Q: What is `imagePullPolicy: Always` vs `IfNotPresent`?
Always: pulls from registry every pod start (ensures latest changes). IfNotPresent: uses local cache if image tag exists. Production: use...
#Kubernetes #Additional Kubernetes Scenarios (Q101-Q200) #L2 #Container Orchestration #K8s
🎙️ Candidate Opening & Architectural Context
""In our production Kubernetes clusters running microservices on EKS/AKS, this was a classic operational challenge. When addressing this question, I walk the interviewer through our production incident runbook: isolating the blast radius, checking diagnostic logs and metrics, and applying a safe fix.""
Advertisement
🛠️ Production Runbook & Step-by-Step Resolution
1️⃣
Production Solution & Architecture
Always: pulls from registry every pod start (ensures latest changes). IfNotPresent: uses local cache if image tag exists. Production: use specific tags + IfNotPresent (predictable). Dev with latest: Always (but avoid latest in prod).
💡 The Senior SRE Gold Nugget (Key Architectural Takeaway)
"Pro-Tip: Always: pulls from registry every pod start (ensures latest changes). IfNotPresent: uses local cache if image tag exists. Producti."
⚡ 60-Second Elevator Pitch Talking Points
- Immediate Triage: Always: pulls from registry every pod start (ensures latest changes). IfNotPresent: uses local
- Run targeted verification commands before modifying configuration.
- Automate permanent guardrails (CI check, alerts, IaC policy) to prevent recurrence.
Advertisement