Allow splunk_nix user/group to be configurable as system user/group

roles/splunk/defaults/main.yml

@@ -16,6 +16,7 @@ splunk_install_path: /opt # Base directory on the operating system to which splu
 least_privileged: false # Do not change. This get automatically set in `tasks/main.yml` based on the version and install type.
 splunk_nix_user: splunk
 splunk_nix_group: splunk
+splunk_nix_system_user: false # Whenther or not to create splunk nix user/group as a system user/group
 local_os_user: false # Whenther or not to force creation of a user using the `luseradd` or not.
 local_os_group: false # Whether or not to force creation of a group using the `lgroupadd` or not.
 splunk_uri_lm: undefined

roles/splunk/tasks/install_splunk.yml

@@ -8,6 +8,7 @@
     - name: Add nix splunk group
       group:
         name: "{{ splunk_nix_group }}"
+        system: "{{ splunk_nix_system_user }}"
         state: present
         local: "{{ local_os_group }}"
       become: true
@@ -17,6 +18,7 @@
         name: "{{ splunk_nix_user }}"
         group: "{{ splunk_nix_group }}"
         home: "{{ splunk_home }}"
+        system: "{{ splunk_nix_system_user }}"
         state: present
         shell: /bin/bash
         local: "{{ local_os_user }}"