initial commit

Author: nukemberg

README.rdoc

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+= DESCRIPTION:
+Set sysctl values from Chef!
+
+= REQUIREMENTS:
+
+= ATTRIBUTES:
+node[:sysctl] = A namespace for sysctl settings.
+
+= USAGE:
+There are two ways of setting sysctl values:
+1. Set chef attributes in the _sysctl_ namespace, E.G.:
+<tt>default[:sysctl][:vm][:swappiness] = 20</tt>
+2. Set values in a cookbook_file - 69-chef-static.conf
+

metadata.json

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+{
+  "name": "sysctl",
+  "description": "Configures sysctl parameters",
+  "long_description": "= DESCRIPTION:\nSet sysctl values from Chef!\n\n= REQUIREMENTS:\n\n= ATTRIBUTES:\nnode[:sysctl] = A namespace for sysctl settings.\n\n= USAGE:\nThere are two ways of setting sysctl values:\n1. Set chef attributes in the _sysctl_ namespace, E.G.:\n<tt>default[:sysctl][:vm][:swappiness] = 20</tt>\n2. Set values in a cookbook_file - 69-chef-static.conf\n\n",
+  "maintainer": "Fewbytes Technologies",
+  "maintainer_email": "[email protected]",
+  "license": "Apache v2.0",
+  "platforms": {
+    "ubuntu": ">= 0.0.0",
+    "debian": ">= 0.0.0"
+  },
+  "dependencies": {
+  },
+  "recommendations": {
+  },
+  "suggestions": {
+  },
+  "conflicting": {
+  },
+  "providing": {
+  },
+  "replacing": {
+  },
+  "attributes": {
+  },
+  "groupings": {
+  },
+  "recipes": {
+  },
+  "version": "0.1.0"
+}

metadata.rb

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+maintainer       "Fewbytes Technologies"
+maintainer_email "[email protected]"
+license          "Apache v2.0"
+description      "Configures sysctl parameters"
+long_description IO.read(File.join(File.dirname(__FILE__), 'README.rdoc'))
+version          "0.1.0"
+supports         "ubuntu"
+supports         "debian"

recipes/default.rb

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+#
+# Cookbook Name:: sysctl
+# Recipe:: default
+#
+# Copyright 2011, Fewbytes Technologies LTD
+#
+
+def compile_attr(prefix, v)
+  case v
+  when Array
+    return "#{prefix}=#{v.join(" ")}"
+  when String, Fixnum, Float, Symbol
+    "#{prefix}=#{v}"
+  when Hash, Chef::Node::Attribute
+    prefix += "." unless prefix.empty?
+    return v.map {|key, value| compile_attr("#{prefix}#{key}", value)}.flatten
+  else
+    raise Chef::Exceptions::UnsupportedAction, "Sysctl cookbook can't handle values of type: #{v.class}"
+  end
+end
+
+if node.attribute?(:sysctl)
+
+  attr_txt = compile_attr("", node[:sysctl]).join("\n") + "\n"
+
+  file "/etc/sysctl.d/68-chef-attributes.conf" do
+    content attr_txt
+    mode "0644"
+    notifies :start, "service[procps]"
+  end
+end
+
+cookbook_file "/etc/sysctl.d/69-chef-static.conf" do
+  ignore_failure true
+  mode "0644"
+  notifies :start, "service[procps]"
+end
+
+service "procps"