Class: Chef::Knife::VsphereVmVmdkAdd

Inherits:
BaseVsphereCommand show all
Includes:
SearchHelper
Defined in:
lib/chef/knife/vsphere_vm_vmdk_add.rb

Overview

Add a new disk to a virtual machine VsphereVmvmdkadd extends the BaseVspherecommand

Instance Method Summary collapse

Methods included from SearchHelper

#get_all_objects, #get_all_vm_objects, #get_vm_by_name, #get_vm_host_by_name

Methods inherited from BaseVsphereCommand

#choose_datastore, common_options, #conn_opts, #datacenter, #fatal_exit, #find_all_in_folder, #find_datastore, #find_datastorecluster, #find_datastores_regex, #find_device, #find_folder, #find_in_folder, #find_network, #find_pool, #find_pool_folder, #find_pools_and_clusters, #get_config, #get_password_from_stdin, #get_path_to_object, #linux?, #number_to_human_size, #password, #tcp_test_port, #tcp_test_port_vm, #traverse_folders_for_computeresources, #traverse_folders_for_dc, #traverse_folders_for_pools, #vim_connection, #windows?

Methods inherited from Chef::Knife

#log_verbose?

Instance Method Details

#run ⇒ Object

The main run method for vm_vmdk_add



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# File 'lib/chef/knife/vsphere_vm_vmdk_add.rb', line 29

def run
  $stdout.sync = true

  vmname = @name_args[0]
  if vmname.nil?
    show_usage
    ui.fatal("You must specify a virtual machine name")
    exit 1
  end

  size = @name_args[1]
  if size.nil?
    ui.fatal "You need a VMDK size!"
    show_usage
    exit 1
  end

  vim = vim_connection
  vdm = vim.serviceContent.virtualDiskManager
  vm = get_vm_by_name(vmname, get_config(:folder)) || fatal_exit("Could not find #{vmname}")

  fatal_exit "Could not find #{vmname}" unless vm

  target_lun = get_config(:target_lun) unless get_config(:target_lun).nil?
  vmdk_size_kb = size.to_i * 1024 * 1024

  if target_lun.nil?
    vmdk_datastore = choose_datastore(vm.datastore, size)
    exit(-1) if vmdk_datastore.nil?
  else
    vmdk_datastores = find_datastores_regex(target_lun)
    vmdk_datastore = choose_datastore(vmdk_datastores, size)
    exit(-1) if vmdk_datastore.nil?
    vmdk_dir = "[#{vmdk_datastore.name}] #{vmname}"
    # create the vm folder on the LUN or subsequent operations will fail.
    unless vmdk_datastore.exists? vmname
      dc = datacenter
      begin
        dc._connection.serviceContent.fileManager.MakeDirectory name: vmdk_dir, datacenter: dc, createParentDirectories: false
      rescue RbVmomi::Fault => e
        ui.warn "Ignoring a fault when trying to create #{vmdk_dir}. This may be related to issue #213."
        if log_verbose?
          puts "Chose #{vmdk_datastore.name} out of #{vmdk_datastores.map(&:name).join(', ')}"
          puts e
        end
      end
    end
  end

  puts "Choosing: #{vmdk_datastore.name}"

  # now we need to inspect the files in this datastore to get our next file name
  next_vmdk = 1
  pc = vmdk_datastore._connection.serviceContent.propertyCollector
  vms = vmdk_datastore.vm
  vm_files = pc.collectMultiple vms, "layoutEx.file"
  vm_files.keys.each do |vmFile|
    vm_files[vmFile]["layoutEx.file"].each do |layout|
      if layout.name =~ /^\[#{vmdk_datastore.name}\] #{vmname}\/#{vmname}_([0-9]+).vmdk/
        num = Regexp.last_match(1)
        next_vmdk = num.to_i + 1 if next_vmdk <= num.to_i
      end
    end
  end
  vmdk_file_name = "#{vmname}/#{vmname}_#{next_vmdk}.vmdk"
  vmdk_name = "[#{vmdk_datastore.name}] #{vmdk_file_name}"
  vmdk_type = get_config(:vmdk_type)
  vmdk_type = "preallocated" if vmdk_type == "thick"
  puts "Next vmdk name is => #{vmdk_name}"

  # create the disk
  unless vmdk_datastore.exists? vmdk_file_name
    vmdk_spec = RbVmomi::VIM::FileBackedVirtualDiskSpec(
      adapterType: "lsiLogic",
      capacityKb: vmdk_size_kb,
      diskType: vmdk_type
    )
    ui.info "Creating VMDK"
    ui.info "#{ui.color 'Capacity:', :cyan} #{size} GB"
    ui.info "#{ui.color 'Disk:', :cyan} #{vmdk_name}"

    if get_config(:noop)
      ui.info "#{ui.color 'Skipping disk creation process because --noop specified.', :red}"
    else
      vdm.CreateVirtualDisk_Task(
        datacenter: datacenter,
        name: vmdk_name,
        spec: vmdk_spec
      ).wait_for_completion
    end
  end
  ui.info "Attaching VMDK to #{vmname}"

  # now we run through the SCSI controllers to see if there's an available one
  available_controllers = []
  use_controller = nil
  scsi_tree = {}
  vm.config.hardware.device.each do |device|
    if device.is_a? RbVmomi::VIM::VirtualSCSIController
      if scsi_tree[device.controllerKey].nil?
        scsi_tree[device.key] = {}
        scsi_tree[device.key]["children"] = []
      end
      scsi_tree[device.key]["device"] = device
    end
    next unless device.class == RbVmomi::VIM::VirtualDisk
    if scsi_tree[device.controllerKey].nil?
      scsi_tree[device.controllerKey] = {}
      scsi_tree[device.controllerKey]["children"] = []
    end
    scsi_tree[device.controllerKey]["children"].push(device)
  end
  scsi_tree.keys.sort.each do |controller|
    if scsi_tree[controller]["children"].length < 15
      available_controllers.push(scsi_tree[controller]["device"].deviceInfo.label)
    end
  end

  if available_controllers.length > 0
    use_controller = available_controllers[0]
    puts "using #{use_controller}"
  else

    if scsi_tree.keys.length < 4

      # Add a controller if none are available
      puts "no controllers available. Will attempt to create"
      new_scsi_key = scsi_tree.keys.sort[scsi_tree.length - 1] + 1
      new_scsi_bus_number = scsi_tree[scsi_tree.keys.sort[scsi_tree.length - 1]]["device"].busNumber + 1

      controller_device = RbVmomi::VIM::VirtualLsiLogicController(
        key: new_scsi_key,
        busNumber: new_scsi_bus_number,
        sharedBus: :noSharing
      )

      device_config_spec = RbVmomi::VIM::VirtualDeviceConfigSpec(
        device: controller_device,
        operation: RbVmomi::VIM::VirtualDeviceConfigSpecOperation("add")
      )

      vm_config_spec = RbVmomi::VIM::VirtualMachineConfigSpec(
        deviceChange: [device_config_spec]
      )

      if get_config(:noop)
        ui.info "#{ui.color 'Skipping controller creation process because --noop specified.', :red}"
      else
        vm.ReconfigVM_Task(spec: vm_config_spec).wait_for_completion
      end
    else
      ui.info "Controllers maxed out at 4."
      exit(-1)
    end
  end

  # now go back and get the new device's name
  vm.config.hardware.device.each do |device|
    if device.class == RbVmomi::VIM::VirtualLsiLogicController
      use_controller = device.deviceInfo.label if device.key == new_scsi_key
    end
  end

  # add the disk
  controller = find_device(vm, use_controller)

  used_unit_numbers = []
  scsi_tree.keys.sort.each do |c|
    next unless controller.key == scsi_tree[c]["device"].key
    used_unit_numbers.push(scsi_tree[c]["device"].scsiCtlrUnitNumber)
    scsi_tree[c]["children"].each do |disk|
      used_unit_numbers.push(disk.unitNumber)
    end
  end

  available_unit_numbers = []
  (0..15).each do |scsi_id|
    if used_unit_numbers.grep(scsi_id).length > 0
    else
      available_unit_numbers.push(scsi_id)
    end
  end

  # ensure we don't try to add the controllers SCSI ID
  new_unit_number = available_unit_numbers.sort[0]
  puts "using SCSI ID #{new_unit_number}"

  vmdk_backing = RbVmomi::VIM::VirtualDiskFlatVer2BackingInfo(
    datastore: vmdk_datastore,
    diskMode: "persistent",
    fileName: vmdk_name
  )

  device = RbVmomi::VIM::VirtualDisk(
    backing: vmdk_backing,
    capacityInKB: vmdk_size_kb,
    controllerKey: controller.key,
    key: -1,
    unitNumber: new_unit_number
  )

  device_config_spec = RbVmomi::VIM::VirtualDeviceConfigSpec(
    device: device,
    operation: RbVmomi::VIM::VirtualDeviceConfigSpecOperation("add")
  )

  vm_config_spec = RbVmomi::VIM::VirtualMachineConfigSpec(
    deviceChange: [device_config_spec]
  )

  if get_config(:noop)
    ui.info "#{ui.color 'Skipping disk attaching process because --noop specified.', :red}"
  else
    vm.ReconfigVM_Task(spec: vm_config_spec).wait_for_completion
  end
end