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openshift-docs/modules/cert-manager-about.adoc
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// Module included in the following assemblies:
//
// * security/cert_manager_operator/index.adoc
:_mod-docs-content-type: CONCEPT
[id="cert-manager-about_{context}"]
= About the {cert-manager-operator}
[role="_abstract"]
The cert-manager project introduces certificate authorities and certificates as resource types in the Kubernetes API, which makes it possible to provide certificates on-demand to developers working within your cluster. The {cert-manager-operator} provides a supported way to integrate cert-manager into your {product-title} cluster.
The {cert-manager-operator} provides the following features:
* Support for integrating with external certificate authorities
* Tools to manage certificates
* Ability for developers to self-serve certificates
* Automatic certificate renewal
[IMPORTANT]
====
Do not attempt to use both {cert-manager-operator} for {product-title} and the community cert-manager Operator at the same time in your cluster.
Also, you should not install {cert-manager-operator} for {product-title} in multiple namespaces within a single OpenShift cluster.
====