Can I configure an Oracle Dataguard standby in a Red Hat Cluster?

Issue

My oracle standby database starts but it goes down immediately.

Dec  9 13:22:05 fvm-rhel-8-3-171 oracle(instance_mydb)[13357]: INFO: Oracle instance mydb started:
Dec  9 13:22:05 fvm-rhel-8-3-171 crmd[11693]:  notice: Result of start operation for instance_mydb on fvm-rhel-8-3-171: 0 (ok)

Dec  9 13:22:13 fvm-rhel-8-3-171 oracle(instance_mydb)[41217]: WARNING: Unable to login as "OCFMON", using "sysdba" user instead
Dec  9 13:22:13 fvm-rhel-8-3-171 oracle(instance_mydb)[41217]: INFO: mydb instance state is not OPEN (dbstat output: MOUNTED) 

Dec  9 13:22:13 fvm-rhel-8-3-171 oracle(instance_mydb)[41217]: ERROR: oracle instance mydb is down

Dec  9 13:22:13 fvm-rhel-8-3-171 lrmd[11690]:  notice: instance_mydb_monitor_10000:41217:stderr [ ocf-exit-reason:oracle instance mydb is down ]
Dec  9 13:22:13 fvm-rhel-8-3-171 crmd[11693]:  notice: fvm-rhel-8-3-171.local-instance_mydb_monitor_10000:71 [ ocf-exit-reason:oracle instance mydb is down\n ]