upstream backend {
127.127.0.1:2000;
127.127.0.2:2000 max_fails ...;
}
server {
proxy_pass https://backend;
}
server {
listen 127.127.0.1:2000;
location / {
proxy_pass https://server.com.one;
}
}
server {
listen 127.127.0.2:2000;
location / {
proxy_pass https://server.com.two;
}
}