libvirt users - Jul 2010 - ESX - How to create a new domain

Hi,

I've been trying to figure out how to create a new domain(create a new
virtual machine) using the ESX driver.

The documentation at http://libvirt.org/drvesx.html says:

To define a new domain the driver converts the domain XML into a VMware VMX
file and uploads it to a datastore known to the ESX server. Because multiple
datastores may be known to an ESX server the driver needs to decide to which
datastores the VMX file should be uploaded. The driver deduces this
information from the path of the source of the first file-based harddisk
listed in the domain XML.

But I can't find a way to do this in virsh. Any ideas?

-George
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2010/7/16 George Goh <georgegoh at spodon.com>:
> Hi,
> I've been trying to figure out how to create a new domain(create a new
> virtual machine) using the ESX driver.
> The documentation at?http://libvirt.org/drvesx.html says:
> To define a new domain the driver converts the domain XML into a VMware VMX
> file and uploads it to a datastore known to the ESX server. Because
multiple
> datastores may be known to an ESX server the driver needs to decide to
which
> datastores the VMX file should be uploaded. The driver deduces this
> information from the path of the source of the first file-based harddisk
> listed in the domain XML.
> But I can't find a way to do this in virsh. Any ideas?
> -George
You quoted a paragraph that describes what the driver does internally
while defining a new domain. This paragraph is there because the way
it works internally has implications on how you have to specify disk
devices in the domain XML. It has nothing to do with the way you
define a new domain in general.

Defining a new domain using virsh works as with any other backend
supported by libvirt.

1) Create a domain XML config file test1.xml containing this example
config (assuming the default local datastore named 'Storage1' and the
default virtual port group named 'VM Network'):

<domain type='vmware'>
  <name>test1</name>
  <memory>524288</memory>
  <currentMemory>524288</currentMemory>
  <vcpu>1</vcpu>
  <os>
    <type arch='i686'>hvm</type>
  </os>
  <devices>
    <disk type='file' device='disk'>
      <source file='[Storage1] test1/test1.vmdk'/>
      <target dev='sda' bus='scsi'/>
      <address type='drive' controller='0' bus='0'
unit='0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <source file='[Storage1] iso/Fedora-13-i686-Live.iso'/>
      <target dev='hda' bus='ide'/>
      <address type='drive' controller='0' bus='0'
unit='0'/>
    </disk>
    <controller type='scsi' index='0'/>
    <controller type='ide' index='0'/>
    <interface type='bridge'>
      <source bridge='VM Network'/>
    </interface>
  </devices>
</domain>

2) Start virsh:

  virsh -c esx://example-esx-server.com/?no_verify=1

3) At the virsh prompt execute a define command:

  define /path/to/test1.xml

Currently this requires that you manually created the .vmdk file
'[Storage1] test1/test1.vmdk' before.

I'm currently working on the libvirt storage management for ESX. I
expect that libvirt 0.8.3 will be able to create new .vmdk files in an
ESX datastore.

Matthias