OpenShift Container Platform checklist
Use this checklist to ensure that your OpenShift Container Platform is configured and ready for installing CDP Private Cloud Experiences.
|OpenShift Platform version||
Ensure that the installed OpenShift Container Platform is version 4.6.x.
|OpenShift software requirements||N/A|
|DNS configuration||Ensure that you have set up the DNS and Reverse DNS between OpenShift container hosts and CDP Private Cloud Base. This is required for obtaining Kerberos ticket-granting tickets.||Certificate management and DNS||A wildcard DNS entry is required for resolving the ingress route for applications. The ingress route is usually behind a load balancer.|
|Check if you can access the OpenShift hostnames outside the cluster||Ensure that OpenShift application hostnames can be accessed from outside the cluster. You can test this by creating an ingress point on the target cluster.||A minimal Ingress resource example||
Perform a DNS query on the route generated, to check if you can access the hostnames outside the cluster.
|Storage classes configuration||
Ensure that you have configured separate storage classes for the control plane and the compute clusters. Both the storage classes must be provisioned from Persistent Volumes.
|OpenShift Kubeconfig file||Ensure that you have access to the OpenShift Kubeconfig file, cluster administrator privileges, and sufficient expiry time for you to complete your installation.||Download Kubernetes Configuration||N/A|
|Allow WebSocket traffic in addition to HTTPS||When a load balancer is used for your OpenShift Container Platform external API, you must allow WebSocket traffic in addition to HTTPS. The load balancer must allow WebSockets on port 80. Also, ensure that you set the load balancer server timeout to 5 minutes.||N/A||N/A|
|Clock time from NTP source||Ensure that the NTP clock in CDP Private Cloud Base is in sync with the time configured in the OpenShift cluster. This is an important step if your setup does not have access to the Internet.||Enable an NTP Service||Install CDP Private Cloud Experiences in air gap environment|
|Route admission policy||Ensure OCP cluster is configured to run applications in multiple namespaces with the same domain name.||Configuring the route admission policy||N/A|