Merge pull request #116 from robert-will-brown/NetworkSpeed

_data/rules.yml

@@ -226,6 +226,11 @@ groups:
                 description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} transmit errors in the last five minutes.'
                 query: 'increase(node_network_transmit_errs_total[5m]) > 0'
                 severity: warning
+              - name: Host Network Interface Saturated
+                description: 'The network interface "{{ $labels.interface }}" on "{{ $labels.instance }}" is getting overloaded.'
+                query: '(rate(node_network_receive_bytes_total{device!~"^tap.*"}[1m]) + rate(node_network_transmit_bytes_total{device!~"^tap.*"}[1m])) / node_network_speed_bytes{device!~"^tap.*"} > 0.8'
+                severity: warning
+
 
       - name: Docker containers
         exporters: