Add logrotate meta configuration for Keystone

	- parametrize interval and rotation

Related: PROD-29848

Change-Id: Ifb71c6e457f97dca20089c187591b982dfa6adc3
diff --git a/keystone/meta/logrotate.yml b/keystone/meta/logrotate.yml
new file mode 100644
index 0000000..276e1ef
--- /dev/null
+++ b/keystone/meta/logrotate.yml
@@ -0,0 +1,25 @@
+## Default: Daily rotation with 28 rotations kept
+{%- from "keystone/map.jinja" import server, client with context %}
+
+{%- if server.get('enabled', False) %}
+  {%- set log_interval = server.get('logrotate', {}).get('interval', 'weekly') %}
+  {%- set log_rotation = server.get('logrotate', {}).get('rotate', 4) %}
+{%- elif client.get('enabled', False) %}
+  {%- set log_interval = client.get('logrotate', {}).get('interval', 'weekly') %}
+  {%- set log_rotation = client.get('logrotate', {}).get('rotate', 4) %}
+{%- endif %}
+
+{%- if server.get('enabled', False) or client.get('enabled', False) %}
+job:
+  keystone:
+    - files:
+        - /var/log/keystone/*.log
+      options:
+        - {{ log_interval }}
+        - rotate: {{ log_rotation }}
+        - missingok
+        - compress
+        - delaycompress
+        - copytruncate
+        - notifempty
+{%- endif %}