feat: Integrate Grafana Loki

grafana-datasources.yml

@@ -0,0 +1,45 @@
+# Grafana Data Source Provisioning
+# Auto-configures Loki as a data source in Grafana
+
+apiVersion: 1
+
+datasources:
+  - name: Loki
+    type: loki
+    access: proxy
+    url: http://loki:3100
+    isDefault: true
+    editable: true
+    jsonData:
+      maxLines: 1000
+      derivedFields:
+        # Extract trace ID from logs for distributed tracing
+        - datasourceUid: tempo
+          matcherRegex: "traceId=(\\w+)"
+          name: TraceID
+          url: "$${__value.raw}"
+        # Extract request ID for correlation
+        - matcherRegex: "requestId=(\\w+)"
+          name: RequestID
+          url: "$${__value.raw}"
+    version: 1
+
+  # Optional: Add Prometheus if you have metrics
+  # - name: Prometheus
+  #   type: prometheus
+  #   access: proxy
+  #   url: http://prometheus:9090
+  #   isDefault: false
+  #   editable: true
+  #   jsonData:
+  #     timeInterval: 15s
+  #   version: 1
+
+  # Optional: Add Tempo for distributed tracing
+  # - name: Tempo
+  #   type: tempo
+  #   access: proxy
+  #   url: http://tempo:3200
+  #   isDefault: false
+  #   editable: true
+  #   version: 1