Kubernetes Service Not Routing Traffic After Scaling Deployment to Zero on v1.28
Does anyone know how to I'm working with an scenario where my Kubernetes service is not routing traffic to the pods after I scale down my deployment to zero replicas and then back up to the desired count. I have a simple setup with a Deployment and a Service defined like this: ```yaml apiVersion: apps/v1 kind: Deployment metadata: name: my-app spec: replicas: 0 selector: matchLabels: app: my-app template: metadata: labels: app: my-app spec: containers: - name: my-app-container image: my-app-image:latest ports: - containerPort: 8080 --- apiVersion: v1 kind: Service metadata: name: my-app-service spec: selector: app: my-app ports: - protocol: TCP port: 80 targetPort: 8080 type: LoadBalancer ``` After scaling the deployment back up to 3 replicas using `kubectl scale deployment my-app --replicas=3`, I can see the pods starting up without errors. However, when I try to access the service, it just times out. The output of `kubectl get pods` shows all pods are running, but the service does not seem to route to them: ``` NAME READY STATUS RESTARTS AGE my-app-5f7d5bf4ff-abcde 1/1 Running 0 2m my-app-5f7d5bf4ff-fghij 1/1 Running 0 2m my-app-5f7d5bf4ff-klmno 1/1 Running 0 2m ``` I have tried deleting and recreating the service, but that did not help. Additionally, I checked the endpoints and found that they don’t point to any pods: ``` $ kubectl get endpoints my-app-service NAME ENDPOINTS AGE my-app-service <none> 1m ``` It seems the service is not correctly associating with the pods after the scaling operation. I suspect this might have something to do with the service’s selector or the pod labels. The pod labels are set correctly, matching the selector in the service. What could be causing this scenario? Any suggestions on how to troubleshoot further or resolve this behavior? What am I doing wrong?