Kubernetes - Labels and Selectors
Which of the following is the correct syntax to select pods with label
app=frontend in a Service YAML?Which of the following is the correct syntax to select pods with label app=frontend in a Service YAML?
easy📝 Configuration Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Check YAML selector syntax
Selectors use key: value pairs without '=' sign or list format.Step 2: Validate options
selector: app: frontend uses correct key: value syntax. selector: app = frontend uses '=' which is invalid. selector: app: 'frontend' version: 'v1' adds extra label, which is valid but not asked. selector: - app: frontend uses list format which is invalid for selector.Final Answer:
selector: app: frontend -> Option AQuick Check:
Selector uses key: value, no '=' or list [OK]
Quick Trick: Use key: value pairs for selectors, no '=' or lists [OK]
Common Mistakes:
- Using '=' instead of ':' in YAML
- Writing selectors as lists
- Adding extra labels not requested
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