Merge pull request #58596 from bscott-rh/OCPBUGS-11605

OCPBUGS#11605 updating credentialsMode to allow Manual

Author: bscott-rh

modules/installation-configuration-parameters.adoc

@@ -728,7 +728,7 @@ accounts for the dramatically decreased machine performance.
 
 |`credentialsMode`
 |The Cloud Credential Operator (CCO) mode. If no mode is specified, the CCO dynamically tries to determine the capabilities of the provided credentials, with a preference for mint mode on the platforms where multiple modes are supported.
-ifdef::gcp[If you are installing on GCP into a shared virtual private cloud (VPC), `credentialsMode` must be set to `Passthrough`.]
+ifdef::gcp[If you are installing on GCP into a shared virtual private cloud (VPC), `credentialsMode` must be set to `Passthrough` or `Manual`.]
 [NOTE]
 ====
 Not all CCO modes are supported for all cloud providers. For more information about CCO modes, see the _Cloud Credential Operator_ entry in the _Cluster Operators reference_ content.

modules/installation-gcp-shared-vpc-config.adoc

@@ -60,7 +60,7 @@ networking:
 pullSecret: '{"auths": ...}'
 sshKey: ssh-ed25519 AAAA... <8>
 ----
-<1> `credentialsMode` must be set to `Passthrough` to allow the cluster to use the provided GCP service account after cluster creation. See the "Prerequisites" section for the required GCP permissions that your service account must have.
+<1> `credentialsMode` must be set to `Passthrough` or `Manual`. See the "Prerequisites" section for the required GCP permissions that your service account must have.
 <2> The name of the subnet in the shared VPC for compute machines to use.
 <3> The name of the subnet in the shared VPC for control plane machines to use.
 <4> The name of the shared VPC.