Q: How do you set environment variables when running a container?
docker run -e DB_HOST=localhost or docker run --env-file .env. For Compose: environment: key or env_file: key.
#Docker #Docker #L2 #Containers #Linux
🎙️ Candidate Opening & Architectural Context
""In an interview, I explain how we diagnosed container runtime failures without guessing. 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
docker run -e DB_HOST=localhost or docker run --env-file .env. For Compose: environment: key or env_file: key.
💡 The Senior SRE Gold Nugget (Key Architectural Takeaway)
"Pro-Tip: docker run -e DB_HOST=localhost or docker run --env-file .env. For Compose: environment: key or env_file: key.."
⚡ 60-Second Elevator Pitch Talking Points
- Immediate Triage: docker run -e DB_HOST=localhost or docker run --env-file .env. For Compose: environment: key or
- Run targeted verification commands before modifying configuration.
- Automate permanent guardrails (CI check, alerts, IaC policy) to prevent recurrence.
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