Kubernetes - Health Checks and Probes
You want to ensure your app only receives traffic after it finishes loading data and is ready. Which probe setup achieves this best?
You want to ensure your app only receives traffic after it finishes loading data and is ready. Which probe setup achieves this best?
hard📝 Best Practice Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Identify probe controlling traffic
Readiness probe controls when app receives user traffic.Step 2: Choose probe matching app readiness
Readiness probe checking /ready after data load ensures traffic only after app is ready.Step 3: Exclude other options
Liveness restarts app but does not control traffic; startup probe delays startup but not traffic control.Final Answer:
Use a readiness probe that checks a /ready endpoint returning success after data load -> Option CQuick Check:
Readiness probe controls traffic flow [OK]
Quick Trick: Readiness probe controls traffic after app is ready [OK]
Common Mistakes:
- Using liveness probe to control traffic
- Confusing startup probe with readiness probe
- Checking same endpoint for both probes
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