no implicit conversion of String into Integer が解決できない

Question

以下のようなchef Kitchen用のyamlと
recipe、libraryを書いて実行しているのですが、
タイトルのエラーが出て解決できません。。。
※library側、yml側双方をいろいろ書き方を変えてみましたがうまくいかず。。。

どういった書き方が正しいのか
わかる方がいましたらご指摘お願いします。。。

◎recipe

# Handling test Lvm

# Install Parted package
package 'parted' do
  action :install
end

::Chef::Recipe.send(:include, HandleDevice::Helper)
::Chef::Recipe.send(:include, HandleLVM::Helper)


node['disks']['devices'].each do |device|
  create_device(device)
end

node['disks']['vg'].each do |vg|
  handling_physical_volume(vg)
end

◎Library

module HandleLVM
  module Helper
    def handling_physical_volume(vg)
      p vg

      vg.each do |vg|
        print "hello: "
        p vg['name']
        if ! system("vgdisplay #{vg['name']}")
          system("vgcreate -v #{vg['name']} #{vg['members'][0]}")
        end
      end
    end

◎kitchen.yml

suites:
  - name: default
    run_list:
      - test_lvm
    attributes:
      environment: 'development'
      location: 'local'
      disks:
        devices:
        - name: '/dev/sda'
          path: '/dev/sda3'
          label: 'msdos'
          disk_type: 'primary'
          alignment: 'minimal'
        - name: '/dev/sdb'
          path: '/dev/sdb1'
          label: 'msdos'
          disk_type: 'primary'
          alignment: 'minimal'
        vg:
        - name: 'vg1'
          members:
          - '/dev/sda3'
        - name: 'vg2'
          members:
          - '/dev/sdb1'
        lv:
        - name: 'root'
          group: 'vg1'
          fs_type: 'ext4'
          mount_path: '/'
        - name: 'data'
          group: 'vg2'
          fs_type: 'ext4'
          mount_path: 'data'

エラー内容

       TypeError
       ---------
       no implicit conversion of String into Integer

       Cookbook Trace:
       ---------------
         /tmp/kitchen/cache/cookbooks/test_lvm/libraries/HandleLVM.rb:9:in `[]'
         /tmp/kitchen/cache/cookbooks/test_lvm/libraries/HandleLVM.rb:9:in `block in handling_physical_volume'
         /tmp/kitchen/cache/cookbooks/test_lvm/libraries/HandleLVM.rb:7:in `each'
         /tmp/kitchen/cache/cookbooks/test_lvm/libraries/HandleLVM.rb:7:in `handling_physical_volume'
         /tmp/kitchen/cache/cookbooks/test_lvm/recipes/default.rb:19:in `block in from_file'
         /tmp/kitchen/cache/cookbooks/test_lvm/recipes/default.rb:17:in `each'
         /tmp/kitchen/cache/cookbooks/test_lvm/recipes/default.rb:17:in `from_file'

       Relevant File Content:
       ----------------------
       /tmp/kitchen/cache/cookbooks/test_lvm/libraries/HandleLVM.rb:

         2:  module HandleLVM
         3:    module Helper
         4:      def handling_physical_volume(vg)
         5:        p vg
         6:
         7:        vg.each do |vg|
         8:          print "hello: "
         9>>         p vg['name']
        10:          if ! system("vgdisplay #{vg['name']}")
        11:            system("vgcreate -v #{vg['name']} #{vg['members'][0]}")
        12:          end
        13:        end
        14:      end
        15:

Answer 1

以下のように修正して自己解決しました。

  vg.each do |name, members|
    print "hello: "
    p vg['name']
    if ! system("vgdisplay #{vg['name']}")
      system("vgcreate -v #{vg['name']} #{vg['members'][0]}")
    end
  end