Fix Ansible assert boolean condition for RPM detection (#949)

* Update install.yml

Fix Ansible assert to use boolean condition for RPM check

* invalid Python/Jinja logic and with Ansible ≥2.15 strict conditionals

Author: mohaa7

ansible/fatimage.yml

@@ -152,7 +152,7 @@
       ansible.builtin.include_role:
         name: openondemand
         tasks_from: vnc_compute.yml
-      when: "'openondemand_desktop' or 'openondemand_matlab' in group_names"
+      when: "'openondemand_desktop' in group_names or 'openondemand_matlab' in group_names"
 
     - name: Open OnDemand Jupyter node
       ansible.builtin.include_role:

ansible/roles/lustre/tasks/install.yml

@@ -34,7 +34,8 @@
 
 - name: Check rpms found
   ansible.builtin.assert:
-    that: _lustre_find_rpms.files | length
+    that:
+      - _lustre_find_rpms.matched > 0
     fail_msg: "No lustre repos found with lustre_rpm_globs = {{ lustre_rpm_globs }}"
 
 - name: Install lustre rpms