titan-iac/services/monitoring/grafana-dashboard-nodes.yaml

# services/monitoring/grafana-dashboard-nodes.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: grafana-dashboard-nodes
  labels:
    grafana_dashboard: "1"
data:
  atlas-nodes.json: |
    {
      "uid": "atlas-nodes",
      "title": "Atlas Nodes",
      "folderUid": "atlas-nodes",
      "editable": true,
      "panels": [
        {
          "id": 1,
          "type": "stat",
          "title": "Node count",
          "datasource": {
            "type": "prometheus",
            "uid": "atlas-vm"
          },
          "gridPos": {
            "h": 5,
            "w": 6,
            "x": 0,
            "y": 0
          },
          "targets": [
            {
              "expr": "count(kube_node_info)",
              "refId": "A"
            }
          ],
          "fieldConfig": {
            "defaults": {
              "color": {
                "mode": "palette-classic"
              },
              "mappings": [],
              "thresholds": {
                "mode": "absolute",
                "steps": [
                  {
                    "color": "rgba(115, 115, 115, 1)",
                    "value": null
                  },
                  {
                    "color": "green",
                    "value": 1
                  }
                ]
              },
              "unit": "none"
            },
            "overrides": []
          },
          "options": {
            "colorMode": "value",
            "graphMode": "area",
            "justifyMode": "center",
            "reduceOptions": {
              "calcs": [
                "lastNotNull"
              ],
              "fields": "",
              "values": false
            },
            "textMode": "value"
          }
        },
        {
          "id": 2,
          "type": "stat",
          "title": "Ready nodes",
          "datasource": {
            "type": "prometheus",
            "uid": "atlas-vm"
          },
          "gridPos": {
            "h": 5,
            "w": 6,
            "x": 6,
            "y": 0
          },
          "targets": [
            {
              "expr": "sum(kube_node_status_condition{condition=\"Ready\",status=\"true\"})",
              "refId": "A"
            }
          ],
          "fieldConfig": {
            "defaults": {
              "color": {
                "mode": "palette-classic"
              },
              "mappings": [],
              "thresholds": {
                "mode": "absolute",
                "steps": [
                  {
                    "color": "rgba(115, 115, 115, 1)",
                    "value": null
                  },
                  {
                    "color": "green",
                    "value": 1
                  }
                ]
              },
              "unit": "none"
            },
            "overrides": []
          },
          "options": {
            "colorMode": "value",
            "graphMode": "area",
            "justifyMode": "center",
            "reduceOptions": {
              "calcs": [
                "lastNotNull"
              ],
              "fields": "",
              "values": false
            },
            "textMode": "value"
          }
        },
        {
          "id": 3,
          "type": "stat",
          "title": "Control plane CPU avg",
          "datasource": {
            "type": "prometheus",
            "uid": "atlas-vm"
          },
          "gridPos": {
            "h": 5,
            "w": 6,
            "x": 12,
            "y": 0
          },
          "targets": [
            {
              "expr": "avg by (node) ((((1 - label_replace(rate(node_cpu_seconds_total{mode=\"idle\"}[5m]), \"internal_ip\", \"$1\", \"instance\", \"([^:]+):.*\")) * 100) * on (internal_ip) group_left(node) kube_node_info)) * on(node) group_left() kube_node_info{node=~\"titan-0a|titan-0b|titan-0c\"}",
              "refId": "A",
              "legendFormat": "{{node}}"
            }
          ],
          "fieldConfig": {
            "defaults": {
              "color": {
                "mode": "palette-classic"
              },
              "mappings": [],
              "thresholds": {
                "mode": "absolute",
                "steps": [
                  {
                    "color": "rgba(115, 115, 115, 1)",
                    "value": null
                  },
                  {
                    "color": "green",
                    "value": 1
                  }
                ]
              },
              "unit": "percent"
            },
            "overrides": []
          },
          "options": {
            "colorMode": "value",
            "graphMode": "area",
            "justifyMode": "center",
            "reduceOptions": {
              "calcs": [
                "lastNotNull"
              ],
              "fields": "",
              "values": false
            },
            "textMode": "value_and_name"
          }
        },
        {
          "id": 4,
          "type": "stat",
          "title": "Control plane RAM avg",
          "datasource": {
            "type": "prometheus",
            "uid": "atlas-vm"
          },
          "gridPos": {
            "h": 5,
            "w": 6,
            "x": 18,
            "y": 0
          },
          "targets": [
            {
              "expr": "avg by (node) (((label_replace((node_memory_MemTotal_bytes - node_memory_MemAvailable_bytes) / node_memory_MemTotal_bytes, \"internal_ip\", \"$1\", \"instance\", \"([^:]+):.*\") * 100) * on (internal_ip) group_left(node) kube_node_info)) * on(node) group_left() kube_node_info{node=~\"titan-0a|titan-0b|titan-0c\"}",
              "refId": "A",
              "legendFormat": "{{node}}"
            }
          ],
          "fieldConfig": {
            "defaults": {
              "color": {
                "mode": "palette-classic"
              },
              "mappings": [],
              "thresholds": {
                "mode": "absolute",
                "steps": [
                  {
                    "color": "rgba(115, 115, 115, 1)",
                    "value": null
                  },
                  {
                    "color": "green",
                    "value": 1
                  }
                ]
              },
              "unit": "percent"
            },
            "overrides": []
          },
          "options": {
            "colorMode": "value",
            "graphMode": "area",
            "justifyMode": "center",
            "reduceOptions": {
              "calcs": [
                "lastNotNull"
              ],
              "fields": "",
              "values": false
            },
            "textMode": "value_and_name"
          }
        },
        {
          "id": 5,
          "type": "timeseries",
          "title": "Node CPU",
          "datasource": {
            "type": "prometheus",
            "uid": "atlas-vm"
          },
          "gridPos": {
            "h": 9,
            "w": 24,
            "x": 0,
            "y": 5
          },
          "targets": [
            {
              "expr": "avg by (node) ((((1 - label_replace(rate(node_cpu_seconds_total{mode=\"idle\"}[5m]), \"internal_ip\", \"$1\", \"instance\", \"([^:]+):.*\")) * 100) * on (internal_ip) group_left(node) kube_node_info))",
              "refId": "A",
              "legendFormat": "{{node}}"
            }
          ],
          "fieldConfig": {
            "defaults": {
              "unit": "percent"
            },
            "overrides": []
          },
          "options": {
            "legend": {
              "displayMode": "table",
              "placement": "right",
              "calcs": [
                "last"
              ]
            },
            "tooltip": {
              "mode": "multi"
            }
          }
        },
        {
          "id": 6,
          "type": "timeseries",
          "title": "Node RAM",
          "datasource": {
            "type": "prometheus",
            "uid": "atlas-vm"
          },
          "gridPos": {
            "h": 9,
            "w": 24,
            "x": 0,
            "y": 14
          },
          "targets": [
            {
              "expr": "avg by (node) (((label_replace((node_memory_MemTotal_bytes - node_memory_MemAvailable_bytes) / node_memory_MemTotal_bytes, \"internal_ip\", \"$1\", \"instance\", \"([^:]+):.*\") * 100) * on (internal_ip) group_left(node) kube_node_info))",
              "refId": "A",
              "legendFormat": "{{node}}"
            }
          ],
          "fieldConfig": {
            "defaults": {
              "unit": "percent"
            },
            "overrides": []
          },
          "options": {
            "legend": {
              "displayMode": "table",
              "placement": "right",
              "calcs": [
                "last"
              ]
            },
            "tooltip": {
              "mode": "multi"
            }
          }
        },
        {
          "id": 7,
          "type": "timeseries",
          "title": "Root filesystem",
          "datasource": {
            "type": "prometheus",
            "uid": "atlas-vm"
          },
          "gridPos": {
            "h": 9,
            "w": 24,
            "x": 0,
            "y": 23
          },
          "targets": [
            {
              "expr": "avg by (node) (((1 - (label_replace(node_filesystem_avail_bytes{mountpoint=\"/\",fstype!~\"tmpfs|overlay\"} / node_filesystem_size_bytes{mountpoint=\"/\",fstype!~\"tmpfs|overlay\"}, \"internal_ip\", \"$1\", \"instance\", \"([^:]+):.*\"))) * 100) * on (internal_ip) group_left(node) kube_node_info)",
              "refId": "A",
              "legendFormat": "{{node}}"
            }
          ],
          "fieldConfig": {
            "defaults": {
              "unit": "percent"
            },
            "overrides": []
          },
          "options": {
            "legend": {
              "displayMode": "table",
              "placement": "right"
            },
            "tooltip": {
              "mode": "multi"
            }
          },
          "timeFrom": "7d"
        }
      ],
      "time": {
        "from": "now-12h",
        "to": "now"
      },
      "annotations": {
        "list": []
      },
      "schemaVersion": 39,
      "style": "dark",
      "tags": [
        "atlas",
        "nodes"
      ]
    }