Hello,
I am creating a script that spins up VMs, including the creation of VDIs and
VBDs, respectively. But I have came across an issue with it and have been
following along the documentation, found here:
http://xapi-project.github.io/xen-api/overview.html
<http://xapi-project.github.io/xen-api/overview.html>
When I go to create a disk image, it constantly fails:
Collecting info on the VM Specs.....
Connection Successful!
Checking for template: CentOS 7
Server has 75 VM objects (this includes templates):
Found: OpaqueRef:858d7cdb-6882-7055-74d1-2e6162533d59 CentOS 7
('Selected template: ', 'CentOS 7')
Installing new VM from the template
Adding non-interactive to the kernel commandline
Choosing an SR to instantiate the VM's disks
Choosing SR: NFS VM disks (uuid 95a58c17-6a0d-1d61-33e2-e445a5e147b3)
Rewriting the disk provisioning XML
Creating Disk for VM..... Test
Connection Successful!
Caught ['UUID_INVALID', 'VDI', '95a58c17-6a0d-1d61-33e2-e445a5e147b3']:
Traceback (most recent call last):
File "/Users/ryankahil/Xen-Builder/bsdxenbuilder.py", line 148, in create_vdi
src_vdi = session.xenapi.VDI.get_by_uuid(vdi_uuid)
File "/Library/Python/2.7/site-packages/XenAPI.py", line 229, in __call__
return self.__send(self.__name, args)
File "/Library/Python/2.7/site-packages/XenAPI.py", line 133, in
xenapi_request
result = _parse_result(getattr(self, methodname)(*full_params))
File "/Library/Python/2.7/site-packages/XenAPI.py", line 203, in _parse_result
raise Failure(result['ErrorDescription'])
Failure: ['UUID_INVALID', 'VDI', '95a58c17-6a0d-1d61-33e2-e445a5e147b3’]
I am following the documentation as best as possible and can’t seem to find out
why the UUID is invalid. The SR I am using is NFS if that helps. And have taken
some code snippets for VDI and VBD creations in your GitHub repo to see if
there is something I am doing wrong but again, the same issue. Here is a
snippet of my code:
def create_vdi(ctx,name,sr,readonly,hdspace,diskimage,vdi_uuid):
click.echo("Creating Disk for VM..... " + name)
session = xen_session()
vdi = None
try:
src_vdi = session.xenapi.VDI.get_by_uuid(vdi_uuid)
# sr = session.xenapi.VDI.get_SR(src_vdi)
vdi_args = session.xenapi.VDI.get_record(src_vdi)
vdi = session.xenapi.VDI.create(vdi_args)
create_vbd(name,vdi,readonly,userdevice)
except Exception, e:
print("Caught %s: " % str(e))
traceback.print_exc()
The vdi_uuid is provided in another method:
sr_pool = session.xenapi.pool.get_all()[0]
default_sr = session.xenapi.pool.get_default_SR(sr_pool)
default_sr = session.xenapi.SR.get_record(default_sr)
print("Choosing SR: %s (uuid %s)" % (default_sr['name_label'],
default_sr['uuid']))
print("Rewriting the disk provisioning XML")
spec = provision.getProvisionSpec(session, vm)
spec.setSR(default_sr['uuid'])
provision.setProvisionSpec(session, vm, spec)
create = session.xenapi.VM.provision(vm)
session.xenapi.VM.start(vm,False, True)
vdi_uuid = default_sr['uuid’]
I have noticed that once the VM is created (in a stopped state due to having no
boot disk), simply attaching a DVD drive allows me to install CentOS. But is
there a way to programmatically do this with XenAPI (I thought creating the
VDI/VBD does this for me)?
Thanks,
Ryan_______________________________________________
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