Module: Elzar::Assistant

Defined in:
lib/elzar/assistant.rb

Constant Summary collapse

ELZAR_DIR = 
'elzar'
CHEF_SOLO_DIR = 
'/tmp/chef-solo'

Class Method Summary collapse

Class Method Details

.cp(*args) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 73

def self.cp(*args)
  FileUtils.cp(*args)
end

.cp_r(*args) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 77

def self.cp_r(*args)
  FileUtils.cp_r(*args)
end

.create_authorized_key_data_bag(authorized_keys, dest) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 88

def self.create_authorized_key_data_bag(authorized_keys, dest)
  data_bag_dir = "#{dest}/data_bags/deploy"
  FileUtils.mkdir_p data_bag_dir
  File.open("#{data_bag_dir}/authorized_keys.json", 'w+') do |f|
    f.write MultiJson.dump("id" => "authorized_keys", "keys" => authorized_keys)
  end
end

.create_dna_json(dest, app_name, database, ruby_version) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 81

def self.create_dna_json(dest, app_name, database, ruby_version)
  content = MultiJson.load(File.read("#{Elzar.templates_dir}/dna.json"))
  content['rails_app']['name'] = app_name
  ChefDNA.gene_splice(content, database, ruby_version)
  File.open("#{dest}/dna.json", 'w+') {|f| f.write MultiJson.dump(content) }
end

.create_user_provision_dir(dest, local = false) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 23

def self.create_user_provision_dir(dest, local=false)
  FileUtils.mkdir_p dest
  cp "#{Elzar.templates_dir}/dna.json", dest
  cp "#{Elzar.templates_dir}/Gemfile", dest
  cp "#{Elzar.templates_dir}/upgrade-chef.sh", dest
  cp "#{Elzar.templates_dir}/.rvmrc", dest
  cp "#{Elzar.templates_dir}/README.md", dest
  cp_r "#{Elzar.templates_dir}/data_bags", dest
  cp_r "#{Elzar.templates_dir}/script", dest
  cp_r "#{Elzar.templates_dir}/.chef", dest
end

.generate_files(dest, options = {}) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 10

def self.generate_files(dest, options={})
  vm_host_name = options[:app_name] ?
    "#{options[:app_name].gsub('_','-')}.local" : "elzar.thinkrelevance.com"
  Template.generate 'Vagrantfile', dest, :vm_host_name => vm_host_name,
    :cookbooks_path => Elzar::COOKBOOK_DIRS, :local => options[:local]
  if options[:local]
    generate_local_files dest
  else
    require 'multi_json'
    generate_user_files dest, options
  end
end

.generate_local_files(dest) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 51

def self.generate_local_files(dest)
  generate_solo_rb dest
  cp_r Elzar::ROLES_DIR, dest
  cp_r "#{Elzar::CHEF_DIR}/cookbooks", dest
  cp_r "#{Elzar::CHEF_DIR}/site-cookbooks", dest
end

.generate_solo_rb(dest, additional = []) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 67

def self.generate_solo_rb(dest, additional=[])
  dirs = Elzar::COOKBOOK_DIRS.map {|dir| "#{CHEF_SOLO_DIR}/#{dir}" }
  Template.generate "solo.rb", dest, :cookbook_path => dirs + additional,
    :chef_solo_dir => CHEF_SOLO_DIR
end

.generate_user_files(dest, options = {}) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 58

def self.generate_user_files(dest, options={})
  if options[:authorized_keys]
    create_authorized_key_data_bag(options[:authorized_keys], dest)
  end
  if options[:app_name] && options[:database] && options[:ruby_version]
    create_dna_json(dest, *options.values_at(:app_name, :database, :ruby_version))
  end
end

.merge_and_create_temp_directory(user_dir) ⇒ Object 



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# File 'lib/elzar/assistant.rb', line 35

def self.merge_and_create_temp_directory(user_dir)
  dest = Dir.mktmpdir
  elzar_dir = "#{dest}/#{ELZAR_DIR}"
  FileUtils.mkdir_p elzar_dir

  generate_solo_rb dest, Elzar::COOKBOOK_DIRS.map {|dir| "#{CHEF_SOLO_DIR}/#{ELZAR_DIR}/#{dir}" }
  cp_r Elzar::ROLES_DIR, dest
  cp_r "#{Elzar::CHEF_DIR}/cookbooks", elzar_dir
  cp_r "#{Elzar::CHEF_DIR}/site-cookbooks", elzar_dir
  # merges user provision with elzar's provision
  cp_r "#{user_dir}/.", dest
  dest
end