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DKR

DockerDRILL

Docker in production

Image size, architectures, exit codes, secrets and signals: what breaks when containers leave your laptop.

5 questions3 free

Q1, Q2 and Q4 are free. Unlock the other 2 model answers, and every other drill.

Q1Your Node.js image is 1.2 GB. How do you get it under 200 MB?PostmanFreshworksFree
Q2The container works on your laptop but fails in production with "exec format error". What happened?ThoughtworksRazorpayFree
Q3A container exits with code 137. Another exits with code 1. What does each tell you?FreshworksLocked
Q4Someone put an API key in a Dockerfile ENV and later removed it. Is it safe now?PhonePeRazorpayFree
Q5docker stop takes 10 seconds every time and the app never shuts down cleanly. Why?GoogleLocked

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Docker in production: 5 interview questions | InfraThrone DevOps Park