Have a Warning Icon on a StatefulSet if the Pods can't be created

[kimwnasptd]

What would you like to be added

Have a warning icon instead of the green circle check for StatefulSets if the Pods cannot be created.

For example, if I create a StatefulSet with a non existent ServiceAccount, then the StatefulSet controller will not be able to create the Pod to the API Server. The problem is that the StatefulSet's Status doesn't reflect that error and only shows replicas: 0. But, we can get this info by looking at the StatefulSet's Events.

Why is this needed

If the StatefulSet controller can't create the Pods, then the UI will show a green check which implies that the STS is OK.

Althought, on the card it shows that there are 0/1 Pods available and I can see what is wrong if I click on the STS and see its Events. But I think it would be useful if the icon would be a warning to indicate that something is wrong.

Comments

You can check this behavior by creating this StatefulSet

apiVersion: v1
kind: Service
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  ports:
  - port: 80
    name: web
  clusterIP: None
  selector:
    app: nginx
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: web
spec:
  selector:
    matchLabels:
      app: nginx # has to match .spec.template.metadata.labels
  replicas: 1
  serviceName: "nginx"
  template:
    metadata:
      labels:
        app: nginx # has to match .spec.selector.matchLabels
    spec:
      terminationGracePeriodSeconds: 10
      serviceAccountName: nonexistent-service-account-test
      containers:
      - name: nginx
        image: k8s.gcr.io/nginx-slim:0.8
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: www
          mountPath: /usr/share/nginx/html

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