27 lines
967 B
Markdown
27 lines
967 B
Markdown
---
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title: Replica
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id: replica
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date: 2023-06-11
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full_link:
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short_description: >
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Replicas are copies of pods, ensuring availability, scalability, and fault tolerance by maintaining identical instances.
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aka:
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tags:
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- fundamental
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- workload
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---
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A copy or duplicate of a {{< glossary_tooltip text="Pod" term_id="pod" >}} or
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a set of pods. Replicas ensure high availability, scalability, and fault tolerance
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by maintaining multiple identical instances of a pod.
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<!--more-->
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Replicas are commonly used in Kubernetes to achieve the desired application state and reliability.
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They enable workload scaling and distribution across multiple nodes in a cluster.
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By defining the number of replicas in a Deployment or ReplicaSet, Kubernetes ensures that
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the specified number of instances are running, automatically adjusting the count as needed.
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Replica management allows for efficient load balancing, rolling updates, and
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self-healing capabilities in a Kubernetes cluster.
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