Add support for ceilometer custom event yaml

* event_definitions.yaml:
  This file provides a standard set of events and corresponding traits
that may be of interest.

* event_pipeline.yaml:
  This file can be modified to adjust which notifications to capture and
where to publish the events.

Change-Id: I9c1698e07b65102af9b3ee448ad07f8fa6428b74
Signed-off-by: ZijianGuo <guozijn@gmail.com>

ansible/roles/ceilometer/handlers/main.yml

@@ -25,10 +25,13 @@
     - service.enabled | bool
     - config_json.changed | bool
       or ceilometer_conf.changed | bool
+      or ceilometer_event_definitions_overwriting.changed | bool
+      or ceilometer_event_pipeline_overwriting.changed | bool
       or gnocchi_resources_overwriting.changed | bool
       or policy_overwriting.changed | bool
       or polling_overwriting.changed | bool
-      or ceilometer_events.changed | bool
+      or ceilometer_event_definitions.changed | bool
+      or ceilometer_event_pipeline.changed | bool
       or ceilometer_pipeline.changed | bool
       or ceilometer_notification_container.changed | bool
       or panko_conf.changed | bool

ansible/roles/ceilometer/tasks/config.yml

@@ -122,21 +122,77 @@
     - Restart ceilometer-compute container
     - Restart ceilometer-ipmi container
 
-- name: Copying over event yaml for notification service
+- name: Check custom event_definitions.yaml exists
+  local_action: stat path="{{ node_custom_config }}/ceilometer/event_definitions.yaml"
+  register: ceilometer_event_definitions_file
+
+- name: Copying over event_definitions.yaml
+  vars:
+    service: "{{ ceilometer_services['ceilometer-notification'] }}"
+  copy:
+    src: "{{ node_custom_config }}/ceilometer/event_definitions.yaml"
+    dest: "{{ node_config_directory }}/ceilometer-notification/event_definitions.yaml"
+    force: True
+    mode: "0660"
+  become: true
+  register: ceilometer_event_definitions_overwriting
+  when:
+    - ceilometer_event_definitions_file.stat.exists
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+  notify:
+    - Restart ceilometer-notification container
+
+- name: Copying over event_definitions.yaml for notification service
   vars:
     service: "{{ ceilometer_services['ceilometer-notification'] }}"
   template:
-    src: "{{ item }}.j2"
-    dest: "{{ node_config_directory }}/ceilometer-notification/{{ item }}"
+    src: "event_definitions.yaml.j2"
+    dest: "{{ node_config_directory }}/ceilometer-notification/event_definitions.yaml"
     mode: "0660"
   become: true
-  register: ceilometer_events
+  register: ceilometer_event_definitions
   when:
     - inventory_hostname in groups[service.group]
     - service.enabled | bool
-  with_items:
-    - "event_definitions.yaml"
-    - "event_pipeline.yaml"
+    - not ceilometer_event_definitions_file.stat.exists
+  notify:
+    - Restart ceilometer-notification container
+
+- name: Check custom event_pipeline.yaml exists
+  local_action: stat path="{{ node_custom_config }}/ceilometer/event_pipeline.yaml"
+  register: ceilometer_event_pipeline_file
+
+- name: Copying over event_pipeline.yaml
+  vars:
+    service: "{{ ceilometer_services['ceilometer-notification'] }}"
+  copy:
+    src: "{{ node_custom_config }}/ceilometer/event_pipeline.yaml"
+    dest: "{{ node_config_directory }}/ceilometer-notification/event_pipeline.yaml"
+    force: True
+    mode: "0660"
+  become: true
+  register: ceilometer_event_pipeline_overwriting
+  when:
+    - ceilometer_event_pipeline_file.stat.exists
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+  notify:
+    - Restart ceilometer-notification container
+
+- name: Copying over event_pipeline.yaml for notification service
+  vars:
+    service: "{{ ceilometer_services['ceilometer-notification'] }}"
+  template:
+    src: "event_pipeline.yaml.j2"
+    dest: "{{ node_config_directory }}/ceilometer-notification/event_pipeline.yaml"
+    mode: "0660"
+  become: true
+  register: ceilometer_event_pipeline
+  when:
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+    - not ceilometer_event_pipeline_file.stat.exists
   notify:
     - Restart ceilometer-notification container