Network exporter

Exporter that provides network conditions as metrics for prometheus

Ping

Measure round trip time and packet loss using ICMP pings

Describing deployments

Deployment is something that is deployed on one or many hosts

deployments:
  # deployment with id:'database' is deployed on 2 nodes
  database:
    hosts:
      node1:
        address: 192.168.0.1
      node2:
        address: 192.168.0.2
  # 'svc1' on single node
  svc1:
    hosts:
      node3:
        address: 192.168.0.3
  # 'svc2' on single node too
  svc2:
    hosts:
      node4:
        address: 192.168.0.4

Describing probes

Probe is measuring network conditions from source to target deployments

probes:
  # svc1 has 1 dependency on database,
  # so we create the probe with id:'svc1' that would ping from svc1 to database deployments hosts
  # finally it resolves to following pings 
  # 192.168.0.3 -> 192.168.0.1 and 192.168.0.2
  svc1: 
    source: svc1 
    targets: [database] 

  # svc 2 has dependencies on database and svc1,
  # so pings would be:
  # 192.168.0.4 -> 192.168.0.1, 192.168.0.2 and 192.168.0.3
  svc2:
    source: svc2
    targets: [database, svc1]

Provided metrics

network_exporter_rtt_seconds: Round trip time from source to target

network_exporter_sent_packets_total: Total sent packets from source to target

network_exporter_recv_packets_total: Total received packets

Calculating packet loss

Packet loss percent can be calculated as ((sent_packets_total - recv_packets_total) / sent_packets_total) * 100