In Nginx, there are some advanced scenarios that need to be dynamically forwarded to the disabled upstream based on the path parameter in url

Scenario 1

/ svr1 xxxx & # 63; yyy forward to svr1:8080 /xxxx? yyy

/ svr2 xxxx & # 63; yyy forward to svr2:8080 /xxxx? yyy

The configuration is as follows:

location ~* /(srv[1-9]+)/(.*)$ {
  allow all;
  proxy_pass http://$1/$2$is_args$args;
  proxy_set_header Host $host;
  proxy_set_header x-forwarded-for $forwarded_addr;
}

upstream srv1 {
   server srv1-ip:8080;
}

upstream srv2 {
   server srv2-ip:8080;
}

Scenario 2

There are 3 peer services under svc1, srv1,2,3, /svc1/xxxx? yyy to srv1/2/3:8 080/xxxx? yyy

svc2 has 3 peer services srv4,5,6, /svc2/xxxx? yyy to, svr4/5/6:8080 /xxxx? yyy

location ~* /(svc[1-9]+)/(.*)$ {
  allow all;
  proxy_pass http://$1/$1/$2$is_args$args;
  proxy_set_header Host $host;
  proxy_set_header x-forwarded-for $forwarded_addr;
}

upstream svc1 {
  server srv1:8080;
  server srv2:8080;
  server srv3:8080;
}

upstream svc2 {
  server srv3:8080;
  server srv4:8080;
  server srv5:8080;
}