dashboard again

k8s/monitoring/templates/session-telemetry-dashboard.yaml

@@ -157,6 +157,77 @@ data:
           "title": "Unique Rooms Joined",
           "type": "stat"
         },
+        {
+          "datasource": "${logs}",
+          "fieldConfig": {
+            "defaults": {
+              "color": {
+                "mode": "palette-classic"
+              },
+              "custom": {
+                "axisLabel": "Joins",
+                "axisPlacement": "auto",
+                "barAlignment": 0,
+                "drawStyle": "line",
+                "fillOpacity": 10,
+                "gradientMode": "none",
+                "hideFrom": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": false
+                },
+                "lineInterpolation": "smooth",
+                "lineWidth": 2,
+                "pointSize": 5,
+                "showPoints": "auto",
+                "spanNulls": false,
+                "stacking": {
+                  "group": "A",
+                  "mode": "none"
+                },
+                "thresholdsStyle": {
+                  "mode": "off"
+                }
+              },
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  { "color": "green", "value": null }
+                ]
+              },
+              "unit": "none"
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 4,
+            "w": 6,
+            "x": 18,
+            "y": 0
+          },
+          "id": 15,
+          "options": {
+            "legend": {
+              "calcs": [],
+              "displayMode": "list",
+              "placement": "bottom"
+            },
+            "tooltip": {
+              "mode": "single"
+            }
+          },
+          "targets": [
+            {
+              "expr": "sum(count_over_time({namespace=\"webrtc-be\", container=\"webrtc-be\"} |= \"type=join_telemetry\" [$__interval]))",
+              "legendFormat": "Joins",
+              "refId": "A"
+            }
+          ],
+          "description": "Timeline of participant join events.",
+          "title": "Join Events Over Time",
+          "type": "timeseries"
+        },
         {
           "datasource": "Prometheus",
           "gridPos": {