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by Zikes 3306 days ago
From https://kubernetes.io/docs/concepts/workloads/controllers/re...

> A ReplicaSet ensures that a specified number of pod “replicas” are running at any given time. However, a Deployment is a higher-level concept that manages ReplicaSets and provides declarative updates to pods along with a lot of other useful features. Therefore, we recommend using Deployments instead of directly using ReplicaSets, unless you require custom update orchestration or don’t require updates at all.