Fix network rules interpretation

pica-metrologie/vmalert-rules.yml

@@ -133,40 +133,40 @@ groups:
 - name: network
   rules:
   - alert: ReceiveHighErrors
-    expr: rate(node_network_receive_errs_total[2m]) / rate(node_network_receive_packets_total[2m]) > 0.01
+    expr: 100 * (rate(node_network_receive_errs_total[2m]) / rate(node_network_receive_packets_total[2m])) > 1
     for: "5m"
     labels:
       severity: warning
     annotations:
       summary: Network interface is reporting many receive errors
-      description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} receive errors in the last two minutes.'
+      description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }}% receive errors for 5 minutes.'
       dashboard: https://grafana.picasoft.net/d/QPF5l5uZa/network?var-node={{ $labels.instance }}
   - alert: SendHighErrors
-    expr: rate(node_network_transmit_errs_total[2m]) / rate(node_network_transmit_packets_total[2m]) > 0.01
+    expr: 100 * (rate(node_network_transmit_errs_total[2m]) / rate(node_network_transmit_packets_total[2m])) > 1
     for: "5m"
     labels:
       severity: warning
     annotations:
       summary: Network interface is reporting many transmit errors
-      description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} transmit errors in the last two minutes.'
+      description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }}% transmit errors for 5 minutes.'
       dashboard: https://grafana.picasoft.net/d/QPF5l5uZa/network?var-node={{ $labels.instance }}
   - alert: ReceiveHighDrop
-    expr: rate(node_network_receive_drop_total[2m]) / rate(node_network_receive_packets_total[2m]) > 0.01
+    expr: 100 * (rate(node_network_receive_drop_total[2m]) / rate(node_network_receive_packets_total[2m])) > 1
     for: "5m"
     labels:
       severity: warning
     annotations:
       summary: Network interface is reporting many receive drops
-      description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} receive drops in the last two minutes.'
+      description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }}% receive drops for 5 minutes.'
       dashboard: https://grafana.picasoft.net/d/QPF5l5uZa/network?var-node={{ $labels.instance }}
   - alert: SendHighDrop
-    expr: rate(node_network_transmit_drop_total[2m]) / rate(node_network_transmit_packets_total[2m]) > 0.01
+    expr: 100 * (rate(node_network_transmit_drop_total[2m]) / rate(node_network_transmit_packets_total[2m])) > 1
     for: "5m"
     labels:
       severity: warning
     annotations:
       summary: Network interface is reporting many transmit drops
-      description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} transmit drops in the last two minutes.'
+      description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }}% transmit drops for 5 minutes.'
       dashboard: https://grafana.picasoft.net/d/QPF5l5uZa/network?var-node={{ $labels.instance }}
 
 - name: services