Class: VagrantPlugins::ProviderLibvirt::Action::PackageDomain

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-libvirt/action/package_domain.rb

Overview

Action for create new box for libvirt provider

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ PackageDomain

Returns a new instance of PackageDomain.



8
9
10
11
12
13
 
# File 'lib/vagrant-libvirt/action/package_domain.rb', line 8

def initialize(app, env)
  @logger = Log4r::Logger.new('vagrant_libvirt::action::package_domain')
  @app = app
  env['package.files'] ||= {}
  env['package.output'] ||= 'package.box'
end

Instance Method Details

#assemble_box(boxname, extra) ⇒ Object 



73
74
75
 
# File 'lib/vagrant-libvirt/action/package_domain.rb', line 73

def assemble_box(boxname, extra)
  `tar cvzf "#{boxname}" --totals ./metadata.json ./Vagrantfile ./box.img #{extra}`
end

#call(env) ⇒ Object 



15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
 
# File 'lib/vagrant-libvirt/action/package_domain.rb', line 15

def call(env)
  env[:ui].info(I18n.t('vagrant_libvirt.package_domain'))
  libvirt_domain = env[:machine].provider.driver.connection.client.lookup_domain_by_uuid(
    env[:machine].id
  )
  domain = env[:machine].provider.driver.connection.servers.get(env[:machine].id.to_s)
  root_disk = domain.volumes.select do |x|
    x.name == libvirt_domain.name + '.img'
  end.first
  boxname = env['package.output']
  raise "#{boxname}: Already exists" if File.exist?(boxname)
  @tmp_dir = Dir.pwd + '/_tmp_package'
  @tmp_img = @tmp_dir + '/box.img'
  Dir.mkdir(@tmp_dir)
  if File.readable?(root_disk.path)
    backing = `qemu-img info "#{root_disk.path}" | grep 'backing file:' | cut -d ':' -f2`.chomp
  else
    env[:ui].error("Require set read access to #{root_disk.path}. sudo chmod a+r #{root_disk.path}")
    FileUtils.rm_rf(@tmp_dir)
    raise 'Have no access'
  end
  env[:ui].info('Image has backing image, copying image and rebasing ...')
  FileUtils.cp(root_disk.path, @tmp_img)
  `qemu-img rebase -p -b "" #{@tmp_img}`
  # remove hw association with interface
  # working for centos with lvs default disks
  `virt-sysprep --no-logfile --operations defaults,-ssh-userdir -a #{@tmp_img}`
  # add any user provided file
  extra = ''
  @tmp_include = @tmp_dir + '/_include'
  if env['package.include']
    extra = './_include'
    Dir.mkdir(@tmp_include)
    env['package.include'].each do |f|
      env[:ui].info("Including user file: #{f}")
      FileUtils.cp(f, @tmp_include)
    end
  end
  if env['package.vagrantfile']
    extra = './_include'
    Dir.mkdir(@tmp_include) unless File.directory?(@tmp_include)
    env[:ui].info('Including user Vagrantfile')
    FileUtils.cp(env['package.vagrantfile'], @tmp_include + '/Vagrantfile')
  end
  Dir.chdir(@tmp_dir)
  info = JSON.parse(`qemu-img info --output=json #{@tmp_img}`)
  img_size = (Float(info['virtual-size'])/(1024**3)).ceil
  File.write(@tmp_dir + '/metadata.json', metadata_content(img_size))
  File.write(@tmp_dir + '/Vagrantfile', vagrantfile_content)
  assemble_box(boxname, extra)
  FileUtils.mv(@tmp_dir + '/' + boxname, '../' + boxname)
  FileUtils.rm_rf(@tmp_dir)
  env[:ui].info('Box created')
  env[:ui].info('You can now add the box:')
  env[:ui].info("vagrant box add #{boxname} --name any_comfortable_name")
  @app.call(env)
end

#metadata_content(filesize) ⇒ Object 



93
94
95
96
97
98
99
100
101
 
# File 'lib/vagrant-libvirt/action/package_domain.rb', line 93

def metadata_content(filesize)
  <<-EOF
    {
      "provider": "libvirt",
      "format": "qcow2",
      "virtual_size": #{filesize}
    }
  EOF
end

#vagrantfile_content ⇒ Object 



77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
 
# File 'lib/vagrant-libvirt/action/package_domain.rb', line 77

def vagrantfile_content
  <<-EOF
    Vagrant.configure("2") do |config|
      config.vm.provider :libvirt do |libvirt|
        libvirt.driver = "kvm"
        libvirt.host = ""
        libvirt.connect_via_ssh = false
        libvirt.storage_pool_name = "default"
      end
    end

    user_vagrantfile = File.expand_path('../_include/Vagrantfile', __FILE__)
    load user_vagrantfile if File.exists?(user_vagrantfile)
  EOF
end