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Chefでopscode-cookbooksのselinuxレシピを使う

Last updated at Posted at 2013-05-28

opscodeのpublic cookbooksを使ってselinuxを無効化するサンプルです。

このサンプルでは、chef-soloを使ってローカルホストに対してレシピを実行します。
レシピ管理にはBerkshelfを使い、serverspecでテストします。

使用するレシピ

Opscode Cookbook selinux
https://github.com/opscode-cookbooks/selinux

レシピのダウンロード

Berksfile
site :opscode
cookbook 'selinux'
bundle exec berks install --path vendor/cookbooks

レシピを読む

vendor/cookbooks/selinux/recipes/disabled.rb

# setenforce 0で一時的にSELinuxを無効化し、
# /etc/selinux/configの作成を通知する
# selinuxenabledコマンドの終了ステータスが0(selinuxが有効)の場合だけ実行される
execute "disable selinux enforcement" do
  only_if "which selinuxenabled && selinuxenabled"
  command "setenforce 0"
  action :run
  notifies :create, "template[/etc/selinux/config]"
end

# 再起動の際もSELinuxの無効状態を維持するために、
# /etc/selinux/configに、設定を記述する
template "/etc/selinux/config" do
  source "sysconfig/selinux.erb"
  variables(
    :selinux => "disabled",
    :selinuxtype => "targeted"
  )
  action :nothing
end

レシピの実行

nodes/localhost.json
{
    "run_list":[
        "recipe[selinux::disabled]"
    ]
}
sudo bundle exec chef-solo -c solo.rb -j nodes/localhost.json

serverspecでテスト

spec/localhost/selinux_disabled_spec.rb
require 'spec_helper'

describe selinux do
  it { should be_disabled }
end

describe file('/etc/selinux/config') do
  it { should be_file }
  it { should contain "SELINUX=disabled" }
end
bundle exec rake spec
SELinux
  should be disabled

File "/etc/selinux/config"
  should be file
  should contain "SELINUX=disabled"

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