prometheus: Use openwrt domain name instaed of IP address.

Author: wigust

infrastructure/base/kube-prometheus-stack/grafana/dashboards/network-interfaces/network-interfaces-dashboard.json

@@ -352,7 +352,7 @@
           },
           "editorMode": "code",
           "exemplar": true,
-          "expr": "sum by(device, instance) (rate(node_network_receive_bytes_total{instance=\"192.168.0.253:9100\"}[2m])) * 8",
+          "expr": "sum by(device, instance) (rate(node_network_receive_bytes_total{instance=\"openwrt.openwrt:9100\"}[2m])) * 8",
           "interval": "",
           "legendFormat": "incoming {{device}}",
           "range": true,
@@ -365,7 +365,7 @@
           },
           "editorMode": "code",
           "exemplar": true,
-          "expr": "sum by(device, instance) (rate(node_network_transmit_bytes_total{instance=\"192.168.0.253:9100\"}[2m])) * 8",
+          "expr": "sum by(device, instance) (rate(node_network_transmit_bytes_total{instance=\"openwrt.openwrt:9100\"}[2m])) * 8",
           "hide": false,
           "interval": "",
           "legendFormat": "outgoing {{device}}",
@@ -471,7 +471,7 @@
           },
           "editorMode": "code",
           "exemplar": true,
-          "expr": "sum by(device, instance) (rate(node_network_receive_packets_total{instance=\"192.168.0.253:9100\"}[2m])) * 8",
+          "expr": "sum by(device, instance) (rate(node_network_receive_packets_total{instance=\"openwrt.openwrt:9100\"}[2m])) * 8",
           "interval": "",
           "legendFormat": "incoming {{device}}",
           "range": true,
@@ -484,7 +484,7 @@
           },
           "editorMode": "code",
           "exemplar": true,
-          "expr": "sum by(device, instance) (rate(node_network_transmit_packets_total{instance=\"192.168.0.253:9100\"}[2m])) * 8",
+          "expr": "sum by(device, instance) (rate(node_network_transmit_packets_total{instance=\"openwrt.openwrt:9100\"}[2m])) * 8",
           "hide": false,
           "interval": "",
           "legendFormat": "outgoing {{device}}",

infrastructure/cluster1/kube-prometheus-stack/values.yaml

@@ -42,7 +42,7 @@ prometheus:
         - vm1.wugi.info:9100
         - vm2.wugi.info:9100
         - notebook.wugi.info:9100
-        - 192.168.0.253:9100
+        - openwrt.openwrt:9100
         - vm-guix-datavolume.guix:9100
       scrape_interval: 5s
       job_name: node