dashboard: disable facts gathering

This is already done in the main playbooks but absent in the dashboard
playbook.
The facts are already gathered during the first play of the main
playbooks so we don't need to doing twice.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 5ae7304ace)

infrastructure-playbooks/dashboard.yml

@@ -1,5 +1,6 @@
 ---
 - hosts: all
+  gather_facts: false
   become: true
   pre_tasks:
     - name: set ceph node exporter install 'In Progress'
@@ -32,6 +33,7 @@
             end: "{{ lookup('pipe', 'date +%Y%m%d%H%M%SZ') }}"
 
 - hosts: "{{ grafana_server_group_name }}"
+  gather_facts: false
   become: true
   pre_tasks:
     - name: set ceph grafana install 'In Progress'
@@ -68,6 +70,7 @@
 # using groups[] here otherwise it can't fallback to the mon if there's no mgr group.
 # adding an additional | default(omit) in case where no monitors are present (external ceph cluster)
 - hosts: "{{ groups[mgr_group_name] | default(groups[mon_group_name]) | default(omit) }}"
+  gather_facts: false
   become: true
   pre_tasks:
     - name: set ceph dashboard install 'In Progress'