Class: Chef::Knife::VsphereVmSnapshot

Inherits:
BaseVsphereCommand show all
Defined in:
lib/chef/knife/vsphere_vm_snapshot.rb

Overview

Manage snapshots of a virtual machine

Instance Method Summary collapse

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, #get_config, #get_password_from_stdin, #get_path_to_object, #get_vm, #get_vms, #linux?, #password, #tcp_test_port, #tcp_test_port_vm, #traverse_folders_for_computeresources, #traverse_folders_for_dc, #traverse_folders_for_vm, #traverse_folders_for_vms, #vim_connection, #windows?

Methods inherited from Chef::Knife

#log_verbose?

Instance Method Details

#display_node(node, current, shift = 1) ⇒ Object 



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# File 'lib/chef/knife/vsphere_vm_snapshot.rb', line 142

def display_node(node, current, shift = 1)
  out = ''
  out << '+--' * shift
  if node.snapshot == current
    out << "#{ui.color(node.name, :cyan)}" << "\n"
  else
    out << "#{node.name}" << "\n"
  end
  unless node.childSnapshotList.empty?
    node.childSnapshotList.each { |item| out << display_node(item, current, shift + 1) }
  end
  out
end

#find_node(tree, name) ⇒ Object 



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# File 'lib/chef/knife/vsphere_vm_snapshot.rb', line 129

def find_node(tree, name)
  snapshot = nil
  tree.each do |node|
    if node.name == name
      snapshot = node.snapshot
      break
    elsif !node.childSnapshotList.empty?
      snapshot = find_node(node.childSnapshotList, name)
    end
  end
  snapshot
end

#run ⇒ Object 



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# File 'lib/chef/knife/vsphere_vm_snapshot.rb', line 61

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

  vim_connection

  vm = if get_config(:find)
         puts "No folder entered, searching for #{vmname}"
         src_folder = find_folder(get_config(:folder))
         traverse_folders_for_vm(src_folder, vmname)
       else
         base_folder = find_folder get_config(:folder)
         find_in_folder(base_folder, RbVmomi::VIM::VirtualMachine, vmname) || abort("VM #{vmname} not found")
       end

  if vm.snapshot
    snapshot_list = vm.snapshot.rootSnapshotList
    current_snapshot = vm.snapshot.currentSnapshot
  end

  if get_config(:list) && vm.snapshot
    puts 'Current snapshot tree: '
    puts "#{vmname}"
    snapshot_list.each { |i| puts display_node(i, current_snapshot) }
  end

  if get_config(:create_new_snapshot)
    snapshot_task = vm.CreateSnapshot_Task(name: get_config(:create_new_snapshot),
                                           description: '',
                                           memory: get_config(:dump_memory),
                                           quiesce: get_config(:quiesce))
    snapshot_task = snapshot_task.wait_for_completion if get_config(:wait)
    snapshot_task
  end

  if get_config(:remove_named_snapshot)
    ss_name = get_config(:remove_named_snapshot)
    snapshot = find_node(snapshot_list, ss_name)
    puts "Found snapshot #{ss_name} removing."
    snapshot_task = snapshot.RemoveSnapshot_Task(removeChildren: false)
    snapshot_task = snapshot_task.wait_for_completion if get_config(:wait)
    snapshot_task
  end

  if get_config(:revert_current_snapshot)
    puts 'Reverting to Current Snapshot'
    vm.RevertToCurrentSnapshot_Task(suppressPowerOn: false).wait_for_completion
    if get_config(:power)
      vm.PowerOnVM_Task.wait_for_completion
      puts "Powered on virtual machine #{vmname}"
    end
  end

  return unless get_config(:revert_snapshot)
  ss_name = get_config(:revert_snapshot)
  snapshot = find_node(snapshot_list, ss_name)
  snapshot.RevertToSnapshot_Task(suppressPowerOn: false).wait_for_completion
  return unless get_config(:power)
  vm.PowerOnVM_Task.wait_for_completion
  puts "Powered on virtual machine #{vmname}"
end