Add support for Ceilometer custom polling.yaml

By default, Ceilometer uses polling.yaml as cfg_file [1][2] that defines
the limit default numbers of metrics polled. Users may want to define
their own polled metrics.

[1] https://github.com/openstack/ceilometer/blob/master/ceilometer/polling/manager.py#L54
[2] https://github.com/openstack/ceilometer/blob/master/etc/ceilometer/polling.yaml

Change-Id: Iadd627ca3c767453e71c8a0c2044f00f30055f16

ansible/roles/ceilometer/handlers/main.yml

@@ -7,6 +7,7 @@
     ceilometer_conf: "{{ ceilometer_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
     ceilometer_pipeline: "{{ ceilometer_pipelines.results|selectattr('item.key', 'equalto', service_name)|first }}"
     policy_overwriting: "{{ ceilometer_policy_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    polling_overwriting: "{{ ceilometer_polling_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
     ceilometer_notification_container: "{{ check_ceilometer_containers.results|selectattr('item.key', 'equalto', service_name)|first }}"
     panko_conf: "{{ panko_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
   kolla_docker:
@@ -35,6 +36,7 @@
     ceilometer_conf: "{{ ceilometer_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
     ceilometer_pipeline: "{{ ceilometer_pipelines.results|selectattr('item.key', 'equalto', service_name)|first }}"
     policy_overwriting: "{{ ceilometer_policy_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    polling_overwriting: "{{ ceilometer_polling_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
     ceilometer_central_container: "{{ check_ceilometer_containers.results|selectattr('item.key', 'equalto', service_name)|first }}"
   kolla_docker:
     action: "recreate_or_restart_container"
@@ -60,6 +62,7 @@
     ceilometer_conf: "{{ ceilometer_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
     ceilometer_pipeline: "{{ ceilometer_pipelines.results|selectattr('item.key', 'equalto', service_name)|first }}"
     policy_overwriting: "{{ ceilometer_policy_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    polling_overwriting: "{{ ceilometer_polling_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
     ceilometer_compute_container: "{{ check_ceilometer_containers.results|selectattr('item.key', 'equalto', service_name)|first }}"
   kolla_docker:
     action: "recreate_or_restart_container"

ansible/roles/ceilometer/tasks/config.yml

@@ -12,6 +12,32 @@
     - item.value.enabled | bool
   with_dict: "{{ ceilometer_services }}"
 
+- name: Check custom polling.yaml exists
+  local_action: stat path="{{ node_custom_config }}/ceilometer/polling.yaml"
+  register: ceilometer_polling_file
+
+- name: Copying over polling.yaml
+  copy:
+    src: "{{ node_custom_config }}/ceilometer/polling.yaml"
+    dest: "{{ node_config_directory }}/{{ item.key }}/polling.yaml"
+    force: True
+    mode: "0600"
+  become: true
+  register: ceilometer_polling_overwriting
+  when:
+    - ceilometer_polling_file.stat.exists
+    - inventory_hostname in groups[item.value.group]
+    - item.value.enabled | bool
+  with_dict: "{{ ceilometer_services }}"
+  notify:
+    - "Restart {{ item.key }} container"
+
+- name: Set ceilometer polling file's path
+  set_fact:
+    ceilometer_polling_file_path: "{{ ceilometer_polling_file.stat.path }}"
+  when:
+    - ceilometer_polling_file.stat.exists
+
 - name: Check if policies shall be overwritten
   local_action: stat path="{{ item }}"
   run_once: True

ansible/roles/ceilometer/templates/ceilometer-central.json.j2

@@ -6,7 +6,13 @@
             "dest": "/etc/ceilometer/ceilometer.conf",
             "owner": "ceilometer",
             "perm": "0600"
-        }{% if ceilometer_policy_file is defined %},
+        }{% if ceilometer_polling_file_path is defined %},
+        {
+            "source": "{{ container_config_directory }}/polling.yaml",
+            "dest": "/etc/ceilometer/polling.yaml",
+            "owner": "ceilometer",
+            "perm": "0600"
+        }{% endif %}{% if ceilometer_policy_file is defined %},
         {
             "source": "{{ container_config_directory }}/{{ ceilometer_policy_file }}",
             "dest": "/etc/ceilometer/{{ ceilometer_policy_file }}",

ansible/roles/ceilometer/templates/ceilometer-compute.json.j2

@@ -6,7 +6,13 @@
             "dest": "/etc/ceilometer/ceilometer.conf",
             "owner": "ceilometer",
             "perm": "0600"
-        }{% if ceilometer_policy_file is defined %},
+        }{% if ceilometer_polling_file_path is defined %},
+        {
+            "source": "{{ container_config_directory }}/polling.yaml",
+            "dest": "/etc/ceilometer/polling.yaml",
+            "owner": "ceilometer",
+            "perm": "0600"
+        }{% endif %}{% if ceilometer_policy_file is defined %},
         {
             "source": "{{ container_config_directory }}/{{ ceilometer_policy_file }}",
             "dest": "/etc/ceilometer/{{ ceilometer_policy_file }}",

ansible/roles/ceilometer/templates/ceilometer-notification.json.j2

@@ -24,7 +24,13 @@
             "dest": "/etc/ceilometer/pipeline.yaml",
             "owner": "ceilometer",
             "perm": "0600"
-        }{% if ceilometer_policy_file is defined %},
+        }{% if ceilometer_polling_file_path is defined %},
+        {
+            "source": "{{ container_config_directory }}/polling.yaml",
+            "dest": "/etc/ceilometer/polling.yaml",
+            "owner": "ceilometer",
+            "perm": "0600"
+        }{% endif %}{% if ceilometer_policy_file is defined %},
         {
             "source": "{{ container_config_directory }}/{{ ceilometer_policy_file }}",
             "dest": "/etc/ceilometer/{{ ceilometer_policy_file }}",