logrotate stack: rotate cron log

stack/logrotate/buildout.cfg

@@ -11,7 +11,7 @@ recipe = slapos.recipe.template:jinja2
 template = ${:_profile_base_location_}/${:filename}.in
 rendered = ${buildout:directory}/${:filename}
 filename = instance-logrotate-base.cfg
-md5sum = af19ff0c7817df85987c69738fb083f2
+md5sum = 4f940a5b5a6abac039738b45633c709c
 context =
     key dcron_location dcron:location
     key gzip_location gzip:location

stack/logrotate/instance-logrotate-base.cfg.in

 [buildout]
 parts =
   cron-entry-logrotate
+  logrotate-entry-cron
 
 [cron]
 recipe = slapos.cookbook:cron
@@ -34,6 +35,16 @@ name = logrotate
 frequency = 0 0 * * *
 command = ${logrotate:wrapper}
 
+[logrotate-entry-base]
+recipe = slapos.cookbook:logrotate.d
+logrotate-entries = ${logrotate:logrotate-entries}
+backup = ${logrotate-directory:backup}
+
+[logrotate-entry-cron]
+<= logrotate-entry-base
+name = crond
+log = ${cron-simplelogger:log}
+
 [logrotate-directory]
 recipe = slapos.cookbook:mkdirectory
 cron-entries = ${:etc}/cron.d