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GCP Associate Cloud Engineer Practice Question

Your team deploys a stateless web service to a new Google Kubernetes Engine Autopilot cluster using the manifest below. After the rollout, you inspect a running Pod and notice that both containers have a CPU request of 250 mCPU and a memory request of 512 MiB even though you never defined any resources.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: web
spec:
  replicas: 2
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      labels:
        app: web
    spec:
      containers:
      - name: frontend
        image: gcr.io/my-proj/frontend:1.0
      - name: helper
        image: gcr.io/my-proj/helper:1.0

What explains the observed resource values in this Pod?

  • Autopilot silently ignores any resource section and applies cluster-level horizontal Pod autoscaling instead, which explains the numbers you observed.

  • GKE Autopilot automatically assigns a default request and limit (about 0.25 vCPU and 512 MiB) to every container whose manifest omits the resources field, and billing is based on those defaults.

  • The Pod could not have started without explicit resources, so the values you saw came from an earlier revision of the manifest that still had requests defined.

  • Because no resources were specified, the Pod was scheduled with zero requests; the 250 mCPU and 512 MiB you see are only advisory and are not billable.

GCP Associate Cloud Engineer
Ensuring successful operation of a cloud solution
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