默认情况下，Red Hat OpenShift Container Platform 使用 Ingress Operator 创建内部 CA。
以下示例显示了用于为 Red Hat Advanced Cluster Management 提供自定义 OpenShift Container Platform 默认入口 CA 证书的默认模板。使用项目的名称替换 namespace。将 configmap 替换为 ConfigMap 的名称：
apiVersion: operator.open-cluster-management.io/v1
kind: MultiClusterHub
metadata:
name: multiclusterhub
namespace: <namespace>
spec:
customCAConfigmap: <configmap>
apiVersion: operator.open-cluster-management.io/v1
kind: MultiClusterHub
metadata:
name: multiclusterhub
namespace: <namespace>
spec:
customCAConfigmap: <configmap>
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