ansible: create group on ibm i (#3507)

On IBM i group profiles are a subset of user profiles therefore
user profiles and group profiles can't have the same name

In this case I created group named grp and added the server_user to
the group

ansible/roles/user-create/tasks/main.yml

@@ -15,12 +15,22 @@
     group: "{{ server_user }}"
     shell: "{{ bash_path[os|stripversion]|default('/bin/bash') }}"
 
+- name: create group for ibmi
+  when: os|startswith("ibmi")
+  command: "/QOpenSys/usr/bin/system 'CRTUSRPRF USRPRF(GRP) GID(*GEN)'"
+  args:
+    creates: "/QSYS.LIB/GRP.USRPRF"
+
 - name: create user for ibmi
   when: os|startswith("ibmi")
   command: "/QOpenSys/usr/bin/system 'CRTUSRPRF USRPRF({{ server_user }}) PASSWORD(*none)'"
   args:
     creates: "/QSYS.LIB/IOJS.USRPRF"
 
+- name: add user to the group
+  when: os|startswith("ibmi")
+  command: "/QOpenSys/usr/bin/system 'CHGUSRPRF USRPRF({{ server_user }}) GRPPRF(GRP)'"
+
 - name: setup user home directory for ibmi
   when: os|startswith("ibmi")
   file: