When starting a new Openshift v4 cluster you can sometimes get errors like remote error: tls: internal error. This is due to certificates not being approved yet. This can be shown when attempting to get logs from a container:

It can be seen that there are a number of pending CSR requests:

We can approve the requests with the following oc get csr -o name | xargs oc adm certificate approve

And confirm:

We can now get logs from our containers: