I'm trying to do a reverse proxy with Nginx based on the URL. I want http://mydomain.example.com/client1/...
to be redirected to http://127.0.0.1:8193/...
. I have tried many ways, and none of them worked. Please note that the application can make redirections. These are the configuration files of my last solution :
default
server {
listen 80;
server_name mydomain.example.com;
location / {
set $instance none;
if ($request_uri ~ ^/(.*)/$) {
set $instance $1;
}
set $no_cookie true;
if ($http_cookie ~ "instance=([^;] +)(?:;|$)") {
set $instance $1;
set $no_cookie false;
}
if ($no_cookie = true) {
add_header Set-Cookie "instance=$instance;Domain=$host;Path=/";
rewrite ^ / break;
}
include instances.conf;
}
instances.conf
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_connect_timeout 90;
proxy_send_timeout 60;
# Installation of language packs, etc. can take a long time
proxy_read_timeout 10800;
if ($instance = client1) {
proxy_pass http://127.0.0.1:8193;
}
if ($instance = client2) {
proxy_pass http://127.0.0.1:8194
}
...
When the browser requests http://mydomain.example.com/client1/
, Nginx should set a cookie named instance
with the value client1
then redirect the traffic to the appropriate proxy. For subsequent queries, it should use this cookie to make redirection. The problem I have is it never sets the $instance
variable to client1
. Don't forget that the application has no idea of the prefix /client1
.
Do you have an idea? Do you know of a better solution?