Docker and CI/CD · Middle · Question 8 of 75

Why is `CMD ["npm", "start"]` discouraged in production images?

1npm is removed from official Node images after the build
✓Correct answer: npm may not forward signals to node, and it adds an extra process
3npm start runs the app in development mode by default

Explanation

Running node directly makes it the process that gets SIGTERM, so graceful shutdown works, and it avoids npm's overhead.

Further reading

Node.js Docker best practices ↗

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