25 lines
753 B
Markdown
Executable File
25 lines
753 B
Markdown
Executable File
---
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title: Operator pattern
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id: operator-pattern
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date: 2019-05-21
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full_link: /docs/concepts/extend-kubernetes/operator/
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short_description: >
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A specialized controller used to manage a custom resource
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aka:
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tags:
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- architecture
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---
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The [operator pattern](/docs/concepts/extend-kubernetes/operator/) is a system
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design that links a {{< glossary_tooltip term_id="controller" >}} to one or more custom
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resources.
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<!--more-->
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You can extend Kubernetes by adding controllers to your cluster, beyond the built-in
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controllers that come as part of Kubernetes itself.
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If a running application acts as a controller and has API access to carry out tasks
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against a custom resource that's defined in the control plane, that's an example of
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the Operator pattern.
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