upstream gateway {
    server gateway-green:8081;
}

upstream tool-sms {
    server tool-sms-green:8082;
}

upstream tool-email {
    server tool-email-green:8083;
}

upstream tool-other {
    server tool-other-green:8084;
}

upstream tool-payment {
    server tool-payment-green:8085;
}

server {
    listen 8281;
    location / {
        proxy_pass http://gateway;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

server {
    listen 8282;
    location / {
        proxy_pass http://tool-sms;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

server {
    listen 8283;
    location / {
        proxy_pass http://tool-email;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

server {
    listen 8284;
    location / {
        proxy_pass http://tool-other;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

server {
    listen 8285;
    location / {
        proxy_pass http://tool-payment;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}