feat: add Azure DevOps dashboard (#5818)

Co-authored-by: Startrekzky <kaiyun.zhang@merico.dev>
diff --git a/grafana/dashboards/AzureDevOps.json b/grafana/dashboards/AzureDevOps.json
new file mode 100644
index 0000000..34813da
--- /dev/null
+++ b/grafana/dashboards/AzureDevOps.json
@@ -0,0 +1,1159 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": {
+          "type": "datasource",
+          "uid": "grafana"
+        },
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 0,
+  "id": 30,
+  "links": [],
+  "liveNow": false,
+  "panels": [
+    {
+      "datasource": {
+        "type": "datasource",
+        "uid": "grafana"
+      },
+      "gridPos": {
+        "h": 3,
+        "w": 13,
+        "x": 0,
+        "y": 0
+      },
+      "id": 101,
+      "options": {
+        "code": {
+          "language": "plaintext",
+          "showLineNumbers": false,
+          "showMiniMap": false
+        },
+        "content": "- Use Cases: This dashboard shows the basic Git and Code Review metrics from Azure DevOps.\n- Data Source Required: Azure DevOps",
+        "mode": "markdown"
+      },
+      "pluginVersion": "9.5.2",
+      "targets": [
+        {
+          "datasource": {
+            "type": "datasource",
+            "uid": "grafana"
+          },
+          "queryType": "randomWalk",
+          "refId": "A"
+        }
+      ],
+      "title": "Dashboard Introduction",
+      "type": "text"
+    },
+    {
+      "collapsed": false,
+      "datasource": {
+        "type": "datasource",
+        "uid": "grafana"
+      },
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 3
+      },
+      "id": 83,
+      "panels": [],
+      "targets": [
+        {
+          "datasource": {
+            "type": "datasource",
+            "uid": "grafana"
+          },
+          "refId": "A"
+        }
+      ],
+      "title": "1. Contribution (PRs)",
+      "type": "row"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 6,
+        "x": 0,
+        "y": 4
+      },
+      "id": 68,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "text": {},
+        "textMode": "auto"
+      },
+      "pluginVersion": "9.5.2",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "format": "table",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "select\n\tcount(*) as pull_request_count\nfrom \n\tpull_requests pr\nwhere\n  $__timeFilter(created_date)\n\tand base_repo_id in ($repo_id)\n\t\n\n",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "1.1 Number of New Pull Requests [Selected Time Range]",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "axisSoftMin": 0,
+            "fillOpacity": 80,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "lineWidth": 1,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 18,
+        "x": 6,
+        "y": 4
+      },
+      "id": 77,
+      "options": {
+        "barRadius": 0,
+        "barWidth": 0.5,
+        "fullHighlight": false,
+        "groupWidth": 0.7,
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "orientation": "auto",
+        "showValue": "auto",
+        "stacking": "none",
+        "text": {
+          "valueSize": 12
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        },
+        "xTickLabelRotation": 0,
+        "xTickLabelSpacing": 0
+      },
+      "pluginVersion": "8.0.6",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "editorMode": "code",
+          "format": "table",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "with _prs as(\n  SELECT\n    DATE_ADD(date(created_date), INTERVAL -DAY(date(created_date))+1 DAY) as time,\n    count(*) as pr_count\n  FROM pull_requests\n  WHERE\n    base_repo_id in ($repo_id)\n    and $__timeFilter(created_date)\n    and created_date >= DATE_ADD(DATE_ADD($__timeFrom(), INTERVAL -DAY($__timeFrom())+1 DAY), INTERVAL +1 MONTH)\n  group by 1\n)\n\nSELECT \n  date_format(time,'%M %Y') as month,\n  pr_count as \"Pull Request Count\"\nFROM _prs\nORDER BY time\n",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "sql": {
+            "columns": [
+              {
+                "parameters": [],
+                "type": "function"
+              }
+            ],
+            "groupBy": [
+              {
+                "property": {
+                  "type": "string"
+                },
+                "type": "groupBy"
+              }
+            ],
+            "limit": 50
+          },
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "1.2 Total Number of New Pull Requests [Each Month]",
+      "type": "barchart"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "Merged PR Count",
+            "axisPlacement": "auto",
+            "axisSoftMin": 0,
+            "fillOpacity": 54,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "lineWidth": 1,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "none"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 24,
+        "x": 0,
+        "y": 10
+      },
+      "id": 59,
+      "options": {
+        "barRadius": 0,
+        "barWidth": 0.5,
+        "fullHighlight": false,
+        "groupWidth": 0.7,
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "orientation": "auto",
+        "showValue": "auto",
+        "stacking": "none",
+        "text": {
+          "valueSize": 12
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "none"
+        },
+        "xTickLabelRotation": 0,
+        "xTickLabelSpacing": 0
+      },
+      "pluginVersion": "8.0.6",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "format": "table",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "-- The PR/MR statuses are standardized to DevLake's statuses 'OPEN', 'MERGED' and 'CLOSED'. You can check out the original status from the field `original_status`\nselect\n  author_name,\n\tcount(*) as merged_pull_request_count\nfrom \n\tpull_requests pr\nwhere\n  $__timeFilter(created_date)\n\tand base_repo_id in ($repo_id)\n\tand pr.status = 'MERGED'\ngroup by 1\norder by 2 desc\nlimit 20\n",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "1.3 Top Contributors By Merged PRs",
+      "type": "barchart"
+    },
+    {
+      "collapsed": false,
+      "datasource": {
+        "type": "datasource",
+        "uid": "grafana"
+      },
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 16
+      },
+      "id": 85,
+      "panels": [],
+      "targets": [
+        {
+          "datasource": {
+            "type": "datasource",
+            "uid": "grafana"
+          },
+          "refId": "A"
+        }
+      ],
+      "title": "2. How PRs are handled?",
+      "type": "row"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "percentunit"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 6,
+        "x": 0,
+        "y": 17
+      },
+      "id": 66,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [],
+          "fields": "",
+          "values": false
+        },
+        "text": {},
+        "textMode": "auto"
+      },
+      "pluginVersion": "9.5.2",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "format": "table",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "-- The PR/MR statuses are standardized to DevLake's statuses 'OPEN', 'MERGED' and 'CLOSED'. You can check out the original status from the field `original_status`\nselect\n  count(distinct case when status='CLOSED' then id else null end)/count(distinct case when status in ('MERGED','CLOSED') then id else null end) as ratio\nfrom \n\tpull_requests pr\nwhere\n  $__timeFilter(created_date)\n\tand base_repo_id in ($repo_id)",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "2.1 Ratio of Non-merging Pull Requests of All Closed or Merged PRs",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "Pull Request Count",
+            "axisPlacement": "auto",
+            "barAlignment": 1,
+            "drawStyle": "bars",
+            "fillOpacity": 50,
+            "gradientMode": "opacity",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 4,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "normal"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 18,
+        "x": 6,
+        "y": 17
+      },
+      "id": 79,
+      "options": {
+        "legend": {
+          "calcs": [
+            "sum"
+          ],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "8.0.6",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "format": "time_series",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "-- The PR/MR statuses are standardized to DevLake's statuses 'OPEN', 'MERGED' and 'CLOSED'. You can check out the original status from the field `original_status`\nSELECT\n  DATE_ADD(date(created_date), INTERVAL -DAYOFMONTH(date(created_date))+1 DAY) as time,\n  count(distinct case when status = 'OPEN' then id else null end) as \"PR: Open\",\n  count(distinct case when status = 'CLOSED' then id else null end) as \"PR: Closed without merging\",\n  count(distinct case when status = 'MERGED' then id else null end) as \"PR: Merged\"\nFROM pull_requests\nWHERE\n  $__timeFilter(created_date)\n  and base_repo_id in ($repo_id)\ngroup by 1\n",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "2.2 Pull Request Status Distribution [Each Month]",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 6,
+        "x": 0,
+        "y": 23
+      },
+      "id": 80,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "text": {},
+        "textMode": "auto"
+      },
+      "pluginVersion": "9.5.2",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "format": "table",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "-- The PR/MR statuses are standardized to DevLake's statuses 'OPEN', 'MERGED' and 'CLOSED'. You can check out the original status from the field `original_status`\nselect\n\tcount(*) as merged_pull_request_count\nfrom \n\tpull_requests pr\nwhere\n  $__timeFilter(created_date)\n\tand base_repo_id in ($repo_id)\n\tand pr.status = 'CLOSED'",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "2.3 Number of Pull Requests Closed without Merging [Selected Time Range]",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "Ratio",
+            "axisPlacement": "auto",
+            "barAlignment": 1,
+            "drawStyle": "line",
+            "fillOpacity": 50,
+            "gradientMode": "opacity",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "lineInterpolation": "linear",
+            "lineStyle": {
+              "fill": "solid"
+            },
+            "lineWidth": 1,
+            "pointSize": 4,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "normal"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              }
+            ]
+          },
+          "unit": "percentunit"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 18,
+        "x": 6,
+        "y": 23
+      },
+      "id": 81,
+      "options": {
+        "legend": {
+          "calcs": [
+            "mean"
+          ],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "8.0.6",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "format": "time_series",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "-- The PR/MR statuses are standardized to DevLake's statuses 'OPEN', 'MERGED' and 'CLOSED'. You can check out the original status from the field `original_status`\nSELECT\n  DATE_ADD(date(created_date), INTERVAL -DAYOFMONTH(date(created_date))+1 DAY) as time,\n  count(distinct case when status = 'CLOSED' then id else null end)/count(distinct case when status in ('MERGED', 'CLOSED') then id else null end) as ratio\nFROM pull_requests\nWHERE\n  $__timeFilter(created_date)\n  and base_repo_id in ($repo_id)\ngroup by 1\n",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "2.4 Ratio of Non-merging PRs of All Closed or Merged PRs [Each Month]",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 6,
+        "x": 0,
+        "y": 29
+      },
+      "id": 72,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "text": {},
+        "textMode": "auto"
+      },
+      "pluginVersion": "9.5.2",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "format": "table",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "select\n\tavg(TIMESTAMPDIFF(Minute,created_date,merged_date)/1440)\nfrom \n\tpull_requests\nwhere \n  $__timeFilter(created_date)\n\tand base_repo_id in ($repo_id)\n\tand merged_date is not null\n\n\n",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "2.5 Mean Time to Merge of Pull Requests in Days [Selected Time Range]",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "mysql",
+        "uid": "P430005175C4C7810"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "axisSoftMin": 0,
+            "fillOpacity": 80,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "lineWidth": 1,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 18,
+        "x": 6,
+        "y": 29
+      },
+      "id": 95,
+      "options": {
+        "barRadius": 0,
+        "barWidth": 0.5,
+        "fullHighlight": false,
+        "groupWidth": 0.7,
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "orientation": "auto",
+        "showValue": "auto",
+        "stacking": "none",
+        "text": {
+          "valueSize": 12
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        },
+        "xTickLabelRotation": 0,
+        "xTickLabelSpacing": 0
+      },
+      "pluginVersion": "8.0.6",
+      "targets": [
+        {
+          "datasource": {
+            "type": "mysql",
+            "uid": "P430005175C4C7810"
+          },
+          "format": "table",
+          "group": [],
+          "hide": false,
+          "metricColumn": "none",
+          "rawQuery": true,
+          "rawSql": "with _prs as(\n  SELECT\n    DATE_ADD(date(created_date), INTERVAL -DAY(date(created_date))+1 DAY) as time,\n    avg(TIMESTAMPDIFF(Minute,created_date,merged_date)/1440) as time_to_merge\n  FROM pull_requests\n  WHERE\n    $__timeFilter(created_date)\n    and base_repo_id in ($repo_id)\n    and created_date >= DATE_ADD(DATE_ADD($__timeFrom(), INTERVAL -DAY($__timeFrom())+1 DAY), INTERVAL +1 MONTH)\n  group by 1\n)\n\nSELECT \n  date_format(time,'%M %Y') as month,\n  time_to_merge as \"Time to Merge\"\nFROM _prs\nORDER BY time\n",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "id"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ae_projects",
+          "timeColumn": "ae_create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "title": "2.6 Mean Time to Merge of Pull Requests in Days [Each Month]",
+      "type": "barchart"
+    },
+    {
+      "datasource": {
+        "type": "datasource",
+        "uid": "grafana"
+      },
+      "gridPos": {
+        "h": 2,
+        "w": 24,
+        "x": 0,
+        "y": 35
+      },
+      "id": 99,
+      "options": {
+        "code": {
+          "language": "plaintext",
+          "showLineNumbers": false,
+          "showMiniMap": false
+        },
+        "content": "<br/>\n\nThis dashboard is created based on this [data schema](https://devlake.apache.org/docs/DataModels/DevLakeDomainLayerSchema). Want to add more metrics? Please follow the [guide](https://devlake.apache.org/docs/Configuration/Dashboards/GrafanaUserGuide).",
+        "mode": "markdown"
+      },
+      "pluginVersion": "9.5.2",
+      "targets": [
+        {
+          "datasource": {
+            "type": "datasource",
+            "uid": "grafana"
+          },
+          "queryType": "randomWalk",
+          "refId": "A"
+        }
+      ],
+      "type": "text"
+    }
+  ],
+  "refresh": "",
+  "schemaVersion": 38,
+  "style": "dark",
+  "tags": [
+    "Data Source Dashboard"
+  ],
+  "templating": {
+    "list": [
+      {
+        "allValue": "",
+        "current": {
+          "selected": true,
+          "text": [
+            "All"
+          ],
+          "value": [
+            "$__all"
+          ]
+        },
+        "datasource": {
+          "type": "mysql",
+          "uid": "P430005175C4C7810"
+        },
+        "definition": "select concat(name, '--', id) as text from repos where id like 'azure%'",
+        "hide": 0,
+        "includeAll": true,
+        "label": "Repo",
+        "multi": true,
+        "name": "repo_id",
+        "options": [],
+        "query": "select concat(name, '--', id) as text from repos where id like 'azure%'",
+        "refresh": 1,
+        "regex": "/^(?<text>.*)--(?<value>.*)$/",
+        "skipUrlSync": false,
+        "sort": 0,
+        "type": "query"
+      }
+    ]
+  },
+  "time": {
+    "from": "now-6M",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "",
+  "title": "Azure DevOps",
+  "uid": "ba7e3a95-80ed-4067-a54b-2a82758eb3dd",
+  "version": 4,
+  "weekStart": ""
+}
\ No newline at end of file
diff --git a/grafana/dashboards/Homepage.json b/grafana/dashboards/Homepage.json
index 37cb762..1ac3e86 100644
--- a/grafana/dashboards/Homepage.json
+++ b/grafana/dashboards/Homepage.json
@@ -18,7 +18,7 @@
   "editable": true,
   "fiscalYearStartMonth": 0,
   "graphTooltip": 0,
-  "id": 19,
+  "id": 24,
   "links": [],
   "liveNow": false,
   "panels": [
@@ -1291,6 +1291,65 @@
         }
       ],
       "type": "text"
+    },
+    {
+      "datasource": {
+        "type": "datasource",
+        "uid": "grafana"
+      },
+      "gridPos": {
+        "h": 5,
+        "w": 6,
+        "x": 6,
+        "y": 41
+      },
+      "id": 38,
+      "links": [],
+      "options": {
+        "code": {
+          "language": "plaintext",
+          "showLineNumbers": false,
+          "showMiniMap": false
+        },
+        "content": "<a href=\"/grafana/d/ba7e3a95-80ed-4067-a54b-2a82758eb3dd/azure-devops?orgId=1\">\n    <div style=\"vertical-align:middle;text-align:center;margin:60px;\">\n        <p style=\"text-align:center;font-size:20px;margin:20px;\"><b>Azure DevOps</b></p>\n    </div>\n</a>",
+        "mode": "html"
+      },
+      "pluginVersion": "9.5.2",
+      "targets": [
+        {
+          "datasource": {
+            "type": "datasource",
+            "uid": "grafana"
+          },
+          "format": "time_series",
+          "group": [],
+          "metricColumn": "none",
+          "rawQuery": false,
+          "rawSql": "SELECT\n  create_time AS \"time\",\n  progress\nFROM ca_analysis\nWHERE\n  $__timeFilter(create_time)\nORDER BY 1",
+          "refId": "A",
+          "select": [
+            [
+              {
+                "params": [
+                  "progress"
+                ],
+                "type": "column"
+              }
+            ]
+          ],
+          "table": "ca_analysis",
+          "timeColumn": "create_time",
+          "timeColumnType": "timestamp",
+          "where": [
+            {
+              "name": "$__timeFilter",
+              "params": [],
+              "type": "macro"
+            }
+          ]
+        }
+      ],
+      "type": "text"
     }
   ],
   "refresh": "",