Asynchronous DR prerequisites for OCP GCP
- Secret Store: A secret store is configured on both clusters. This will store the credentials for the objectstore.
- Objectstore: GCP Object Storage
- Network Connectivity:
- OpenShift4+: All worker nodes are able to reach Kubernetes API endpoints on both Kubernetes clusters, for example, port 6443, 443 and so on.
- Portworx: Open port in the range of 17001-17020 for Portworx worker nodes to communicate with each other. To know more about the specific ports for your environment, see the Network table on the Prerequisites page.
 
- Default StorageClass: At most one StorageClass object is configured as the default. Having multiple default StorageClasses will cause PVC migrations to fail.
- Cloud Environment: Ensure that you have successfully applied the instructions provided on the GKE page for setting up your destination cluster.
- A separate Portworx cluster of same version is installed on both the source and destination clusters.
- storkctlis installed on both clusters. Note that always use the latest- storkctlbinary tool by downloading it from the current running Stork container. See the Prepare your Portworx cluster page.
- Portworx Enterprise DR license is activated on both clusters.
- Applications Registration: For certain OCP applications, you should create an ApplicationRegistrationCR first to facilitate the successful migration of them. Refer to the ApplicationRegistrations page for more information.