VMware OVF Toolを利用してESXi 6.7からVMをエクスポート

はじめに

VMware OVF Toolというコマンドラインツールを利用して、ESXi 6.7からVMをエクスポートする手順を記しておく。

作業マシンの準備

VMのエクスポートの作業を実施するマシンを準備する。 ここでは、Ubuntu 18.04を利用する。

$ uname -srvm
Linux 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018 x86_64

VMware OVF Toolのインストール

VMのエクスポート用のツール「VMware OVF Tool」を作業マシンにインストールする。 まずは、以下のWebサイトからダウンロードする。

執筆時点の最新版はRelease 4.3.0だった。 「VMware OVF Tool for Linux 64-bit」を選択すると、「VMware-ovftool-4.3.0-7948156-lin.x86_64.bundle」というファイル名でインストーラがダウンロードされる。 このファイルに実行権限を与えておく。

$ chmod a+x VMware-ovftool-4.3.0-7948156-lin.x86_64.bundle

このインストーラは、GUICUIに対応している。 このインストーラを引数なしで実行するとGUIが起動するが、ここでは詳細は割愛する。 CUIでインストールする場合は、オプション--consoleを付与して以下のようにコマンドを実行する。

$ sudo ./VMware-ovftool-4.3.0-7948156-lin.x86_64.bundle --console
Extracting VMware Installer...done.
You must accept the VMware OVF Tool component for Linux End User
License Agreement to continue.  Press Enter to proceed. ←●Enterを入力
VMWARE END USER LICENSE AGREEMENT

PLEASE NOTE THAT THE TERMS OF THIS END USER LICENSE AGREEMENT SHALL GOVERN YOUR
USE OF THE SOFTWARE, REGARDLESS OF ANY TERMS THAT MAY APPEAR DURING THE
INSTALLATION OF THE SOFTWARE.
(略)

Do you agree? [yes/no]: yes ←●「yes」を入力

The product is ready to be installed.  Press Enter to begin
installation or Ctrl-C to cancel.

Installing VMware OVF Tool component for Linux 4.3.0
    Configuring...
[######################################################################] 100%
Installation was successful.

一応、以下のように実行することで、CUIでサイレントインストールすることができる。

$ sudo ./VMware-ovftool-4.3.0-7948156-lin.x86_64.bundle --console --eulas-agreed --required
Extracting VMware Installer...done.
Installing VMware OVF Tool component for Linux 4.3.0
    Configuring...
[######################################################################] 100%
Installation was successful.

「一応」と書いたのは、オプション--requiredが「必須の入力項目のみプロンプトを表示する」というものであり、このインストーラはたまたま必須の入力項目がなかっただけのように思えるから。

VMのエクスポート

まずはコマンドovftoolのヘルプを表示してみる。

$ ovftool --help
Usage: ovftool [options] <source> [<target>]
where
<source>: Source URL locator to an OVF package, VMX file, or virtual machine in
          vCenter or on ESX Server. 
<target>: Target URL locator which specifies either a file location, or a 
          location in the vCenter inventory or on an ESX Server. 
(以下略)

VMをエクスポートする場合、<source>はESXi上のVMを示すURIに、<target>は出力先のローカルの.ovaファイルを指定することになる。 <source>について、ESXiに直接接続する場合のURIのフォーマットは以下の通り。

vi://[ユーザ名]:[パスワード]@[ESXiホスト]/[VMの名前]

これは妥当なURIでなければならないので、必要に応じてパーセントエンコードする必要がある。 特にパスワードには記号が含まれる場合が多いので、注意が必要になる。 エンコードの方法は色々あるが、Pythonでパスワード「Hello,World!」をエンコードする例は以下のようになる。

$ python3 -c 'import urllib.parse; import os; print(urllib.parse.quote_plus("Hello,World!"))'
Hello%2CWorld%21

これを受けて、例えば以下の環境では、

項目
ユーザ名 root
パスワード Hello,World!
ESXiホスト 192.168.8.20
VMの名前 test-vm

<source>URIは以下になる。

vi://root:Hello%2CWorld%21@192.168.8.20/test-vm

これでコマンドを組み立てる準備が整った。 以下のようにコマンドovftoolを実行する。

$ ovftool vi://root:Hello%2CWorld%21@192.168.8.20/test-vm exported-vm.ova
Accept SSL fingerprint (23:E5:B3:5E:26:16:88:44:8B:DC:F1:DC:97:C7:D8:35:8B:3D:FE:08) for host 192.168.8.20 as source type.
Fingerprint will be added to the known host file
Write 'yes' or 'no'
yes ←●「yes」を入力
Opening VI source: vi://root@192.168.8.20:443/test-vm
Opening OVF target: exported-vm.ovf
Writing OVF package: exported-vm.ovf
Transfer Completed                    
Completed successfully

SSLのフィンガープリントの保存のプロンプトを抑止したければ、以下のようにオプション--noSSLVerifyを付与してovftoolを実行すればよい。

$ ovftool --noSSLVerify vi://root:Hello%2CWorld%21@192.168.8.20/test-vm exported-vm.ova

コマンドが成功すると、ファイルexported-vm.ovaが生成されている。

動作確認 (ovftoolを利用)

以下のようにコマンドovftoolを実行して、exported-vm.ovaがインポートできることを確認する。

$ ovftool --noSSLVerify exported-vm.ova vi://root:Hello%2CWorld%21@192.168.8.20
Opening OVA source: exported-vm.ova
The manifest validates
Opening VI target: vi://root@192.168.8.20:443/
Deploying to VI: vi://root@192.168.8.20:443/
Transfer Completed                    
Completed successfully

コマンドが成功すると、exported-vmという名前のVMが作成されている。

動作確認 (Embedded Web Clientを利用)

生成されたexported-vm.ovaをEmbedded Web Clientを利用してインポートしようとすると、以下のような「必要なディスクイメージが見つかりませんでした」という謎のエラーメッセージが表示される。

f:id:redj:20190208021258p:plain

一応インポートは成功するのだが、なんとも気持ちが悪い。 試行錯誤してみたところ、exported-vm.ovaの中に含まれるexported-vm.ovfの中の、nvramファイル関連の要素が影響していることが分かった。

<?xml version="1.0" encoding="UTF-8"?>
<Envelope ... >
  <References>
    <File ovf:href="exported-vm-disk1.vmdk" ovf:id="file1" ovf:size="655692288"/>
    <File ovf:href="exported-vm-file1.nvram" ovf:id="file2" ovf:size="8684"/> ←●これ
(略)
      <vmw:ExtraConfig ovf:required="false" vmw:key="nvram" vmw:value="ovf:/file/file2"/> ←●これ
    </VirtualHardwareSection>
  </VirtualSystem>
</Envelope>

ネットで公開されているova形式のVMをいくつか見てみたが、どうもnvramは必須ではないように思える。 なので、これらの要素を削除して、exported-vm.ovaを再作成してみる

$ ovftool exported-vm.ova exported-vm.ovf
Opening OVA source: exported-vm.ova
The manifest validates
Opening OVF target: exported-vm.ovf
Writing OVF package: exported-vm.ovf
Transfer Completed                    
Completed successfully

$ sed -i -e '/nvram/d' exported-vm.ovf

$ rm exported-vm-file1.nvram

$ rm exported-vm.mf

$ ovftool exported-vm.ovf exported-vm-modified.ova
Opening OVF source: exported-vm.ovf
Opening OVA target: exported-vm-modified.ova
Writing OVA package: exported-vm-modified.ova
Transfer Completed                    
Warning:
 - No manifest file found.
 - No manifest entry found for: 'exported-vm-disk1.vmdk'.
Completed successfully

このexported-vm-modified.ovaはエラーなくEmbedded Web Clientでインポートできた。 ただ、ovftoolではnvramを削除しなくても正常にインポートできているし、ESXi 6.5のときのEmbedded Web Clientはバグが多すぎて使い物にならなかったという経験もあるので、この現象はEmbedded Web Clientのバグのように思える。

参考

OVF Toolのインストーラのヘルプ

$ ./VMware-ovftool-4.3.0-7948156-lin.x86_64.bundle --console --help
Extracting VMware Installer...done.
Usage: vmware-installer [options]

VMware Installer

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit

  Manage:
    Install or uninstall products

    -i FILE, --install-bundle=FILE
                        Install bundle from FILE
    --install-component=FILE
                        Install a component
    --uninstall-component=NAME
                        Force uninstallation of a component
    -u NAME, --uninstall-product=NAME
                        Uninstall a product
    -r, --resolve-system
                        Force the system to resolve the current state
    --register-file=COMPONENT_NAME (config|regular) FILE
                        Register a file in the database
    -x DIR, --extract=DIR
                        Extract the contents of the bundle into DIR
    -p DIR, --prefix=DIR
                        Set a custom install location

  Information:
    Look up information on installed products

    -l, --list-products
                        List installed products
    -t, --list-components
                        List the installed components
    -L COMPONENT, --list-files=COMPONENT
                        List files for a given component
    -S FILE, --find-file=FILE
                        List components and files matching the given pattern

  Settings:
    Set and retrieve settings

    -g COMPONENT KEY, --get-setting=COMPONENT KEY
                        Get setting
    -s COMPONENT KEY VALUE, --set-setting=COMPONENT KEY VALUE
                        Set setting
    -d COMPONENT KEY, --delete-setting=COMPONENT KEY
                        Delete setting

  Options:
    --gtk               Use the Gtk+ UI (Default)
    --console           Use the console UI
    --custom            Allow customization of the install, including file
                        locations.
    --regular           Displays questions that have no good defaults
                        (Default)
    --required          Displays only questions absolutely required
    -I, --ignore-errors
                        Ignore component script errors
    --eulas-agreed      Agree to the EULA

コマンドovftoolのヘルプ

$ ovftool --help
Usage: ovftool [options] <source> [<target>]
where
<source>: Source URL locator to an OVF package, VMX file, or virtual machine in
          vCenter or on ESX Server. 
<target>: Target URL locator which specifies either a file location, or a 
          location in the vCenter inventory or on an ESX Server. 

If <target> is not specified, information about the source is displayed to the 
console. 

Options:
     --acceptAllEulas            : Accept all end-user licenses agreements 
                                   without being prompted. 
     --allowAllExtraConfig       : Whether we allow all the ExtraConfig 
                                   options. These options are a security risk 
                                   as they control low-level and potential 
                                   unsafe options on the VM. 
     --allowExtraConfig          : Whether we allow ExtraConfig options. These 
                                   options are a security risk as they control 
                                   low-level and potential unsafe options on 
                                   the VM. 
     --annotation                : Add annotation to vi, vmx, vapprun, vCloud, 
                                   OVF, and OVA source locators 
     --authdPortSource           : Use this to override default vmware authd 
                                   port (902) when using a host as source. 
     --authdPortTarget           : Use this to override default vmware authd 
                                   port (902) when using a host as target. 
     --chunkSize                 : Specifies the chunk size to use for files in
                                   a generated OVF package. The default is not 
                                   to chunk. The chunk size without unit is 
                                   assumed to be in megabytes. Accepted units 
                                   are b, kb, mb, gb; e.g., 2gb or 100kb. 
     --compress                  : Compress the disks in an OVF package. Value 
                                   must be between 1 and 9. 1 is the fastest, 
                                   but gives the worst compression, whereas 9 
                                   is the slowest, but gives the best 
                                   compression. 
     --computerName              : Sets the computer name in the guest for a VM
                                   using the syntax --computerName:<VM 
                                   ID>=<value>. Only applies to vCloud targets 
                                   version 5.5 or newer. 
     --coresPerSocket            : Specifies the distribution of the total 
                                   number of CPUs over a number of virtual 
                                   sockets using the syntax 
                                   --coresPerSocket:<VM ID>=<value>. Only 
                                   applies to vCloud targets version 5.5 or 
                                   newer. 
 -ds/--datastore                 : Target datastore name for a VI locator.
     --decodeBase64              : Decode option values with Base64.
     --defaultStorageProfile     : The storage profile for all VMs in the OVF 
                                   package. The value should be an SPBM profile
                                   ID. Only applies to VI targets version 5.5 
                                   or newer. 
     --defaultStorageRawProfile  : The storage profile for all VMs in the OVF 
                                   package. The value should be raw SPBM 
                                   profile. The value will overwrite that in 
                                   --defaultStorageProfile. Only applies to VI 
                                   targets version 5.5 or newer. 
     --deploymentOption          : Selects what deployment option to use (if 
                                   the source OVF package supports multiple 
                                   options.) 
     --disableVerification       : Skip validation of signature and 
                                   certificate. 
 -dm/--diskMode                  : Select target disk format. Supported formats
                                   are: monolithicSparse, monolithicFlat, 
                                   twoGbMaxExtentSparse, twoGbMaxExtentFlat, 
                                   seSparse (VI target), eagerZeroedThick (VI 
                                   target), thin (VI target), thick (VI 
                                   target), sparse, and flat 
     --diskSize                  : Sets the size of a VM disk in megabytes 
                                   using the syntax --diskSize:<VM ID>,<disk 
                                   instance ID>=<value>. Only applies to vCloud
                                   targets version 5.5 or newer. 
     --eula                      : EULA to be inserted in the first virtual 
                                   system or virtual system collection in the 
                                   OVF. If the EULA is in a file, use the 
                                   option --eula@=filename instead. 
     --exportDeviceSubtypes      : Enables export of resource subtype for 
                                   CD/Floppy/Parallel/Serial devices. This can 
                                   limit portability as not all device backings
                                   are supported on all hypervisors. The 
                                   default is false. 
     --exportFlags               : Specifies one or more export flags to 
                                   control what gets exported. The supported 
                                   values for VI sources are mac, uuid, and 
                                   extraconfig. Supported value for vCloud 
                                   sources are preserveIdentity. One or more 
                                   options can be provided, separated by 
                                   commas. 
     --extraConfig               : Sets an ExtraConfig element for all 
                                   VirtualHardwareSections. The syntax is 
                                   --extraConfig:<key>=<value>. Applies to vi, 
                                   vmx, vapprun, vCloud, ovf, and ova source 
                                   locators. 
     --fencedMode                : If a parent network exists on the vCloud 
                                   target, this property specifies the 
                                   connectivity to the parent. Possible values 
                                   are bridged, isolated, and natRouted. 
 -h /--help                      : Prints this message.
     --hideEula                  : In OVF probe mode, hides the EULA.
     --importAsTemplate          : Import VM as a Template when deployed on a 
                                   VI target. 
     --ipAllocationPolicy        : IP allocation policy for a deployed OVF 
                                   package.Supported values are: dhcpPolicy, 
                                   transientPolicy, fixedPolicy, 
                                   fixedAllocatedPolicy. 
     --ipProtocol                : Select what IP protocol to use (IPv4, IPv6).
     --lax                       : Relax OVF specification conformance and 
                                   virtual hardware compliance checks. Use only
                                   if you know what you are doing. 
     --locale                    : Selects locale for target.
     --machineOutput             : Output OVF Tool messages in a machine 
                                   friendly manner. 
     --makeDeltaDisks            : Build delta disk hierarchy from the given 
                                   source locator. 
     --maxVirtualHardwareVersion : The maximal virtual hardware version to 
                                   generate. 
     --memorySize                : Sets the memory size in megabytes of a VM 
                                   using the syntax --memorySize:<VM 
                                   ID>=<value>. Only applies to vCloud targets 
                                   version 5.5 or newer. 
 -n /--name                      : Specifies target name (defaults to source 
                                   name). 
     --net                       : Set a network assignment in the deployed OVF
                                   package. A network assignment is set using 
                                   the syntax --net:<OVF name>=<target name>. 
                                   If the target is vCloud 5.5 or newer, a 
                                   fence mode can also be specified using the 
                                   syntax --net:<OVF name>=<target name>,<fence
                                   mode>. Possible fence mode values are: 
                                   bridged, isolated, and natRouted. 
 -nw/--network                   : Target network for a VI deployment.
     --nic                       : Specifies NIC configuration in a VM using 
                                   the syntax --nic:<VM ID>,<index>=<OVF net 
                                   name>,<isPrimary>,<ipAddressingMode>,<ipAddress>.
                                   Possible values for ipAddressingMode are: 
                                   DHCP, POOL, MANUAL, and NONE. ipAddress is 
                                   optional and should only be used when 
                                   ipAddressingMode is set to MANUAL. Only 
                                   applies to vCloud targets version 5.5 or 
                                   newer. 
     --noDisks                   : Disable disk conversion.
     --noImageFiles              : Do not include image files in destination.
     --noSSLVerify               : Skip SSL verification for VI connections.
     --numberOfCpus              : Sets the number of CPUs for a VM using the 
                                   syntax --numberOfCpus:<VM ID>=<value>. Only 
                                   applies to vCloud targets version 5.5 or 
                                   newer. 
 -o /--overwrite                 : Force overwrites of existing files.
     --powerOffSource            : Ensures a VM/vApp is powered off before 
                                   importing from a VI source. 
     --powerOffTarget            : Ensures a VM/vApp is powered off before 
                                   overwriting a VI target. 
     --powerOn                   : Powers on a VM/vApp deployed on a VI target.
     --privateKey                : Sign OVF package with the given private key 
                                   (.pem file). The file must contain a private
                                   key and a certificate. 
     --privateKeyPassword        : Password for the private key. Should be used
                                   in conjunction with privateKey if the 
                                   private key requires password 
                                   authentication. If required and not 
                                   specified, the tool will prompt for the 
                                   password. 
     --prop                      : Set a property in the deployed OVF package. 
                                   A property is set using the syntax 
                                   --prop:<key>=<value>. 
     --proxy                     : Proxy used for HTTP[S] access.
     --proxyNTLMAuth             : Enable NTLM authentication for proxy.
 -q /--quiet                     : No output to screen except errors.
     --schemaValidate            : Validate OVF descriptor against OVF schema.
     --shaAlgorithm              : Select SHA digest algorithm when creating 
                                   OVF package. Supported values are SHA1, 
                                   SHA256 and SHA512. Default value is SHA256. 
     --skipManifestCheck         : Skip validation of OVF package manifest.
     --skipManifestGeneration    : Skip generation of OVF package manifest.
     --sourcePEM                 : File path to PEM formatted file used to 
                                   verify VI connections. 
     --sourceSSLThumbprint       : SSL fingerprint of SOURCE. OVF Tool verifies
                                   the SSL fingerprint it gets from SOURCE if 
                                   the value is set. 
 -st/--sourceType                : Explicitly express that source is OVF, OVA, 
                                   VMX, VI, vCloud, ISO, FLP, vApprun 
     --sslCipherList             : Use this to override default OpenSSL ciphers
                                   suite. 
     --sslVersion                : Use this to set preferred TLS/SSL version 
                                   for HTTPS connections. The valid values are 
                                   as following: 
                                     TLSv1_0: Set preferred TLS/SSL version to 
                                   TLSv1.0. 
                                     TLSv1_1: Set preferred TLS/SSL version to 
                                   TLSv1.1. 
                                     TLSv1_2: Set preferred TLS/SSL version to 
                                   TLSv1.2. 
     --storageProfile            : Sets the storage profile for a VM using the 
                                   syntax --storageProfile:<VM ID>=<value>. 
                                   Only applies to vCloud targets version 5.5 
                                   or newer. 
     --targetPEM                 : File path to PEM formatted file used to 
                                   verify VI connections. 
     --targetSSLThumbprint       : SSL fingerprint of TARGET. OVF Tool verifies
                                   the SSL fingerprint it gets from TARGET if 
                                   the value is set. 
 -tt/--targetType                : Explicitly express that target is OVF, OVA, 
                                   VMX, VI, vCloud, ISO, FLP, vApprun 
     --vCloudTemplate            : Create only a vApp template. Default value 
                                   is false 
     --vService                  : Set a vService assignment in the deployed 
                                   OVF package. A vService assignment is set 
                                   using the syntax 
                                   --vService:<dependencyId>=<providerId>. 
     --verifyOnly                : Do not upload the source but only verify it 
                                   against the target host. Applies to VI 4 
                                   targets only. 
 -v /--version                   : Prints the version of this tool.
     --viCpuResource             : Specify the CPU resource settings for 
                                   VI-locator targets. The syntax is 
                                   --viCpuResource=<shares>:<reservation>:<limit>.
     --viMemoryResource          : Specify the CPU resource settings for 
                                   VI-locator targets. The syntax is 
                                   --viMemoryResource=<shares>:<reservation>:<limit>.
 -vf/--vmFolder                  : Target VM folder in VI inventory (relative 
                                   to datacenter). 

For more help, type: --help <topic>, where topics are:
 locators    : For detailed source and destination locator syntax
 examples    : For examples of use
 config      : For syntax of configuration files
 debug       : For debug purpose
 integration : For a list of options primarily used when ovftool is exec'ed 
               from another tool or shellscript. 

コマンドovftoolの実行例の表示

$ ovftool --help examples
Source Locator Examples:

   /ovfs/my_vapp.ovf

   /vms/my_vm.vmx

   ~/my_vApprun_workspace/MyVm

   vi://username:pass@localhost/my_datacenter/vm/    \
      my_vms_folder/my_vm_name

Destination Locator Examples:

   /ovfs/my_vapp.ovf

   /vms/my_vm.vmx

   ~/my_vApprun_workspace/MyVM

   vi://username:pass@localhost/my_datacenter/host/    \
      esx01.example.com
   vi://username:pass@localhost/my_datacenter/host/    \
      esx01.example.com/Resources/my_resourcepool

   Note: the /host/ and /Resources/ part of the above inventory path are
         fixed and must be specified when using a vi destination locator.
         The /Resources/ part is only used when specifying a resource
         pool.

Examples:

   ovftool --vService:vDep1=provider_1 /ovfs/my_vapp.ovf
     vi://username:pass@localhost/my_datacenter/host/esx01.example.com
   (specify a vService dependency)

   ovftool -tt=vmx /ovfs/my_vapp.ovf /vms/
   (.ovf file to .vmx file. Result files are /vms/my_vapp/my_vapp.[vmx|vmdk])

   ovftool /vms/my_vm.vmx /ovfs/my_vapp.ovf
   (.vmx file to .ovf file. Result is put in /ovfs/my_vapp.[ovf|vmdk])

   ovftool https://my_ovf_server/ovfs/my_vapp.ova /vm/my_vm.vmx
   (.ova file to .vmx file)

   ovftool /ovfs/my_vapp.ovf vi://username:pass@my_esx_host
   (.ovf file to ESX host using default mappings)

   ovftool /ovfs/my_vm.vmx vi://username:pass@my_esx_host
   (.vmx file to ESX host using default mappings)

   ovftool http://my_ovf_server/ovfs/my_vapp.ovf \
           vi://username:pass@my_esx_host
   (.ovf file from a web server to ESX host using defaults)

   ovftool /ovfs/my_vapp.ovf \
           vi://username:pass@my_vc_server/?ip=10.20.30.40
   (.ovf file to vCenter server using managed ESX host ip address)

   ovftool vi://username:pass@my_vc_server/my_datacenter?ds=\
           [Storage1] foo/foo.vmx c:\ovfs\
   (VM on ESX/vCenter server to OVF using datastore location query)

   ovftool /ovfs/my_vapp.ovf \
           vi://username:pass@my_vc_server/my_datacenter/host/my_host
   (.ovf file to vCenter server using vCenter inventory path)

   ovftool vi://username:pass@my_host/my_datacenter/vm/my_vm_folder/my_vm_name \
           /ovfs/my_vapp.ovf
   (VC/ESX vm to .ovf file)

   ovftool /virtualmachines/MyVM.vmx \
           ~my_vApprun_workspace/ 
   (Imports a .vmx file into a vApprun workspace using default name)

   ovftool https://my_ovflib/vm/my_vapp.ovf
   (shows summary information about the OVF package [probe mode])

   ovftool http://my_ovflib/vm/my_vapp.ovf \
           vcloud://username:pass@my_cloud?org=MyOrg&vdc=MyVDC&catalog=MyCatalog&vapp=myVapp
   (Imports an OVF from http into a vCloud instance and name the vApp myVapp)

    ovftool http://my_ovflib/vm/my_vapp.ovf \
           vcloud://username:pass@my_cloud?org=MyOrg&vdc=MyVDC&catalog=MyCatalog&vappTemplate=myTemplate
   (Imports an OVF from http into a vCloud instance and create vApp template)

   ovftool vi://username:pass@my_host/my_datacenter/vm/my_vm_folder/my_vm_name \
           vcloud://username:pass@my_cloud?org=MyOrg&vdc=MyVDC&catalog=MyCatalog&vapp=myVapp
   (Imports a VM from VI into a vCloud instance and name the vApp myVapp)

   ovftool vcloud://username:pass@my_cloud?org=MyOrg&vdc=MyVDC&catalog=MyCatalog&vapp=myVapp \
           /ovfs/myVapp.ovf
   (Exports a VM from a vCloud instance into an OVF package)