Add support for ceilometer custom pipeline.yaml

This file can be modified to adjust polling intervals or other configurations.
We can add a custom 'pipeline.yaml' file to override it.

Change-Id: I325523edc4f7e37db55a2e21fe52e76138e6d114
Signed-off-by: ZijianGuo <guozijn@gmail.com>

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 }}"
     gnocchi_resources_overwriting: "{{ ceilometer_gnocchi_resources_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    pipeline_overwriting: "{{ ceilometer_pipeline_overwriting.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 }}"
@@ -26,6 +27,7 @@
     - config_json.changed | bool
       or ceilometer_conf.changed | bool
       or gnocchi_resources_overwriting.changed | bool
+      or pipeline_overwriting.changed | bool
       or policy_overwriting.changed | bool
       or polling_overwriting.changed | bool
       or ceilometer_events.changed | bool
@@ -41,6 +43,7 @@
     ceilometer_conf: "{{ ceilometer_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
     ceilometer_pipeline: "{{ ceilometer_pipelines.results|selectattr('item.key', 'equalto', service_name)|first }}"
     gnocchi_resources_overwriting: "{{ ceilometer_gnocchi_resources_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    pipeline_overwriting: "{{ ceilometer_pipeline_overwriting.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 }}"
@@ -60,6 +63,7 @@
       or ceilometer_conf.changed | bool
       or ceilometer_pipeline.changed | bool
       or gnocchi_resources_overwriting.changed | bool
+      or pipeline_overwriting.changed | bool
       or policy_overwriting.changed | bool
       or polling_overwriting.changed | bool
       or ceilometer_central_container.changed | bool
@@ -72,6 +76,7 @@
     ceilometer_conf: "{{ ceilometer_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
     ceilometer_pipeline: "{{ ceilometer_pipelines.results|selectattr('item.key', 'equalto', service_name)|first }}"
     gnocchi_resources_overwriting: "{{ ceilometer_gnocchi_resources_overwriting.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    pipeline_overwriting: "{{ ceilometer_pipeline_overwriting.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 }}"
@@ -92,6 +97,7 @@
       or ceilometer_conf.changed | bool
       or ceilometer_pipeline.changed | bool
       or gnocchi_resources_overwriting.changed | bool
+      or pipeline_overwriting.changed | bool
       or policy_overwriting.changed | bool
       or polling_overwriting.changed | bool
       or vcenter_ca_file.changed | bool

ansible/roles/ceilometer/tasks/config.yml

@@ -140,6 +140,32 @@
   notify:
     - Restart ceilometer-notification container
 
+- name: Check custom pipeline.yaml exists
+  local_action: stat path="{{ node_custom_config }}/ceilometer/pipeline.yaml"
+  register: ceilometer_pipeline_file
+
+- name: Copying over pipeline.yaml
+  vars:
+    services_require_pipeline:
+      - ceilometer-compute
+      - ceilometer-central
+      - ceilometer-notification
+  copy:
+    src: "{{ node_custom_config }}/ceilometer/pipeline.yaml"
+    dest: "{{ node_config_directory }}/{{ item.key }}/pipeline.yaml"
+    force: True
+    mode: "0660"
+  become: true
+  register: ceilometer_pipeline_overwriting
+  when:
+    - ceilometer_pipeline_file.stat.exists
+    - inventory_hostname in groups[item.value.group]
+    - item.value.enabled | bool
+    - item.key in services_require_pipeline
+  with_dict: "{{ ceilometer_services }}"
+  notify:
+    - "Restart {{ item.key }} container"
+
 - name: Copying over pipeline.yaml file
   vars:
     services_require_pipeline:
@@ -156,6 +182,7 @@
     - inventory_hostname in groups[item.value.group]
     - item.value.enabled | bool
     - item.key in services_require_pipeline
+    - not ceilometer_pipeline_file.stat.exists
   with_dict: "{{ ceilometer_services }}"
   notify:
     - "Restart {{ item.key }} container"