Class: Chef::Knife::XenserverTemplateCreate

Inherits:
Chef::Knife
  • Object
show all
Includes:
XenserverBase
Defined in:
lib/chef/knife/xenserver_template_create.rb

Instance Method Summary collapse

Methods included from XenserverBase

#bytes_to_megabytes, #connection, included, #locate_config_value

Instance Method Details

#create_nics(networks, macs, vm) ⇒ Object 



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# File 'lib/chef/knife/xenserver_template_create.rb', line 179

def create_nics(networks, macs, vm)
  net_arr = networks.split(/,/).map { |x| { :network => x } }
  nics = []
  if macs
    mac_arr = macs.split(/,/)
    nics = net_arr.each_index { |x| net_arr[x][:mac_address] = mac_arr[x] if mac_arr[x] and !mac_arr[x].empty? }
  else
    nics = net_arr
  end
  networks = connection.networks
  highest_device = 0
  vm.vifs.each { |vif| highest_device = vif.device.to_i if vif.device.to_i > highest_device }
  nic_count = 0
  nics.each do |n|
    net = networks.find { |net| net.name == n[:network] }
    if net.nil?
      ui.error "Network #{n[:network]} not found"
      exit 1
    end
    nic_count += 1
    c = {
     'MAC_autogenerated' => n[:mac_address].nil? ? 'True':'False',
     'VM' => vm.reference,
     'network' => net.reference,
     'MAC' => n[:mac_address] || '',
     'device' => (highest_device + nic_count).to_s,
     'MTU' => '0',
     'other_config' => {},
     'qos_algorithm_type' => 'ratelimit',
     'qos_algorithm_params' => {}
    }
    connection.create_vif_custom c
  end
end

#run ⇒ Object 



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# File 'lib/chef/knife/xenserver_template_create.rb', line 74

def run
  source = config[:vm_disk]
  vm_name = config[:vm_name]
  host = config[:xenserver_host] || Chef::Config[:knife][:xenserver_host]
  user = config[:xenserver_username] || Chef::Config[:knife][:xenserver_username]
  password = config[:xenserver_password] || Chef::Config[:knife][:xenserver_password]
  if host.nil?
    ui.error "Invalid Xen host. Use #{'--xenserver-host'.red.bold} argument."
    exit 1
  end
  if user.nil?
    ui.error "Invalid Xen username. Use #{'--xenserver-username'.red.bold} argument."
    exit 1
  end
  if password.nil?
    ui.error "Invalid Xen password. Use #{'--xenserver-password'.red.bold} argument."
    exit 1
  end
  
  if vm_name.nil?
    ui.error "Invalid name for the template. Use #{'--vm-name'.red.bold} argument."
    exit 1
  end

  if source.nil? or not File.exist?(source)
    ui.error "Invalid source disk #{(source || '').bold}."
    ui.error "#{'--vm-disk'.red.bold} argument is mandatory" \
      if source.nil?
    exit 1
  end
  if source !~ /\.vhd$/
    ui.error "Invalid source disk #{source.red.bold}. I need a VHD file."
    exit 1
  end
  
  # Create the VM but do not start/provision it
  if config[:hvm]
    ui.info "HVM".yellow + " template selected"
    pv_bootloader = 'eliloader'
    hvm_boot_policy = 'BIOS order'
    pv_args = ''
  else
    ui.info "PV".yellow + " template selected"
    pv_bootloader = 'pygrub'
    hvm_boot_policy = ''
    pv_args = '-- console=hvc0'
  end

  ui.info "Creating VM #{vm_name.yellow} on #{host.yellow}..."
  
  # We will create the VDI in this SR
  sr = connection.storage_repositories.find { |sr| sr.name == config[:storage_repository] }
  # Upload and replace the VDI with our template
  uuid = UUIDTools::UUID.random_create.to_s
  dest = "/var/run/sr-mount/#{sr.uuid}/#{uuid}.vhd"
  Net::SSH.start(host, user, :password => password) do |ssh|
    puts "Uploading file #{File.basename(source).yellow}..." 
    puts "Destination SR #{sr.name.yellow}"
    ssh.scp.upload!(source, dest) do |ch, name, sent, total|
      p = (sent.to_f * 100 / total.to_f).to_i.to_s
      print "\rProgress: #{p.yellow.bold}% completed"
    end
  end
  
  sr.scan
  # Create a ~8GB VDI in storage repository 'Local Storage'
  #vdi = connection.vdis.create :name => "#{vm_name}-disk1", 
  #                       :storage_repository => sr,
  #                       :description => "#{vm_name}-disk1",
  #                       :virtual_size => '8589934592' # ~8GB in bytes

  vdi = nil
  sr.vdis.each do |v| 
    if v.uuid == uuid
      v.set_attribute 'name_label', "#{vm_name}-template"
      vdi = v
      break
    end
  end
  
  mem = (config[:vm_memory].to_i * 1024 * 1024).to_s
  vm = connection.servers.new :name => "#{vm_name}",
                        :affinity => connection.hosts.first,
                        :other_config => {},
                        :pv_bootloader => pv_bootloader,
                        :hvm_boot_policy => hvm_boot_policy,
                        :pv_args => pv_args,
                        :memory_static_max => mem,
                        :memory_static_min => mem,
                        :memory_dynamic_max => mem,
                        :memory_dynamic_min => mem
  vm.save
  if config[:vm_tags]
    vm.set_attribute 'tags', config[:vm_tags].split(',')
  end

  if config[:vm_networks]
    create_nics(config[:vm_networks], config[:mac_addresses], vm)
  end
  # Add the required VBD to the VM 
  connection.vbds.create :server => vm, :vdi => vdi
  puts "\nDone."
  
end