initial checkin of augeas-based sysctl puppet module

2 files changed, 44 insertions, 0 deletions

diff --git a/README b/README
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+++ b/README
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+sysctl module
+-------------
+
+This puppet module handles the setting of variables in sysctl.conf, its
+a simple module that utilizes the puppet augeas built-in type and the
+sysctl binary. You must have the augeas ruby libraries installed to 
+use this type.
+
+You can set a value and a comment for that value using this module,
+some examples:
+
+sysctl::config { "vm.mmap_min_addr":
+    value => 32768,
+    comment => "Never mmap into the first 32k of memory",
+} 
+
+sysctl::config { "fs.file-max":
+    value => 65536,
+    comment => "Maximum number of filehandles",
+} 
diff --git a/manifests/init.pp b/manifests/init.pp
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+class sysctl {
+
+  define config ($value, $comment) {
+    file { "/etc/sysctl.conf":
+      mode => 644,
+      owner => root,
+      group => root,
+      ensure => present,
+    }
+
+    augeas { "sysctl_$name":
+      context => "/files/etc/sysctl.conf",
+      changes => [ "set $name $value", "insert #comment before $name",
+                   "set #comment[last()] '$comment'" ],
+      onlyif  => "get $name != $value",
+      notify  => Exec["/sbin/sysctl -p"],
+    }
+
+    exec { "/sbin/sysctl -p":
+      subscribe   => File["/etc/sysctl.conf"],
+      refreshonly => true,
+    }
+  }
+}