enterprise: Restart all Zulip processes every week

(imported from commit e44167023e0ad49eaf14c314a7731b93289900e6)

puppet/zulip/files/cron.d/restart-zulip

@@ -0,0 +1,5 @@
+SHELL=/bin/bash
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+USER=zulip
+
+0 6 * * 7 zulip supervisorctl restart all

puppet/zulip/manifests/enterprise.pp

@@ -32,6 +32,14 @@ class zulip::enterprise {
     group  => 'zulip',
   }
 
+  file { "/etc/cron.d/restart-zulip":
+    ensure => file,
+    owner  => "root",
+    group  => "root",
+    mode => 644,
+    source => "puppet:///modules/zulip/cron.d/restart-zulip",
+  }
+
   file { '/etc/postgresql/9.1/main/postgresql.conf.template':
     require => Package["postgresql-9.1"],
     ensure => file,