netdata-fping.nix

security.wrappers.fping = {
  source = "${pkgs.fping.out}/bin/fping";
  capabilities = "cap_net_raw+ep";
};

services.netdata = {
  enable = true;
  configText = ''
  [global]
  config directory = /etc/netdata
  plugins directory = ${pkgs.netdata}/libexec/netdata/plugins.d
  '';
};
systemd.services.netdata.path = [ pkgs.gawk pkgs.curl ];

environment.etc."netdata/fping.conf".text = ''
  # uncomment the following line - it should already be there
  fping="/run/wrappers/bin/fping"

  # set here all the hosts you need to ping
  # I suggest to use hostnames and put their IPs in /etc/hosts
  hosts="nr1.mad.hubns.net petit.hubns.net"

  # override the chart update frequency - the default is inherited from netdata
  #update_every=1

  # time in milliseconds (1 sec = 1000 ms) to ping the hosts
  # 200 = 5 pings per second
  ping_every=200

  # other fping options - these are the defaults
  fping_opts="-R -b 56 -i 1 -r 0 -t 5000"
'';

Screenshot 2017-10-17 13.06.46.png