nixos/hosts/vm/victoriametrics/rules/bird.nix

{ critical, warning, ... }:

{
  records."bird:protocol_up:bgp_all".expr = ''
    label_replace(
      bird_protocol_up{proto="BGP"},
      "group", "$1",
      "instance", "^([^0-9\\.]+)-[0-9]+.*"
    )
  '';

  # FIXME: sessions en cours d'installation, pas encore monitorées
  records."bird:protocol_up:bgp".expr = ''
    bird:protocol_up:bgp_all
    unless
    bird:protocol_up:bgp_all{
      group="edge",
      name=~"^(viarezo|isp[12]|rezel)[46]$"
    }
  '';

  # Sessions qui ne sont volontairement pas redondées
  # au sein d'un groupe
  records."bird:protocol_up:bgp:non_redundant".expr = ''
    bird:protocol_up:bgp{
      group="edge",
      name=~"^(oti|crans|legacy|edge)[46]$"
    }
  '';

  # Sessions qui le sont
  records."bird:protocol_up:bgp:redundant".expr = ''
    bird:protocol_up:bgp
    unless
    bird:protocol_up:bgp:non_redundant
  '';

  alerts.BirdBGPRedundancyDegraded = {
    expr = ''
      (
        count by (group, name) (
          bird:protocol_up:bgp:redundant{state="Established"}
        ) + (
          count by (group, name) (
            bird:protocol_up:bgp:redundant{state!="Established"} * 0
          )
        )
      ) < 2
    '';
    for = "0m";
    labels = warning;
    annotations = {
      Session = "{{ $labels.name }}";
      Count = "{{ $value }}";
      Group = "{{ $labels.group }}";
    };
  };

  alerts.BirdBGPDown = {
    expr = ''
      (
        count by (group, name) (
          bird:protocol_up:bgp{state="Established"}
        ) + (
          count by (group, name) (
            bird:protocol_up:bgp{state!="Established"} * 0
          )
        )
      ) == 0
    '';
    for = "0m";
    labels = critical;
    annotations = {
      Session = "{{ $labels.name }}";
      Group = "{{ $labels.group }}";
    };
  };

  # TODO: warning pour redondant ?
  alerts.BirdBGPNoExportedPrefixRedundant = {
    expr = ''
      bird_protocol_prefix_export_count{
        export_filter!="REJECT",
      } * on (instance, name) group_left (group) (
        bird:protocol_up:bgp:redundant{state="Established"}
      ) == 0
    '';
    for = "0m";
    labels = critical;
    annotations = {
      Session = "{{ $labels.name }}";
      Group = "{{ $labels.group }}";
    };
  };

  alerts.BirdBGPNoImportedPrefixRedundant = {
    expr = ''
      bird_protocol_prefix_import_count{
        import_filter!="REJECT",
      } * on (instance, name) group_left (group) (
        bird:protocol_up:bgp:redundant{state="Established"}
      ) == 0
    '';
    for = "0m";
    labels = critical;
    annotations = {
      Session = "{{ $labels.name }}";
      Group = "{{ $labels.group }}";
    };
  };

  alerts.BirdBGPNoExportedPrefixNonRedundant = {
    expr = ''
      sum by (group) (
        bird_protocol_prefix_export_count{
          export_filter!="REJECT",
        } * on (instance, name) group_left (group) (
          bird:protocol_up:bgp:non_redundant{state="Established"}
        )
      ) == 0
    '';
    for = "0m";
    labels = critical;
    annotations = {
      Session = "{{ $labels.name }}";
      Group = "{{ $labels.group }}";
    };
  };

  alerts.BirdBGPNoImportedPrefixNonRedundant = {
    expr = ''
      sum by (group) (
        bird_protocol_prefix_import_count{
          import_filter!="REJECT",
        } * on (instance, name) group_left (group) (
          bird:protocol_up:bgp:non_redundant{state="Established"}
        )
      ) == 0
    '';
    for = "0m";
    labels = critical;
    annotations = {
      Session = "{{ $labels.name }}";
      Group = "{{ $labels.group }}";
    };
  };

  alerts.BirdOSPFNeighboursChange = {
    expr = ''
      changes(bird_ospf_neighbor_count[5m]) > 0
      or changes(bird_ospfv3_neighbor_count[5m]) > 0
    '';
    for = "0m";
    labels = warning;
  };

  alerts.BirdOSPFDown = {
    expr = "bird_ospf_running == 0";
    for = "0m";
    labels = critical;
    annotations.Instance = "{{ $labels.name }}";
  };
}