stack/logrotate: Use xz instead of gzip for log compression.

stack/logrotate/buildout.cfg

@@ -2,7 +2,7 @@
 extends =
   buildout.hash.cfg
   ../../component/dcron/buildout.cfg
-  ../../component/gzip/buildout.cfg
+  ../../component/xz-utils/buildout.cfg
   ../../component/logrotate/buildout.cfg
 parts =
   template-logrotate-base
@@ -25,7 +25,7 @@ template = ${:_profile_base_location_}/${:filename}
 rendered = ${buildout:directory}/instance-logrotate-base.cfg
 context =
     key dcron_location dcron:location
-    key gzip_location gzip:location
+    key xz_location xz-utils:location
     key logrotate_location logrotate:location
     key logrotate_conf_template logrotate-conf-template:target
     key logrotate_entry_template logrotate-entry-template:target

stack/logrotate/buildout.hash.cfg

@@ -14,7 +14,7 @@
 # not need these here).
 [logrotate-conf-template]
 filename = logrotate.conf.in
-md5sum = 67954c82a8030e5dcac3a8c5d115f624
+md5sum = 2fc0ea335969ffab7d8c4f98e3d04ae7
 
 [logrotate-entry-template]
 filename = logrotate_entry.in
@@ -22,4 +22,4 @@ md5sum = 117e46af6d9d31c09eeb86089d11407e
 
 [template-logrotate-base]
 filename = instance-logrotate-base.cfg.in
-md5sum = f56b86a0742afff931a5e972114566e4
+md5sum = 49bf4c88448c7366c080e4b3948b9b65

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

@@ -28,8 +28,8 @@ wrapper = ${logrotate-directory:bin}/cron_simplelogger
 log = ${logrotate-directory:log}/cron.log
 
 [logrotate-conf-parameter]
-gzip-binary = {{ gzip_location }}/bin/gzip
-gunzip-binary = {{ gzip_location }}/bin/gunzip
+compress-binary = {{ xz_location }}/bin/xz
+uncompress-binary = {{ xz_location }}/bin/unxz
 logrotate-entries = ${logrotate-directory:logrotate-entries}
 
 [logrotate-conf]

stack/logrotate/logrotate.conf.in

-compresscmd {{ parameter_dict['gzip-binary'] }}
+compresscmd {{ parameter_dict['compress-binary'] }}
 compressoptions -9
-uncompresscmd {{ parameter_dict['gunzip-binary'] }}
+uncompresscmd {{ parameter_dict['uncompress-binary'] }}
 include {{ parameter_dict['logrotate-entries'] }}