Allow user to specify grafana_server_fqdn

This is needed to get a TLS certificate to validate correctly.

If unspecified, auto-detected grafana_server_addr is used.

Signed-off-by: Paulo Matias <matias@ufscar.br>
(cherry picked from commit 38ce02c2ea)

group_vars/all.yml.sample

@@ -762,6 +762,8 @@ dummy:
 #grafana_crt: ''
 #grafana_key: ''
 #grafana_container_image: "grafana/grafana:5.4.3"
+# When using https, please fill with a hostname for which grafana_crt is valid.
+#grafana_server_fqdn: ''
 #grafana_container_cpu_period: 100000
 #grafana_container_cpu_cores: 2
 # container_memory is in GB

group_vars/rhcs.yml.sample

@@ -762,6 +762,8 @@ node_exporter_container_image: registry.redhat.io/openshift4/ose-prometheus-node
 #grafana_crt: ''
 #grafana_key: ''
 grafana_container_image: registry.redhat.io/rhceph/rhceph-4-dashboard-rhel8:4
+# When using https, please fill with a hostname for which grafana_crt is valid.
+#grafana_server_fqdn: ''
 #grafana_container_cpu_period: 100000
 #grafana_container_cpu_cores: 2
 # container_memory is in GB

roles/ceph-dashboard/tasks/configure_grafana_layouts.yml

@@ -1,6 +1,6 @@
 ---
 - name: set grafana url
-  command: "{{ container_exec_cmd }} ceph --cluster {{ cluster }} dashboard set-grafana-api-url {{ dashboard_protocol }}://{{ grafana_server_addr }}:{{ grafana_port }}"
+  command: "{{ container_exec_cmd }} ceph --cluster {{ cluster }} dashboard set-grafana-api-url {{ dashboard_protocol }}://{{ grafana_server_fqdn | default(grafana_server_addr, true) }}:{{ grafana_port }}"
   delegate_to: "{{ groups[mon_group_name][0] }}"
   run_once: true
   changed_when: false

roles/ceph-defaults/defaults/main.yml

@@ -754,6 +754,8 @@ grafana_admin_user: admin
 grafana_crt: ''
 grafana_key: ''
 grafana_container_image: "grafana/grafana:5.4.3"
+# When using https, please fill with a hostname for which grafana_crt is valid.
+grafana_server_fqdn: ''
 grafana_container_cpu_period: 100000
 grafana_container_cpu_cores: 2
 # container_memory is in GB