Grafana dashboard: 1 Kubernetes All-in-one Cluster Monitoring KR(v1.26.0)
Description: This dashboard is the education purpose for the Grafana panel and other functions. Thus it cannot be guaranteed for other environment. 

# 쿠버네티스 올인원 모니터링 대시보드
## **제작자**
- ✔️[Hoon Jo](https://github.com/sysnet4admin)
- ✔️[Seongju Moon](https://github.com/seongjumoon)
- ✔️[Gnu Shim](https://github.com/gnu-gnu)

## 관련 정보 
- 📖도서: [컨테이너 인프라 환경 구축을 위한 쿠버네티스/도커](http://www.yes24.com/Product/Goods/102099414)
- ℹ️소스: [깃허브](https://github.com/SeongJuMoon/_Lecture_graf_learning.kit)

## 중요한 알림
이 대시보드는 📖[컨테이너 인프라 환경 구축을 위한 쿠버네티스/도커](http://www.yes24.com/Product/Goods/102099414)  책에서 사용된 대시보드를 v1.26.0에 맞게 변경하였습니다.  따라서 📖[컨테이너 인프라 환경 구축을 위한 쿠버네티스/도커](http://www.yes24.com/Product/Goods/102099414) 책에서 제공하는 가상머신 환경에 유사하게 최적화 되어 있습니다. 하지만 책의 실습 버전과 다소 차이가 있기 때문에 직접적인 연결은 되지 않으며, 클라우드 사에서 제공하는 EKS,AKS,GKE에서도 일부 익스포터를 깔고 설정하면 동작되는 것은 확인하였습니다. 하지만 여러가지의 고려 사항들이 있을 수 있기 때문에 이를 보증하진 않습니다. 

이 대시보드는 쿠버네티스 클러스터의 운영과 문제 해결에 필요한 정보를 보여줍니다.
4개의 영역으로 구성되어 있으며
각 영역에서는 아래와 같은 정보를 확인할 수 있습니다.
1. 클러스터 요약
- 마스터 정상 가동률
- 네임스페이스, Pod, PVC의 숫자
- 노드별 현황 정보를 보여주는 테이블
2. 클러스터 전체 정보
- 노드별 CPU 점유율
- 노드별 메모리 사용량
- 클러스터 수준의 초당 평균 네트워크 트래픽
- API 서버 호출 통계
3. 노드별 정보
- CPU 점유율
- 메모리 점유율
- 디스크 사용률
- CPU 코어 개수
- 전체 메모리 용량
- 파일 디스크립터와 컨텍스트 스위칭
- 완료된 디스크 IOPS
4. Pod별 정보
- 가동 시간
- 가동 상태
- 10분 이내 재시작 시도 횟수
- 리소스 사용량(메모리, CPU, FS)
- 리소스 할당 제한
- 초당 네트워크 트래픽
- 메모리 상태(Swap/Failure)
- 스레드 개수

[Release Note]
2023/01/28
- 최초 릴리즈


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      "title": "Disk IOPS 완료",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {
        "defaults": {
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          },
          "unit": "decbytes"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 3,
        "w": 2,
        "x": 9,
        "y": 20
      },
      "id": 143,
      "options": {
        "colorMode": "value",
        "graphMode": "none",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "9.2.4",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "editorMode": "code",
          "expr": "kube_node_status_allocatable{resource=\"memory\",node=\"$node\"}",
          "instant": true,
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "title": "메모리",
      "type": "stat"
    },
    {
      "collapsed": false,
      "datasource": {
        "type": "prometheus",
        "uid": "siWL5MTVk"
      },
      "gridPos": {
        "h": 1,
        "w": 24,
        "x": 0,
        "y": 23
      },
      "id": 168,
      "panels": [],
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "siWL5MTVk"
          },
          "refId": "A"
        }
      ],
      "title": "Pod $pod",
      "type": "row"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {
        "defaults": {
          "decimals": 2,
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "blue",
                "value": null
              }
            ]
          },
          "unit": "s"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 5,
        "x": 0,
        "y": 24
      },
      "id": 179,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "mean"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "9.2.4",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "editorMode": "code",
          "expr": "time()-kube_pod_start_time{pod=\"$pod\"}",
          "instant": true,
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "title": "Pod 생성시간",
      "type": "stat"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {
        "defaults": {
          "mappings": [
            {
              "options": {
                "0": {
                  "text": "Good"
                },
                "1": {
                  "text": "Bad"
                }
              },
              "type": "value"
            }
          ],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 5,
        "x": 5,
        "y": 24
      },
      "id": 173,
      "options": {
        "colorMode": "background",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "9.2.4",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "editorMode": "code",
          "expr": "sum(kube_pod_container_status_waiting{pod=\"$pod\", reason!~\"ContainerCreating\"})",
          "instant": true,
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "title": "Pod 가동 상태",
      "type": "stat"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {
        "defaults": {
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "yellow",
                "value": 2
              },
              {
                "color": "red",
                "value": 5
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 3,
        "x": 10,
        "y": 24
      },
      "id": 175,
      "options": {
        "colorMode": "background",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "9.2.4",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "editorMode": "code",
          "expr": "sum(round(increase(kube_pod_container_status_restarts_total{pod=\"$pod\"}[10m])))",
          "format": "time_series",
          "instant": true,
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "title": "10분 이내 재시작",
      "type": "stat"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {
        "defaults": {
          "decimals": 2,
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          },
          "unit": "decbytes"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "CPU(%)"
            },
            "properties": [
              {
                "id": "unit",
                "value": "percentunit"
              },
              {
                "id": "thresholds",
                "value": {
                  "mode": "absolute",
                  "steps": [
                    {
                      "color": "green",
                      "value": null
                    },
                    {
                      "color": "red",
                      "value": 0.9
                    }
                  ]
                }
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "Memory(bytes)"
            },
            "properties": [
              {
                "id": "max",
                "value": 1073741824
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "File system usage"
            },
            "properties": [
              {
                "id": "max",
                "value": 1048576
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 6,
        "w": 7,
        "x": 13,
        "y": 24
      },
      "id": 171,
      "options": {
        "displayMode": "lcd",
        "minVizHeight": 10,
        "minVizWidth": 0,
        "orientation": "horizontal",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "showUnfilled": true
      },
      "pluginVersion": "9.2.4",
      "targets": [
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          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "editorMode": "code",
          "expr": "sum(rate(container_cpu_usage_seconds_total{pod=\"$pod\"}[$duration]))",
          "interval": "",
          "legendFormat": "CPU(%)",
          "range": true,
          "refId": "A"
        },
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "expr": "sum(container_memory_usage_bytes{pod=\"$pod\"})",
          "interval": "",
          "legendFormat": "Memory(bytes)",
          "refId": "B"
        },
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "editorMode": "code",
          "expr": "sum(container_fs_usage_bytes{pod=\"$pod\"}) # not working on containerD now",
          "interval": "",
          "legendFormat": "File system usage",
          "range": true,
          "refId": "C"
        }
      ],
      "title": "리소스 사용량",
      "type": "bargauge"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {
        "defaults": {
          "mappings": [],
          "noValue": "∞",
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "rgb(255, 255, 255)",
                "value": null
              }
            ]
          }
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Memory"
            },
            "properties": [
              {
                "id": "unit",
                "value": "decbytes"
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "CPU core"
            },
            "properties": [
              {
                "id": "unit",
                "value": "core"
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 20,
        "y": 24
      },
      "id": 177,
      "options": {
        "colorMode": "value",
        "graphMode": "none",
        "justifyMode": "auto",
        "orientation": "horizontal",
        "reduceOptions": {
          "calcs": [
            "mean"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "9.2.4",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "editorMode": "code",
          "expr": "sum(kube_pod_container_resource_limits_cpu_cores{pod=\"$pod\"})",
          "interval": "",
          "legendFormat": "CPU core",
          "range": true,
          "refId": "A"
        },
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "expr": "sum(kube_pod_container_resource_limits_memory_bytes{pod=\"$pod\"})",
          "interval": "",
          "legendFormat": "Memory",
          "refId": "B"
        }
      ],
      "title": "리소스 할당  제한",
      "type": "stat"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "description": "",
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },
          "custom": {
            "axisCenteredZero": false,
            "axisColorMode": "text",
            "axisGridShow": true,
            "axisLabel": "수신 | 송신",
            "axisPlacement": "auto",
            "barAlignment": 0,
            "drawStyle": "bars",
            "fillOpacity": 100,
            "gradientMode": "none",
            "hideFrom": {
              "legend": false,
              "tooltip": false,
              "viz": false
            },
            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "never",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "links": [],
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          },
          "unit": "decbytes"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "in"
            },
            "properties": [
              {
                "id": "color",
                "value": {
                  "fixedColor": "#73BF69",
                  "mode": "fixed"
                }
              },
              {
                "id": "custom.transform",
                "value": "negative-Y"
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "out"
            },
            "properties": [
              {
                "id": "color",
                "value": {
                  "fixedColor": "#5794F2",
                  "mode": "fixed"
                }
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 8,
        "w": 8,
        "x": 0,
        "y": 30
      },
      "id": 169,
      "options": {
        "legend": {
          "calcs": [
            "mean",
            "max",
            "min"
          ],
          "displayMode": "list",
          "placement": "bottom",
          "showLegend": true
        },
        "tooltip": {
          "mode": "multi",
          "sort": "none"
        }
      },
      "pluginVersion": "9.2.4",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "expr": "sum(rate(container_network_receive_bytes_total{pod=\"$pod\"}[$duration]))",
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "in",
          "refId": "A"
        },
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "expr": "sum(rate(container_network_transmit_bytes_total{pod=\"$pod\"}[$duration]))",
          "interval": "",
          "legendFormat": "out",
          "refId": "B"
        }
      ],
      "title": "초당 네트워크 트래픽",
      "transformations": [],
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "description": "",
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },
          "custom": {
            "axisCenteredZero": false,
            "axisColorMode": "text",
            "axisLabel": "",
            "axisPlacement": "auto",
            "barAlignment": 0,
            "drawStyle": "line",
            "fillOpacity": 10,
            "gradientMode": "none",
            "hideFrom": {
              "legend": false,
              "tooltip": false,
              "viz": false
            },
            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "never",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "links": [],
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          },
          "unit": "none"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "in"
            },
            "properties": [
              {
                "id": "color",
                "value": {
                  "fixedColor": "#73BF69",
                  "mode": "fixed"
                }
              },
              {
                "id": "custom.transform",
                "value": "negative-Y"
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "out"
            },
            "properties": [
              {
                "id": "color",
                "value": {
                  "fixedColor": "#5794F2",
                  "mode": "fixed"
                }
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 8,
        "w": 8,
        "x": 8,
        "y": 30
      },
      "id": 180,
      "options": {
        "legend": {
          "calcs": [],
          "displayMode": "list",
          "placement": "bottom",
          "showLegend": true
        },
        "tooltip": {
          "mode": "multi",
          "sort": "none"
        }
      },
      "pluginVersion": "9.2.4",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "expr": "sum(container_memory_swap{pod=\"$pod\"}) by (pod)",
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "Swap",
          "refId": "A"
        },
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "expr": "sum(rate(container_memory_failcnt{pod=\"$pod\"}[$duration])) by (pod)",
          "interval": "",
          "legendFormat": "Memory Failure",
          "refId": "B"
        }
      ],
      "title": "메모리 상태(Swap/Failure)",
      "transformations": [],
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "description": "",
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },
          "custom": {
            "axisCenteredZero": false,
            "axisColorMode": "text",
            "axisLabel": "",
            "axisPlacement": "auto",
            "barAlignment": 0,
            "drawStyle": "points",
            "fillOpacity": 40,
            "gradientMode": "opacity",
            "hideFrom": {
              "legend": false,
              "tooltip": false,
              "viz": false
            },
            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "auto",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "links": [],
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          },
          "unit": "short"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Thread"
            },
            "properties": [
              {
                "id": "custom.drawStyle",
                "value": "bars"
              },
              {
                "id": "custom.fillOpacity",
                "value": 100
              },
              {
                "id": "color",
                "value": {
                  "fixedColor": "orange",
                  "mode": "fixed"
                }
              },
              {
                "id": "custom.lineWidth",
                "value": 0
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 8,
        "w": 8,
        "x": 16,
        "y": 30
      },
      "id": 182,
      "options": {
        "legend": {
          "calcs": [],
          "displayMode": "list",
          "placement": "bottom",
          "showLegend": true
        },
        "tooltip": {
          "mode": "multi",
          "sort": "none"
        }
      },
      "pluginVersion": "9.2.4",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "expr": "sum(container_threads{pod=\"$pod\", container!=\"POD\"})",
          "interval": "",
          "intervalFactor": 5,
          "legendFormat": "Thread",
          "refId": "A"
        }
      ],
      "title": "스레드 개수",
      "type": "timeseries"
    }
  ],
  "refresh": "30s",
  "schemaVersion": 37,
  "style": "dark",
  "tags": [
    "kubernetes",
    "k8s"
  ],
  "templating": {
    "list": [
      {
        "current": {},
        "datasource": {
          "type": "prometheus",
          "uid": "${DS_PROMETHEUS}"
        },
        "definition": "label_values(node_uname_info, nodename)",
        "hide": 0,
        "includeAll": false,
        "multi": false,
        "name": "node",
        "options": [],
        "query": {
          "query": "label_values(node_uname_info, nodename)",
          "refId": "StandardVariableQuery"
        },
        "refresh": 1,
        "regex": "",
        "skipUrlSync": false,
        "sort": 1,
        "tagValuesQuery": "",
        "tagsQuery": "",
        "type": "query",
        "useTags": false
      },
      {
        "auto": false,
        "auto_count": 30,
        "auto_min": "10s",
        "current": {
          "selected": false,
          "text": "5m",
          "value": "5m"
        },
        "hide": 0,
        "name": "duration",
        "options": [
          {
            "selected": false,
            "text": "2m",
            "value": "2m"
          },
          {
            "selected": true,
            "text": "5m",
            "value": "5m"
          },
          {
            "selected": false,
            "text": "10m",
            "value": "10m"
          },
          {
            "selected": false,
            "text": "30m",
            "value": "30m"
          },
          {
            "selected": false,
            "text": "1h",
            "value": "1h"
          }
        ],
        "query": "2m,5m,10m,30m,1h",
        "queryValue": "",
        "refresh": 2,
        "skipUrlSync": false,
        "type": "interval"
      },
      {
        "current": {},
        "datasource": {
          "type": "prometheus",
          "uid": "${DS_PROMETHEUS}"
        },
        "definition": "query_result(node_uname_info{nodename=\"$node\"})",
        "hide": 0,
        "includeAll": false,
        "multi": false,
        "name": "instance",
        "options": [],
        "query": {
          "query": "query_result(node_uname_info{nodename=\"$node\"})",
          "refId": "StandardVariableQuery"
        },
        "refresh": 1,
        "regex": "/instance=\"(.+?)\"/",
        "skipUrlSync": false,
        "sort": 0,
        "tagValuesQuery": "",
        "tagsQuery": "",
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        "current": {},
        "datasource": {
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        "definition": "label_values(kube_pod_labels, namespace)",
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      {
        "current": {},
        "datasource": {
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        "definition": "label_values(kube_pod_info{namespace=\"$namespace\"},  pod)",
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        "query": {
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        "skipUrlSync": false,
        "sort": 0,
        "tagValuesQuery": "",
        "tagsQuery": "",
        "type": "query",
        "useTags": false
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    ]
  },
  "time": {
    "from": "now-3h",
    "to": "now"
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  "timepicker": {
    "refresh_intervals": [
      "10s",
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  },
  "timezone": "",
  "title": "1 Kubernetes All-in-one Cluster Monitoring KR(v1.26.0)",
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}