Q: NodePort service not reachable from outside.
Check firewall/security group rules allow the NodePort (30000-32767) range.
#Kubernetes #Advanced Scenarios #L2 #Container Orchestration #K8s
🎙️ Candidate Opening & Architectural Context
""When troubleshooting Kubernetes, I always follow a structured layered model: Pod status -> Events -> Logs -> Network. 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.""
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🛠️ Production Runbook & Step-by-Step Resolution
1️⃣
Production Solution & Architecture
Check firewall/security group rules allow the NodePort (30000-32767) range.
💡 The Senior SRE Gold Nugget (Key Architectural Takeaway)
"Pro-Tip: Check firewall/security group rules allow the NodePort (30000-32767) range.."
⚡ 60-Second Elevator Pitch Talking Points
- Immediate Triage: Check firewall/security group rules allow the NodePort (30000-32767) range.
- Run targeted verification commands before modifying configuration.
- Automate permanent guardrails (CI check, alerts, IaC policy) to prevent recurrence.
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