logical.nix

let
  nginxCfg = {
    enable = true;
    config = ''
      events {
        worker_connections 1024;
      }
      http {
        server {
          listen 0.0.0.0:80;
          server_name qoeifs;

          location / {
            proxy_pass http://127.0.0.1:8080/;
            proxy_set_header  Host            $host;
            proxy_set_header  X-Real-IP       $remote_addr;
            proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
          }
        }
      }
    '';
  };

in {
  network.description = "Qoeifs network";
  network.enableRollback = true;
  qoeifs =
    { config, pkgs, ... }:
    let
      nodemon = pkgs.nodePackages.nodemon;
    in
      { 
        environment.systemPackages = [ nodemon ];
        service = {
          nginx = nginxCfg;
          mongodb = {
            enable = true;
          };
        };
      };
}

physical.nix

let
  region = "ap-southeast-1";
  accessKeyId = "dev";

  ec2 =
    { resources, ... }:
    { deployment.targetEnv = "ec2";
      deployment.ec2.accessKeyId = accessKeyId;
      deployment.ec2.region = region;
      deployment.ec2.instanceType = "t2.micro";
      deployment.ec2.keyPair = resources.ec2KeyPairs.my-key-pair;
      #deployment.ec2.privateKey = "/home/rizilab/Downloads/app.pem";
    };

in
{
  qoeifs = ec2;
  resources.ec2KeyPairs.my-key-pair =
    { inherit region accessKeyId; };
}