Inject ceph grafana dashboard layouts

This change just adds the task to inject from the
ceph dashboard mgr module the required layouts
to show all the cluster metrics on the grafana
instance.
Since we're now able to push grafana layouts through
the ceph mgr module command, the dashboards configuration
template is no longer needed on containerized environments.
This commit also fixes the Vagrantfile IP static assigment
in the grafana section because it generates an issue (it's
the same of the mgr instance).
Finally, considering some deployments that use an external
grafana server instance, we reworked the 'grafana_server_addr'
assignment to address these requirements.

Signed-off-by: fmount <fpantano@redhat.com>
(cherry picked from commit 9bb11c7b2a)

Vagrantfile

@@ -184,7 +184,7 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
       grf.vm.hostname = "#{LABEL_PREFIX}grafana#{i}"
       if ASSIGN_STATIC_IP
         grf.vm.network :private_network,
-          ip: "#{PUBLIC_SUBNET}.3#{i}"
+          ip: "#{PUBLIC_SUBNET}.2#{i}"
       end
       # Virtualbox
       grf.vm.provider :virtualbox do |vb|

roles/ceph-dashboard/tasks/configure_dashboard.yml

@@ -192,3 +192,10 @@
   changed_when: false
   delegate_to: "{{ groups[mon_group_name][0] }}"
   run_once: true
+
+- name: inject grafana dashboard layouts
+  command: "{{ container_exec_cmd }} ceph dashboard grafana dashboards update"
+  delegate_to: "{{ groups[mon_group_name][0] }}"
+  run_once: true
+  changed_when: false
+  when: containerized_deployment | bool

roles/ceph-facts/tasks/facts.yml

@@ -318,6 +318,7 @@
     - groups.get(grafana_server_group_name, []) | length > 0
     - ip_version == 'ipv4'
     - dashboard_enabled | bool
+    - inventory_hostname in groups[grafana_server_group_name]
 
 - name: set grafana_server_addr fact - ipv6
   set_fact:
@@ -326,6 +327,25 @@
     - groups.get(grafana_server_group_name, []) | length > 0
     - ip_version == 'ipv6'
     - dashboard_enabled | bool
+    - inventory_hostname in groups[grafana_server_group_name]
+
+- name: set grafana_server_addr fact - ipv4 - (external instance)
+  set_fact:
+    grafana_server_addr: "{{ hostvars[groups.get(grafana_server_group_name, []) | first]['ansible_all_ipv4_addresses'] | ipaddr(public_network) | first }}"
+  when:
+    - groups.get(grafana_server_group_name, []) | length > 0
+    - ip_version == 'ipv4'
+    - dashboard_enabled | bool
+    - inventory_hostname not in groups[grafana_server_group_name]
+
+- name: set grafana_server_addr fact - ipv6 - (external instance)
+  set_fact:
+    grafana_server_addr: "{{ hostvars[groups.get(grafana_server_group_name, []) | first]['ansible_all_ipv6_addresses'] | ipaddr(public_network) | last | ipwrap }}"
+  when:
+    - groups.get(grafana_server_group_name, []) | length > 0
+    - ip_version == 'ipv6'
+    - dashboard_enabled | bool
+    - inventory_hostname not in groups[grafana_server_group_name]
 
 - name: set_fact use_new_ceph_iscsi package or old ceph-iscsi-config/cli
   set_fact: