Merge "Disable Monasca Log Metrics service by default"

ansible/roles/monasca/defaults/main.yml

@@ -39,7 +39,7 @@ monasca_services:
   monasca-log-metrics:
     container_name: monasca_log_metrics
     group: monasca-log-metrics
-    enabled: true
+    enabled: "{{ monasca_enable_log_metrics_service | bool }}"
     image: "{{ monasca_logstash_image_full }}"
     volumes: "{{ monasca_log_metrics_default_volumes + monasca_log_metrics_extra_volumes }}"
     dimensions: "{{ monasca_log_metrics_dimensions }}"
@@ -125,6 +125,11 @@ monasca_influxdb_retention_policy:
 ####################
 # Monasca
 ####################
+
+# NOTE(dszumski): This can be removed in the Xena cycle when the
+# log metrics service is removed
+monasca_enable_log_metrics_service: False
+
 monasca_kafka_servers: "{% for host in groups['kafka'] %}{{ 'api' | kolla_address(host) | put_address_in_context('url') }}:{{ kafka_port }}{% if not loop.last %},{% endif %}{% endfor %}"
 monasca_zookeeper_servers: "{% for host in groups['zookeeper'] %}{{ 'api' | kolla_address(host) | put_address_in_context('url') }}:{{ zookeeper_client_port }}{% if not loop.last %},{% endif %}{% endfor %}"
 monasca_memcached_servers: "{% for host in groups['memcached'] %}{{ 'api' | kolla_address(host) | put_address_in_context('memcache') }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}"

doc/source/reference/logging-and-monitoring/monasca-guide.rst

@@ -329,6 +329,11 @@ which you must run the cleanup command is given below:
 
 - Upgrading from Victoria to Wallaby to remove the unused Monasca Log
   Transformer service
+- Upgrading from Victoria to Wallaby to remove the Monasca Log Metrics
+  service, unless the option to disable it by default has been overridden in
+  Wallaby.
+- Upgrading from Wallaby to Xena to remove the Monasca Log Metrics service
+  if the option to disable it by default was overridden in Wallaby.
 
 The cleanup command can be invoked from the Kolla Ansible CLI, for example:
 
@@ -371,7 +376,7 @@ Monasca will deploy the following Docker containers:
 * Monasca Agent Statsd
 * Monasca API
 * Monasca Log API
-* Monasca Log Metrics (Logstash)
+* Monasca Log Metrics (Logstash, optional, deprecated)
 * Monasca Log Persister (Logstash)
 * Monasca Notification
 * Monasca Persister

releasenotes/notes/deprecate-monasca-log-metrics-service-d558015f1cf426df.yaml

+---
+upgrade:
+  - |
+    The Monasca Log Metrics service has been deprecated and is now
+    disabled by default. If you wish to enable it, you can set
+    `monasca_enable_log_metrics_service` to `True` in `globals.yml`.
+deprecations:
+  - |
+    The Monasca Log Metrics service has been deprecated and will be
+    removed in the Xena release.