As per suggestion from Viktor, the setupds.pl used in the ds-migration test suite is not supported in RHEL8, thus used 'dscreate' to install directory server and the ds-migration over lpdas was successful

Thus closing the bug

LOG:

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   migration over ldaps
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: [ 07:11:34 ] :: [  BEGIN   ] :: Running 'sed -i 's/ca.crt/remoteds.crt/g' /etc/openldap/ldap.conf'
:: [ 07:11:34 ] :: [   PASS   ] :: Command 'sed -i 's/ca.crt/remoteds.crt/g' /etc/openldap/ldap.conf' (Expected 0, got 0)
:: [ 07:11:34 ] :: [  BEGIN   ] :: Restarting httpd :: actually running 'service httpd restart'
Redirecting to /bin/systemctl restart httpd.service
:: [ 07:11:37 ] :: [   PASS   ] :: Restarting httpd (Expected 0, got 0)
:: [ 07:11:38 ] :: [  BEGIN   ] :: Running 'ipa config-mod --enable-migration=TRUE'
  Maximum username length: 32
  Home directory base: /home
  Default shell: /bin/sh
  Default users group: ipausers
  Default e-mail domain: testrelm.test
  Search time limit: 2
  Search size limit: 100
  User search fields: uid,givenname,sn,telephonenumber,ou,title
  Group search fields: cn,description
  Enable migration mode: TRUE
  Certificate Subject base: O=TESTRELM.TEST
  Password Expiration Notification (days): 4
  Password plugin features: AllowNThash, KDC:Disable Last Success
  SELinux user map order: guest_u:s0$xguest_u:s0$user_u:s0$staff_u:s0-s0:c0.c1023$unconfined_u:s0-s0:c0.c1023
  Default SELinux user: unconfined_u:s0-s0:c0.c1023
  Default PAC types: MS-PAC, nfs:NONE
  IPA masters: auto-hv-01-guest03.testrelm.test
  IPA CA servers: auto-hv-01-guest03.testrelm.test
  IPA CA renewal master: auto-hv-01-guest03.testrelm.test
  IPA master capable of PKINIT: auto-hv-01-guest03.testrelm.test
:: [ 07:11:47 ] :: [   PASS   ] :: Command 'ipa config-mod --enable-migration=TRUE' (Expected 0, got 0)
:: [ 07:11:47 ] :: [   LOG    ] :: EXECUTING: ipa migrate-ds --with-compat --user-container="ou=People,dc=example,dc=com" --group-container="ou=groups,dc=example,dc=com" ldaps://hp-dl380pgen8-02-vm-13.testrelm.test:636 --ca-cert-file=/etc/ipa/remoteds.crt --with-compat
:: [ 07:11:47 ] :: [  BEGIN   ] :: Running 'echo Secret123 | ipa migrate-ds --user-container="ou=People,dc=example,dc=com" --group-container="ou=groups,dc=example,dc=com" ldaps://hp-dl380pgen8-02-vm-13.testrelm.test:636 --ca-cert-file=/etc/ipa/remoteds.crt --with-compat'
-----------
migrate-ds:
-----------
Migrated:
  user: puser1, puser2, philomena_hazen
  group: demo_group, group1, group2
Failed user:
Failed group:
----------
Passwords have been migrated in pre-hashed format.
IPA is unable to generate Kerberos keys unless provided
with clear text passwords. All migrated users need to
login at https://your.domain/ipa/migration/ before they
can use their Kerberos accounts.
:: [ 07:11:48 ] :: [   PASS   ] :: Command 'echo Secret123 | ipa migrate-ds --user-container="ou=People,dc=example,dc=com" --group-container="ou=groups,dc=example,dc=com" ldaps://hp-dl380pgen8-02-vm-13.testrelm.test:636 --ca-cert-file=/etc/ipa/remoteds.crt --with-compat' (Expected 0, got 0)
:: [ 07:11:48 ] :: [  BEGIN   ] :: Verifying puser1 was migrated :: actually running 'ipa user-show puser1'
  User login: puser1
  Last name: User1
  Home directory: /home/puser1
  Login shell: /bin/bash
  Principal name: puser1
  Principal alias: puser1
  UID: 1001
  GID: 1001
  Account disabled: False
  Password: True
  Member of groups: ipausers
  Kerberos keys available: False
:: [ 07:11:49 ] :: [   PASS   ] :: Verifying puser1 was migrated (Expected 0, got 0)
:: [ 07:11:49 ] :: [  BEGIN   ] :: Verifying 'puser2' was migrated :: actually running 'ipa user-show puser2'
  User login: puser2
  Last name: User2
  Home directory: /home/puser2
  Login shell: /bin/bash
  Principal name: puser2
  Principal alias: puser2
  UID: 1002
  GID: 1002
  Account disabled: False
  Password: True
  Member of groups: ipausers
  Kerberos keys available: False
:: [ 07:11:50 ] :: [   PASS   ] :: Verifying 'puser2' was migrated (Expected 0, got 0)
:: [ 07:11:51 ] :: [  BEGIN   ] :: Verifying 'philomena_hazen' was migrated :: actually running 'ipa user-show philomena_hazen'
  User login: philomena_hazen
  First name: Philomena
  Last name: Hazen
  Home directory: /home/Philomena_Hazen
  Login shell: /bin/sh
  Principal name: philomena_hazen
  Principal alias: philomena_hazen
  Email address: Philomena_Hazen
  UID: 18795
  GID: 28795
  Telephone Number: +1 206 660-3641
  Org. Unit: Human Resources
  Job Title: Senior Human Resources Accountant
  Account disabled: False
  Password: True
  Member of groups: ipausers
  Kerberos keys available: False
:: [ 07:11:51 ] :: [   PASS   ] :: Verifying 'philomena_hazen' was migrated (Expected 0, got 0)
:: [ 07:11:52 ] :: [  BEGIN   ] :: Verifying group 'group1' was migrated :: actually running 'ipa group-show group1'
  Group name: group1
  GID: 1001
:: [ 07:11:52 ] :: [   PASS   ] :: Verifying group 'group1' was migrated (Expected 0, got 0)
:: [ 07:11:52 ] :: [  BEGIN   ] :: Verifying group 'group2' was migrated :: actually running 'ipa group-show group2'
  Group name: group2
  GID: 1002
:: [ 07:11:53 ] :: [   PASS   ] :: Verifying group 'group2' was migrated (Expected 0, got 0)
:: [ 07:11:53 ] :: [   LOG    ] :: Cleaning up migrated users
--------------------------------------------
Deleted user "puser1,puser2,philomena_hazen"
--------------------------------------------
ipa: ERROR: hr managers: group not found
Redirecting to /bin/systemctl restart httpd.service
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   Duration: 25s
::   Assertions: 9 good, 0 bad
::   RESULT: PASS

** migration-over-ldaps PASS Score:0
Uploading resultoutputfile.log .done
/usr/bin/rhts-sync-set -s DONE
:: [ 07:12:03 ] :: [   LOG    ] :: Machine in recipe in not a SLAVE
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   Duration: 107s
::   Assertions: 19 good, 0 bad
::   RESULT: PASS