Docker and CI/CD · Junior · Question 2 of 75

What is the difference between an image and a container?

1They are two names for the same thing in different Docker versions
✓Correct answer: An image is a read-only template; a container is a running instance of it
3An image is a running process; a container is the file it was built from

Explanation

Like a class and its objects: one image can start many containers. Each container adds its own thin writable layer on top of the image.

Further reading

Docker Docs: What is Docker? ↗

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