ChefでCentOS 6.7 + rbenv + ruby 2.3.0の環境を構築する。

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rbenvをインストール

クックブックの生成

• 雛形生成

  % bin/kinfe cookbook create ruby-env -o site-cookbooks/

レシピを修正

• site-cookbooks/ruby-env/recipes/default.rb

  %w(gcc git openssl-devel).each do |pkg|
    package pkg do
      action :install
    end
  end

  git "/home/#{node['ruby-env']['user']}/.rbenv" do
    repository node['ruby-env']['rbenv_url']
    action :sync
    user node['ruby-env']['user']
    group node['ruby-env']['group']
  end

  template ".bash_profile" do
    source '.bash_profile.erb'
    path "/home/#{node['ruby-env']['user']}/.bash_profile"
    mode '0644'
    owner node['ruby-env']['user']
    group node['ruby-env']['group']
    not_if "grep rbenv ~/.bash_profile", :environment => {:'HOME' => "/home/#{node['ruby-env']['user']}"}
  end

属性値追加

• site-cookbooks/ruby-env/attributes/default.rb

  default['ruby-env']['user'] = 'vagrant'
  default['ruby-env']['group'] = 'vagrant'
  default['ruby-env']['version'] = '2.3.0'
  default['ruby-env']['rbenv_url'] = 'https://github.com/rbenv/rbenv.git'
  default['ruby-env']['ruby-build_url'] = 'https://github.com/rbenv/ruby-build.git'

テンプレート生成

• site-cookbooks/ruby-env/templates/default/.bash_profile.erb

  # .bash_profile

  # Get the aliases and functions
  if [ -f ~/.bashrc ]; then
    . ~/.bashrc
  fi

  # User specific environment and startup programs
  PATH=$PATH:$HOME/bin

  export PATH="$HOME/.rbenv/bin:$PATH"
  eval "$(rbenv init -)"

実行一覧にレシピを追加

  % bin/knife node run_list add dev 'recipe[ruby-env]' -z

  dev:
    run_list:
      recipe[yum-epel]
      recipe[yum-update]
      recipe[mariadb]
      recipe[ruby-env]

ノードに適用

  % bin/knife solo cook dev

実行結果

  % bin/knife solo cook dev

  Running Chef on dev...
  Checking Chef version...
  Installing Berkshelf cookbooks to 'cookbooks'...
  Resolving cookbook dependencies...
  Using yum (3.10.0)
  Using yum-epel (0.6.5)
  Vendoring yum (3.10.0) to cookbooks/yum
  Vendoring yum-epel (0.6.5) to cookbooks/yum-epel
  Uploading the kitchen...
  Generating solo config...
  Running Chef: sudo chef-solo -c ~/chef-solo/solo.rb -j ~/chef-solo/dna.json
  Starting Chef Client, version 12.7.2
  Compiling Cookbooks...
  Converging 11 resources
  Recipe: yum-epel::default
    * yum_repository[epel] action create
      * template[/etc/yum.repos.d/epel.repo] action create (up to date)
      * execute[yum clean metadata epel] action nothing (skipped due to action :nothing)
      * execute[yum-makecache-epel] action nothing (skipped due to action :nothing)
      * ruby_block[yum-cache-reload-epel] action nothing (skipped due to action :nothing)
       (up to date)
  Recipe: yum-update::default
    * execute[yum-update] action run
      - execute yum -y update
  Recipe: mariadb::default
    * cookbook_file[/etc/yum.repos.d/MariaDB.repo] action create (up to date)
    * yum_package[MariaDB-server] action install (up to date)
    * yum_package[MariaDB-client] action install (up to date)
    * yum_package[MariaDB-devel] action install (up to date)
  Recipe: ruby-env::default
    * yum_package[gcc] action install
      - install version 4.4.7-16.el6 of package gcc
    * yum_package[git] action install
      - install version 1.7.1-3.el6_4.1 of package git
    * yum_package[openssl-devel] action install
      - install version 1.0.1e-42.el6_7.2 of package openssl-devel
    * git[/home/vagrant/.rbenv] action sync
      - clone from https://github.com/rbenv/rbenv.git into /home/vagrant/.rbenv
      - checkout ref 29b4da77370af0a3413dce00a72c7631302a2b25 branch HEAD
    * template[.bash_profile] action create
      - update content in file /home/vagrant/.bash_profile from 173704 to cc39f6
      --- /home/vagrant/.bash_profile	2015-07-23 18:55:47.000000000 +0000
      +++ /home/vagrant/..bash_profile20160223-17719-yfseb1	2016-02-23 07:58:51.632306139 +0000
      @@ -2,12 +2,12 @@

       # Get the aliases and functions
       if [ -f ~/.bashrc ]; then
      -	. ~/.bashrc
      +  . ~/.bashrc
       fi

       # User specific environment and startup programs
      -
       PATH=$PATH:$HOME/bin

      -export PATH
      +export PATH="$HOME/.rbenv/bin:$PATH"
      +eval "$(rbenv init -)"
      - restore selinux security context

  Running handlers:
  Running handlers complete
  Chef Client finished, 6/15 resources updated in 21 seconds

ruby 2.3.0をインストール

レシピを修正

% git diff
diff --git a/site-cookbooks/ruby-env/recipes/default.rb b/site-cookbooks/ruby-env/recipes/default.rb
index 203539a..bbc8749 100644
--- a/site-cookbooks/ruby-env/recipes/default.rb
+++ b/site-cookbooks/ruby-env/recipes/default.rb
@@ -7,7 +7,7 @@
 # All rights reserved - Do Not Redistribute
 #

-%w(gcc git openssl-devel).each do |pkg|
+%w(gcc gcc-c++ git openssl-devel readline-devel).each do |pkg|
   package pkg do
     action :install
   end
@@ -28,3 +28,25 @@ template ".bash_profile" do
   group node['ruby-env']['group']
   not_if "grep rbenv ~/.bash_profile", :environment => {:'HOME' => "/home/#{node['ruby-env']['user']}"}
 end
+
+directory "/home/#{node['ruby-env']['user']}/.rbenv/plugins" do
+  owner node['ruby-env']['user']
+  group node['ruby-env']['group']
+  mode '0755'
+  action :create
+end
+
+git "/home/#{node['ruby-env']['user']}/.rbenv/plugins/ruby-build" do
+  repository node['ruby-env']['ruby-build_url']
+  action :sync
+  user node['ruby-env']['user']
+  group node['ruby-env']['group']
+end
+
+execute "rbenv install #{node['ruby-env']['version']}" do
+  command "/home/#{node['ruby-env']['user']}/.rbenv/bin/rbenv install #{node['ruby-env']['version']}"
+  user node['ruby-env']['user']
+  group node['ruby-env']['group']
+  environment 'HOME' => "/home/#{node['ruby-env']['user']}"
+  not_if { File.exists?("/home/#{node['ruby-env']['user']}/.rbenv/versions/#{node['ruby-env']['version']}") }
+end

ノードに適用

  % bin/knife solo cook dev

実行結果

  % bin/knife solo cook dev

  Running Chef on dev...
  Checking Chef version...
  Installing Berkshelf cookbooks to 'cookbooks'...
  Resolving cookbook dependencies...
  Using yum (3.10.0)
  Using yum-epel (0.6.5)
  Vendoring yum (3.10.0) to cookbooks/yum
  Vendoring yum-epel (0.6.5) to cookbooks/yum-epel
  Uploading the kitchen...
  Generating solo config...
  Running Chef: sudo chef-solo -c ~/chef-solo/solo.rb -j ~/chef-solo/dna.json
  Starting Chef Client, version 12.7.2
  Compiling Cookbooks...
  Converging 15 resources
  Recipe: yum-epel::default
    * yum_repository[epel] action create
      * template[/etc/yum.repos.d/epel.repo] action create (up to date)
      * execute[yum clean metadata epel] action nothing (skipped due to action :nothing)
      * execute[yum-makecache-epel] action nothing (skipped due to action :nothing)
      * ruby_block[yum-cache-reload-epel] action nothing (skipped due to action :nothing)
       (up to date)
  Recipe: yum-update::default
    * execute[yum-update] action run
      - execute yum -y update
  Recipe: mariadb::default
    * cookbook_file[/etc/yum.repos.d/MariaDB.repo] action create (up to date)
    * yum_package[MariaDB-server] action install (up to date)
    * yum_package[MariaDB-client] action install (up to date)
    * yum_package[MariaDB-devel] action install (up to date)
  Recipe: ruby-env::default
    * yum_package[gcc] action install (up to date)
    * yum_package[git] action install (up to date)
    * yum_package[openssl-devel] action install (up to date)
    * yum_package[readline-devel] action install
      - install version 6.0-4.el6 of package readline-devel
    * git[/home/vagrant/.rbenv] action sync (up to date)
    * template[.bash_profile] action create (skipped due to not_if)
    * directory[/home/vagrant/.rbenv/plugins] action create (up to date)
    * git[/home/vagrant/.rbenv/plugins/ruby-build] action sync (up to date)
    * execute[rbenv install 2.3.0] action run
      - execute /home/vagrant/.rbenv/bin/rbenv install 2.3.0

  Running handlers:
  Running handlers complete
  Chef Client finished, 3/19 resources updated in 04 minutes 13 seconds

補足

• いくつが設定が足りなかったため、リソースを追加した。

execute "rbenv global #{node['ruby-env']['version']}" do
  command "/home/#{node['user']}/.rbenv/bin/rbenv global #{node['ruby-env']['version']}"
  user node['user']
  group node['group']
  environment 'HOME' => "/home/#{node['user']}"
end

cookbook_file "/home/#{node['user']}/.gemrc" do
  owner node['user']
  group node['group']
  mode '0644'
end

%w(rbenv-rehash bundler).each do |gem|
  execute "gem install #{gem}" do
    command "/home/#{node['user']}/.rbenv/shims/gem install #{gem}"
    user node['user']
    group node['group']
    environment 'HOME' => "/home/#{node['user']}"
    not_if "/home/#{node['user']}/.rbenv/shims/gem list | grep #{gem}"
  end
end

参考

• https://docs.chef.io/
• Chef実践入門