---
title: ReplicaSet
id: replica-set
date: 2018-04-12
full_link: /docs/concepts/workloads/controllers/replicaset/
short_description: >
  ReplicaSet is the next-generation Replication Controller.

aka: 
tags:
- fundamental
- core-object
- workload
---
 ReplicaSet is the next-generation Replication Controller.

<!--more--> 

ReplicaSet, like ReplicationController, ensures that a specified number of pods replicas are running at one time. ReplicaSet supports the new set-based selector requirements as described in the labels user guide, whereas a Replication Controller only supports equality-based selector requirements.