Docker and CI/CD · Senior · Question 29 of 75

You redeploy `my-app:latest` but some nodes still run old code. Why?

✓Correct answer: Nodes with the tag cached don't pull it again
2Kubernetes caches the image for 24 hours
3The registry serves old layers to some nodes

Explanation

With IfNotPresent, a node reuses the image it has. Unchanged specs also don't trigger a rollout. Deploy immutable tags or digests instead.

Further reading

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