fix: make knative service spec stable

deploy/20-deployment.yaml

@@ -18,6 +18,8 @@ spec:
         autoscaling.knative.dev/target: "1"
     spec:
       containerConcurrency: 1
+      enableServiceLinks: false
+      responseStartTimeoutSeconds: 600
       timeoutSeconds: 1200
       containers:
         - name: agent
@@ -26,6 +28,7 @@ spec:
           ports:
             - containerPort: 8000
               name: http1
+              protocol: TCP
           env:
             - name: A2A_AGENT_IMAGE
               value: registry.a2acloud.io/agents/agent-builder:53ecc9a0cb96530a07b3ed6cd7f5b48ebb7b6b88
@@ -50,6 +53,9 @@ spec:
             httpGet: {path: /healthz, port: 8000}
             initialDelaySeconds: 8
             periodSeconds: 5
+            failureThreshold: 3
+            successThreshold: 1
+            timeoutSeconds: 1
           livenessProbe:
             httpGet: {path: /healthz, port: 8000}
             initialDelaySeconds: 25
@@ -57,6 +63,9 @@ spec:
           resources:
             requests: {cpu: 200m, memory: 512Mi}
             limits: {cpu: 1, memory: 1Gi}
+  traffic:
+    - latestRevision: true
+      percent: 100
 ---
 apiVersion: networking.k8s.io/v1
 kind: Ingress