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http {
    upstream app_servers {
        server 127.0.0.1:3000;
        server 127.0.0.1:3001;
        server 127.0.0.1:3002;
    }

    server {
        listen 80;

        location / {
            proxy_pass http://app_servers;
        }
    }
}

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module.exports = {
  apps : [
    {
      name      : "app",
      script    : "app.js",
      instances : "max",
      exec_mode : "cluster"
    }
  ]
}

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server {
    listen 80;

    location / {
        proxy_pass http://backend;
    }

    location /status {
        stub_status on;
        allow 127.0.0.1;
        deny all;
    }
}

upstream backend {
    server backend1.example.com;
    server backend2.example.com;
    server backend3.example.com;
}

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