 8089/profile.html

Abc.com/order/details.htmlresendOrder ServiceLocalhost: 8090/details.html

That is, the URL prefix is not required for downstream services unless the downstream service adds context-path, but we do not like to add this in many cases. If this prefix is removed during nginx forwarding.

One solution is to add the root path after proxy_pass. /.

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/Indicates that the matched prefix isuserThe end of proxy_pass is//user/*The following path is directly spliced to the back to remove the user.

Another solution is to use 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;    }}

Note that proxy_pass does not end/,rewriteThe URL is rewritten.

Rewrite

syntax: rewrite regex replacement [flag]Default: —Context: server, location, if

Nginx proxy Pass Configuration remove prefix