Kubernetes - kubectl Essential Commands
Given a deployment named
webapp already exists, what will be the output of kubectl create -f deployment.yaml?Given a deployment named webapp already exists, what will be the output of kubectl create -f deployment.yaml?
medium📝 Command Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand create behavior on existing resource
kubectl createfails if the resource already exists and shows an error.Step 2: Analyze output options
Only Error: deployment "webapp" already exists shows the error message expected when resource exists.Final Answer:
Error: deployment "webapp" already exists -> Option AQuick Check:
Create errors if resource exists = B [OK]
Quick Trick: Create fails if resource exists; apply updates instead [OK]
Common Mistakes:
- Expecting create to update resource
- Thinking create runs silently
- Confusing create with apply
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