dashboard: allow disabling of unused features

Unconfigured dashboard features can lead to empty tabs in the dashboard
containing no meaningful content. Allow users to disable dashboard features
they know will not be used.

A list of features to be disabled allows the user to define a streamlined
dashboard as standard across deployments. Defaults to disabling no features,
ensuring that users are sure they do not need the dashboard feature before
disabling it.

Signed-off-by: Alex Lambert <lamberta@microsoft.com>

group_vars/all.yml.sample

@@ -654,6 +654,7 @@ dummy:
 #dashboard_rgw_api_admin_resource: ''
 #dashboard_rgw_api_no_ssl_verify: False
 #dashboard_frontend_vip: ''
+#dashboard_disabled_features: []
 #prometheus_frontend_vip: ''
 #alertmanager_frontend_vip: ''
 #node_exporter_container_image: "docker.io/prom/node-exporter:v0.17.0"

group_vars/rhcs.yml.sample

@@ -654,6 +654,7 @@ containerized_deployment: true
 #dashboard_rgw_api_admin_resource: ''
 #dashboard_rgw_api_no_ssl_verify: False
 #dashboard_frontend_vip: ''
+#dashboard_disabled_features: []
 #prometheus_frontend_vip: ''
 #alertmanager_frontend_vip: ''
 node_exporter_container_image: registry.redhat.io/openshift4/ose-prometheus-node-exporter:v4.6

roles/ceph-dashboard/tasks/configure_dashboard.yml

@@ -188,6 +188,13 @@
     CEPH_CONTAINER_IMAGE: "{{ ceph_docker_registry + '/' + ceph_docker_image + ':' + ceph_docker_image_tag if containerized_deployment | bool else None }}"
     CEPH_CONTAINER_BINARY: "{{ container_binary }}"
 
+- name: disable unused dashboard features
+  command: "{{ container_exec_cmd }} ceph --cluster {{ cluster }} dashboard feature disable {{ item }}"
+  delegate_to: "{{ groups[mon_group_name][0] }}"
+  run_once: true
+  changed_when: false
+  with_items: "{{ dashboard_disabled_features }}"
+
 - name: set grafana api user
   command: "{{ container_exec_cmd }} ceph --cluster {{ cluster }} dashboard set-grafana-api-username {{ grafana_admin_user }}"
   delegate_to: "{{ groups[mon_group_name][0] }}"

roles/ceph-defaults/defaults/main.yml

@@ -646,6 +646,7 @@ dashboard_rgw_api_user_id: ceph-dashboard
 dashboard_rgw_api_admin_resource: ''
 dashboard_rgw_api_no_ssl_verify: False
 dashboard_frontend_vip: ''
+dashboard_disabled_features: []
 prometheus_frontend_vip: ''
 alertmanager_frontend_vip: ''
 node_exporter_container_image: "docker.io/prom/node-exporter:v0.17.0"