{ lib, buildGoModule, fetchFromGitHub }:

buildGoModule rec {
  pname = "do-agent";
  version = "3.5.6";

  src = fetchFromGitHub {
    owner = "digitalocean";
    repo = "do-agent";
    rev = "${version}";
    sha256 = "1gl034cslqa30fqy2p9rymgx398s1rcgbmfvzk5zjlrw47327k8i";
  };

  buildFlagsArray = ''
    -ldflags=
      -X main.version=${version}
  '';

  modSha256 = "164bwqg996097db399j7lar6gj9xpshjdmyapvzg7zh655xlkf3d";

  meta = with lib; {
    description = "DigitalOcean droplet system metrics agent";
    longDescription = ''
      do-agent is a program provided by DigitalOcean that collects system
      metrics from a DigitalOcean Droplet (on which the program runs) and sends
      them to DigitalOcean to provide resource usage graphs and alerting.
    '';
    homepage = "https://github.com/digitalocean/do-agent";
    license = licenses.asl20;
    maintainers = with maintainers; [ yvt ];
    platforms = platforms.linux;
  };
}