Kubernetes - Service Mesh
You labeled the namespace for Istio sidecar injection but new pods do not have the sidecar container. What is the most likely cause?
You labeled the namespace for Istio sidecar injection but new pods do not have the sidecar container. What is the most likely cause?
medium📝 Troubleshoot Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Check namespace labeling
If the label is missing or misspelled, sidecar injection won't trigger.Step 2: Verify Istio installation and pod creation timing
Istio must be installed; pods created before labeling need restart to get sidecars.Step 3: Combine all causes
Any of these issues can cause missing sidecars, so all are possible reasons.Final Answer:
All of the above -> Option AQuick Check:
Label, install, and pod timing all affect sidecar injection [OK]
Quick Trick: Check label, Istio install, and pod restart [OK]
Common Mistakes:
- Ignoring pod restart after labeling
- Assuming labeling alone is enough
- Not verifying Istio installation
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