feat: add Jaeger tracing observability to OpenShift deployment

Adds Jaeger all-in-one deployment for distributed tracing support in the semantic router dashboard. Fixes the "Jaeger not configured" error on the tracing page.

Changes:
- deploy/openshift/observability/jaeger/deployment.yaml: Jaeger all-in-one container with OTLP, gRPC, HTTP, and Zipkin endpoints
- deploy/openshift/observability/jaeger/service.yaml: ClusterIP service exposing all Jaeger ports (UI:16686, OTLP:4317/4318, etc.)
- deploy/openshift/observability/jaeger/route.yaml: OpenShift route for external Jaeger UI access

Configuration:
- Memory-based trace storage (10,000 max traces)
- OTLP collector enabled for OpenTelemetry integration
- No QUERY_BASE_PATH set to allow proper static asset loading through dashboard proxy
- Security context with non-root user and dropped capabilities
- Resource limits: 512Mi-1Gi memory, 250m-500m CPU

The dashboard's existing Jaeger proxy configuration at router.go:317-350 handles proxying to http://jaeger:16686 via the TARGET_JAEGER_URL environment variable already configured in dashboard-deployment.yaml.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>
Signed-off-by: Senan Zedan <[email protected]>

Author: szedan-rh

deploy/openshift/observability/jaeger/deployment.yaml

@@ -0,0 +1,85 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: jaeger
+  namespace: vllm-semantic-router-system
+  labels:
+    app.kubernetes.io/name: jaeger
+    app.kubernetes.io/component: observability
+    app.kubernetes.io/part-of: semantic-router-stack
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: jaeger
+      app.kubernetes.io/component: observability
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: jaeger
+        app.kubernetes.io/component: observability
+        app.kubernetes.io/part-of: semantic-router-stack
+    spec:
+      securityContext:
+        runAsNonRoot: true
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+      - name: jaeger
+        image: jaegertracing/all-in-one:latest
+        ports:
+        - name: ui
+          containerPort: 16686
+          protocol: TCP
+        - name: otlp-grpc
+          containerPort: 4317
+          protocol: TCP
+        - name: otlp-http
+          containerPort: 4318
+          protocol: TCP
+        - name: jaeger-grpc
+          containerPort: 14250
+          protocol: TCP
+        - name: jaeger-thrift
+          containerPort: 14268
+          protocol: TCP
+        - name: zipkin
+          containerPort: 9411
+          protocol: TCP
+        env:
+        - name: COLLECTOR_OTLP_ENABLED
+          value: "true"
+        - name: SPAN_STORAGE_TYPE
+          value: "memory"
+        - name: MEMORY_MAX_TRACES
+          value: "10000"
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+            - ALL
+          seccompProfile:
+            type: RuntimeDefault
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 16686
+          initialDelaySeconds: 30
+          periodSeconds: 10
+          timeoutSeconds: 5
+          failureThreshold: 3
+        readinessProbe:
+          httpGet:
+            path: /
+            port: 16686
+          initialDelaySeconds: 10
+          periodSeconds: 5
+          timeoutSeconds: 5
+          failureThreshold: 3
+        resources:
+          requests:
+            memory: "512Mi"
+            cpu: "250m"
+          limits:
+            memory: "1Gi"
+            cpu: "500m"

deploy/openshift/observability/jaeger/route.yaml

@@ -0,0 +1,20 @@
+apiVersion: route.openshift.io/v1
+kind: Route
+metadata:
+  name: jaeger
+  namespace: vllm-semantic-router-system
+  labels:
+    app.kubernetes.io/name: jaeger
+    app.kubernetes.io/component: observability
+    app.kubernetes.io/part-of: semantic-router-stack
+spec:
+  to:
+    kind: Service
+    name: jaeger
+    weight: 100
+  port:
+    targetPort: ui
+  tls:
+    termination: edge
+    insecureEdgeTerminationPolicy: Redirect
+  wildcardPolicy: None

deploy/openshift/observability/jaeger/service.yaml

@@ -0,0 +1,39 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: jaeger
+  namespace: vllm-semantic-router-system
+  labels:
+    app.kubernetes.io/name: jaeger
+    app.kubernetes.io/component: observability
+    app.kubernetes.io/part-of: semantic-router-stack
+spec:
+  type: ClusterIP
+  ports:
+  - name: ui
+    port: 16686
+    targetPort: 16686
+    protocol: TCP
+  - name: otlp-grpc
+    port: 4317
+    targetPort: 4317
+    protocol: TCP
+  - name: otlp-http
+    port: 4318
+    targetPort: 4318
+    protocol: TCP
+  - name: jaeger-grpc
+    port: 14250
+    targetPort: 14250
+    protocol: TCP
+  - name: jaeger-thrift
+    port: 14268
+    targetPort: 14268
+    protocol: TCP
+  - name: zipkin
+    port: 9411
+    targetPort: 9411
+    protocol: TCP
+  selector:
+    app.kubernetes.io/name: jaeger
+    app.kubernetes.io/component: observability