[Solved] You wrote this Pod spec: spec: nodeSelector: disk-type: ssd But your nodes have label disktype=ssd (no dash). What will happen when you try to schedule the Pod? | Kubernetes

Kubernetes - Scheduling

You wrote this Pod spec:

spec:
  nodeSelector:
    disk-type: ssd

But your nodes have label disktype=ssd (no dash). What will happen when you try to schedule the Pod?

APod will remain pending, no matching nodes found

BPod will schedule on nodes with label disktype=ssd

CPod will schedule on nodes with label disk-type=ssd

DPod will schedule on any available node

Step-by-Step Solution

Solution:

Step 1: Compare nodeSelector key with node labels
The pod requests nodes with label disk-type=ssd, but nodes have disktype=ssd. The keys differ by a dash.
Step 2: Understand label matching behavior
Labels must match exactly. Since no node has disk-type=ssd, pod cannot be scheduled.
Final Answer:
Pod will remain pending, no matching nodes found -> Option A
Quick Check:
Label keys must match exactly for nodeSelector [OK]

Quick Trick: Label keys must match exactly, including dashes [OK]

Common Mistakes:

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You wrote this Pod spec: