The home directory can differ from the install dir.

tasks/main.yml

@@ -4,8 +4,8 @@
   - name: Create the user that will run the springboot app {{ item.name }}
     user:
       name: '{{ item.user }}'
-      home: '{{ item.install_dir }}'
-      createhome: false
+      home: '{% if item.user_home is defined %}{{ item.user_home }}{% else %}{{ item.install_dir }}{% endif %}'
+      createhome: '{{ item.createhome | default(false) }}'
       shell: '{{ item.user_shell | default(springboot_user_shell) }}'
       system: '{{ item.system_user | default(springboot_system_user) }}'
     loop: '{{ springboot_apps }}'