What is the easiest way to install nexus repo into openshift4

Here is the documentation I have been following to install it.
How to install Nexus Pro using Nexus Operator in OpenShift – Sonatype Support

Here is what the logs are looking like:
2022-06-16 19:19:33,356+0000 WARN [Timer-0] *SYSTEM java.util.prefs - Couldn’t flush user prefs: java.util.prefs.BackingStoreException: Couldn’t get file lock.
2022-06-16 19:20:00,005+0000 INFO [quartz-9-thread-20] *SYSTEM org.sonatype.nexus.quartz.internal.task.QuartzTaskInfo - Task ‘Storage facet cleanup’ [repository.storage-facet-cleanup] state change WAITING → RUNNING
2022-06-16 19:20:00,007+0000 INFO [quartz-9-thread-20] *SYSTEM org.sonatype.nexus.quartz.internal.task.QuartzTaskInfo - Task ‘Storage facet cleanup’ [repository.storage-facet-cleanup] state change RUNNING → WAITING (OK)
2022-06-16 19:20:03,356+0000 WARN [Timer-0] *SYSTEM java.util.prefs - Could not lock User prefs. Unix error code 2.
2022-06-16 19:20:03,356+0000 WARN [Timer-0] *SYSTEM java.util.prefs - Couldn’t flush user prefs: java.util.prefs.BackingStoreException: Couldn’t get file lock.
2022-06-16 19:20:33,357+0000 WARN [Timer-0] *SYSTEM java.util.prefs - Could not lock User prefs. Unix error code 2.
2022-06-16 19:20:33,357+0000 WARN [Timer-0] *SYSTEM java.util.prefs - Couldn’t flush user prefs: java.util.prefs.BackingStoreException: Couldn’t get file lock.
2022-06-16 19:21:03,356+0000 WARN [Timer-0] *SYSTEM java.util.prefs - Could not lock User prefs. Unix error code 2.

022-06-16 17:29:33,318+0000 WARN [Timer-0] *SYSTEM java.util.prefs - Couldn’t flush user prefs: java.util.prefs.BackingStoreException: Couldn’t get file lock.
2022-06-16 17:30:00,006+0000 INFO [quartz-9-thread-20] *SYSTEM org.sonatype.nexus.quartz.internal.task.QuartzTaskInfo - Task ‘Storage facet cleanup’ [repository.storage-facet-cleanup] state change WAITING → RUNNING
2022-06-16 17:30:00,010+0000 INFO [quartz-9-thread-20] *SYSTEM org.sonatype.nexus.quartz.internal.task.QuartzTaskInfo - Task ‘Storage facet cleanup’ [repository.storage-facet-cleanup] state change RUNNING → WAITING (OK)
2022-06-16 17:30:03,318+0000 WARN [Timer-0] *SYSTEM java.util.prefs - Could not lock User prefs. Unix error code 2.