Revert "Revert "Rerun inventory before collect-logs""

This reverts commit 44ee46e826.

'timeout' in deploy command doesn't work always and we can't
realy on it that it will stop deployment in time and allow
openstack nodes to be added to inventory.

Change-Id: I744aea580d9f22a930a86772847c9665c012dd2a
Related-Bug: #1743436

playbooks/collect-logs.yml

@@ -4,6 +4,17 @@
   roles:
     - dump_vars
 
+- name: Ensure the overcloud nodes are added to the generated inventory
+  hosts: undercloud
+  gather_facts: yes
+  tags:
+    - collect-logs
+  vars:
+      inventory: all
+  roles:
+    - tripleo-inventory
+  ignore_errors: yes
+
 - name: Collect logs
   hosts: all:!localhost:!127.0.0.2
   roles: