sap_hana_preconfigure: Be less restrictive with new RHEL versions

Solves issue #500.

The new behavior if a system is running a RHEL version which is not in
the list 'sap_hana_preconfigure_supported_rhel_minor_releases' is as follows:
1 - role running in normal mode:
  a - sap_hana_preconfigure_min_rhel_release_check: false (default)
      The debug task "Report if the system is running a RHEL release
        which is supported for SAP HANA" displays a warning message.
  b - sap_hana_preconfigure_min_rhel_release_check: true
      The assert task "Fail if the system is running a RHEL release
        which may not be supported for SAP HANA" fails with a
        failure message.
2 - role running in assert mode, sap_hana_preconfigure_assert: true:
  a - sap_hana_preconfigure_min_rhel_release_check: false (default)
      The assert task "Report if the RHEL release is supported for SAP
        HANA" displays a warning message but the warning(error) is always
        ignored, so the playbook continues.
  b - sap_hana_preconfigure_min_rhel_release_check: true
      The assert task "Assert that the system is running a RHEL release
        which is supported for SAP HANA" fails with a failure message.

roles/sap_hana_preconfigure/README.md

@@ -159,10 +159,11 @@ For the RHEL System Roles for SAP, or for Red Hat Automation Hub, use 'redhat.rh
 
 ### sap_hana_preconfigure_min_rhel_release_check
 - _Type:_ `bool`
-- _Default:_ `true`
+- _Default:_ `false`
 
-Check the RHEL release against a predefined list of known SAP HANA supported RHEL minor releases.<br>
-If this parameter is set to `false`, the role will *not* perform this check.<br>
+Check the RHEL release against parameter `sap_hana_preconfigure_supported_rhel_minor_releases`, which is a list of<br>
+known SAP HANA supported RHEL minor releases. By default, the role will display a message and continue running if<br>
+the RHEL release is not part of that list. If set to `true`, the role will fail in such a case.<br>
 
 ### sap_hana_preconfigure_supported_rhel_minor_releases
 - _Type:_ `list` with elements of type `str`

roles/sap_hana_preconfigure/defaults/main.yml

@@ -34,9 +34,10 @@ sap_hana_preconfigure_system_roles_collection: 'fedora.linux_system_roles'
 # - fedora.linux_system_roles
 # - redhat.rhel_system_roles
 
-sap_hana_preconfigure_min_rhel_release_check: true
-# Check the RHEL release against a predefined list of known SAP HANA supported RHEL minor releases.
-# If this parameter is set to `false`, the role will *not* perform this check.
+sap_hana_preconfigure_min_rhel_release_check: false
+# Check the RHEL release against parameter `sap_hana_preconfigure_supported_rhel_minor_releases`, which is a list of
+# known SAP HANA supported RHEL minor releases. By default, the role will display a message and continue running if
+# the RHEL release is not part of that list. If set to `true`, the role will fail in such a case.
 
 sap_hana_preconfigure_supported_rhel_minor_releases: "{{ __sap_hana_preconfigure_supported_rhel_minor_releases }}"
 # Use this parameter to set your own list of SAP HANA supported RHEL minor releases.

roles/sap_hana_preconfigure/meta/argument_specs.yml

@@ -83,10 +83,11 @@ argument_specs:
         type: str
 
       sap_hana_preconfigure_min_rhel_release_check:
-        default: true
+        default: false
         description:
-          - Check the RHEL release against a predefined list of known SAP HANA supported RHEL minor releases.
-          - If this parameter is set to `false`, the role will *not* perform this check.
+          - Check the RHEL release against parameter `sap_hana_preconfigure_supported_rhel_minor_releases`, which is a list of
+          - known SAP HANA supported RHEL minor releases. By default, the role will display a message and continue running if
+          - the RHEL release is not part of that list. If set to `true`, the role will fail in such a case.
         required: false
         type: bool
 

roles/sap_hana_preconfigure/tasks/RedHat/assert-installation.yml

@@ -1,17 +1,21 @@
 ---
 
-- name: Assert that the RHEL release is supported for SAP HANA
+- name: Assert that the system is running a RHEL release which is supported for SAP HANA
   ansible.builtin.assert:
     that: ansible_distribution_version in "{{ sap_hana_preconfigure_supported_rhel_minor_releases }}"
-    fail_msg: "FAIL: The RHEL release {{ ansible_distribution_version }} is not supported for SAP HANA!"
+    fail_msg:
+      - "FAIL: The RHEL release '{{ ansible_distribution_version }}' may not (yet) be supported for SAP HANA. Please check SAP note 2235581!"
+      - "NOTE: If necessary, adapt role parameter `sap_hana_preconfigure_supported_rhel_minor_releases` accordingly."
     success_msg: "PASS: The RHEL release {{ ansible_distribution_version }} is supported for SAP HANA."
   ignore_errors: "{{ sap_hana_preconfigure_assert_ignore_errors | d(false) }}"
   when: sap_hana_preconfigure_min_rhel_release_check
 
 - name: Report if the RHEL release is supported for SAP HANA
   ansible.builtin.assert:
     that: ansible_distribution_version in "{{ sap_hana_preconfigure_supported_rhel_minor_releases }}"
-    fail_msg: "WARN: The RHEL release {{ ansible_distribution_version }} is not supported for SAP HANA!"
+    fail_msg:
+      - "WARN: The RHEL release '{{ ansible_distribution_version }}' may not (yet) be supported for SAP HANA. Please check SAP note 2235581!"
+      - "NOTE: If necessary, adapt role parameter `sap_hana_preconfigure_supported_rhel_minor_releases` accordingly."
     success_msg: "INFO: The RHEL release {{ ansible_distribution_version }} is supported for SAP HANA."
   ignore_errors: yes
   when: not sap_hana_preconfigure_min_rhel_release_check

roles/sap_hana_preconfigure/tasks/RedHat/installation.yml

@@ -4,12 +4,23 @@
   ansible.builtin.setup:
     gather_subset: distribution_version
 
-- name: Ensure that the system is running a RHEL release which is supported for SAP HANA
+- name: Report if the system is running a RHEL release which is supported for SAP HANA
+  ansible.builtin.debug:
+    msg:
+      - "WARN: The RHEL release '{{ ansible_distribution_version }}' may not (yet) be supported for SAP HANA. Please check SAP note 2235581!"
+      - "      If necessary, adapt role parameter `sap_hana_preconfigure_supported_rhel_minor_releases` accordingly."
+  when:
+    - not sap_hana_preconfigure_min_rhel_release_check
+    - ansible_distribution_version not in sap_hana_preconfigure_supported_rhel_minor_releases
+
+- name: Fail if the system is running a RHEL release which may not be supported for SAP HANA
   ansible.builtin.assert:
     that: ansible_distribution_version in "{{ sap_hana_preconfigure_supported_rhel_minor_releases }}"
-    fail_msg: "The RHEL release {{ ansible_distribution_version }} is not supported for SAP HANA!"
-    success_msg: "The RHEL release {{ ansible_distribution_version }} is supported for SAP HANA."
-  ignore_errors: "{{ not sap_hana_preconfigure_min_rhel_release_check }}"
+    fail_msg:
+      - "The RHEL release '{{ ansible_distribution_version }}' may not (yet) be supported for SAP HANA. Please check SAP note 2235581!"
+      - "If necessary, adapt role parameter `sap_hana_preconfigure_supported_rhel_minor_releases` accordingly."
+    success_msg: "The RHEL release '{{ ansible_distribution_version }}' is supported for SAP HANA."
+  when: sap_hana_preconfigure_min_rhel_release_check
 
 - name: Perform steps for enabling repos for SAP HANA
   when: sap_hana_preconfigure_enable_sap_hana_repos