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openshift-docs/modules/microshift-certificate-rotation.adoc
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// Module included in the following assemblies:
//
// * microshift_troubleshooting/microshift-responsive-restarts-cas.adoc
:_mod-docs-content-type: CONCEPT
[id="microshift-certificate-rotation_{context}"]
= Certificate rotation
[role="_abstract"]
Certificates that are expired or close to their expiration dates must be rotated to ensure continued {microshift-short} operation. This rotation can be an automatic process.
When {microshift-short} restarts for any reason, certificates that are close to expiring are rotated. A certificate that expires soon, or has already expired, can also cause an automatic {microshift-short} restart to perform a rotation.
[IMPORTANT]
====
If the rotated certificate is a {microshift-short} certificate authority (CA), then all of the signed certificates rotate. If you created any custom CAs, ensure that the CAs manually rotate.
====