Make cron logfile minsize,maxsize configurable

This patch is moving minsize and maxsize logrotate
options to defaults and use them in template.

Change-Id: Ic2dfc747faedef8a7a4bc5e61db7c0cb5bf93e88

ansible/roles/common/defaults/main.yml

@@ -95,6 +95,8 @@ kolla_toolbox_extra_volumes: "{{ default_extra_volumes }}"
 cron_extra_volumes: "{{ default_extra_volumes }}"
 fluentd_extra_volumes: "{{ default_extra_volumes }}"
 
+cron_logrotate_log_maxsize: "100M"
+cron_logrotate_log_minsize: "30M"
 cron_logrotate_rotation_interval: "weekly"
 cron_logrotate_rotation_count: 6
 

ansible/roles/common/templates/cron-logrotate-global.conf.j2

@@ -12,9 +12,9 @@ notifempty
 
 missingok
 
-minsize 30M
+minsize {{ cron_logrotate_log_minsize }}
 
-maxsize 100M
+maxsize {{ cron_logrotate_log_maxsize }}
 
 su root kolla
 

releasenotes/notes/cron-minsize-maxsize-c647add8e8156b79.yaml

+---
+features:
+  - |
+    Adds new variables to be used by the common role,
+    ``cron_logrotate_log_minsize`` and ``cron_logrotate_log_maxsize``.
+    They allow to configure global logrotate's minsize and maxsize
+    options.