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OSDOCS-17172-user-provided-certs-for-API-server-redo CQA #116332

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ShaunaDiaz merged 1 commit into from
Jul 24, 2026
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OSDOCS-17172-user-provided-certs-for-API-server-redo CQA #116332

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10 changes: 8 additions & 2 deletions ...y/certificate_types_descriptions/user-provided-certificates-for-api-server.adoc
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Expand Up @@ -6,24 +6,30 @@ include::_attributes/common-attributes.adoc[]

toc::[]

[role="_abstract"]
Review user-provided TLS certificates for the API server in {product-title} to understand their purpose, location, management, and expiration for external client access.

[id="user-provided-certificates-for-api-server-purpose_{context}"]
== Purpose

The API server is accessible by clients external to the cluster at `api.<cluster_name>.<base_domain>`. You might want clients to access the API server at a different hostname or without the need to distribute the cluster-managed certificate authority (CA) certificates to the clients. The administrator must set a custom default certificate to be used by the API server when serving content.

[id="user-provided-certificates-for-api-server-location_{context}"]
== Location

The user-provided certificates must be provided in a `kubernetes.io/tls` type `Secret` in the `openshift-config` namespace. Update the API server cluster configuration, the `apiserver/cluster` resource, to enable the use of the user-provided certificate.

[id="user-provided-certificates-for-api-server-management_{context}"]
== Management

User-provided certificates are managed by the user.

[id="user-provided-certificates-for-api-server-expiration_{context}"]
== Expiration

API server client certificate expiration is less than five minutes.

User-provided certificates are managed by the user.

[id="user-provided-certificates-for-api-server-customization_{context}"]
== Customization

Update the secret containing the user-managed certificate as needed.
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