[Engine-devel] [Users] Related to python script for Attach Cd (.iso) to a vm

[Michael Pasternak]

Hi Romil,

In general you can use api guide [1] for this, anyway here is example:

1. create vm
============
...

2. insert cdrom
===============

vm = api.vms.get(name="myvm")
cdrom = vm.cdroms.get(id="00000000-0000-0000-0000-000000000000")
isofile = params.File(id="myiso.iso")
cdrom.set_file(isofile)
cdrom.update()

3. change boot order (to boot from cdrom and then from hd)
==========================================================

os=params.OperatingSystem(boot=[params.Boot(dev='cdrom'), params.Boot(dev='hd')], ...)
api.vms.add(params.VM(name='myvm2',
                      os=os,
                      cluster=api.clusters.get('mycluster'),
                      template=api.templates.get('mytemplate')))

4. run vm
=========
...

[1] https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Virtualization/3.1-Beta/html-single/Developer_Guide/index.html#sect-REST_API_Guide-Example-Attach_CDROM


On 11/02/2012 09:56 AM, Romil Gupta wrote:
> 
> Hello ,
> 
> *I want to  write a script to attach a  '.iso' image to a vm *
> so ,can you please help me or tell me some api so that i can continue my work !!!
> I have some '.iso ' file in my storage .
> 
> script       *rhevm_test.py*
> 
> from ovirtsdk.api import API
> from ovirtsdk.xml import params
> import time
> 
> rhevm_uri = "https://rhevm301.xxx.xx.com:8443/api"
> rhevm_username = "admin at rhevm301.xxx.xx.com <mailto:admin at rhevm301.xxx.xx.com>"
> rhevm_password = "iso*help"
> 
> api = API(url=rhevm_uri, username=rhevm_username, password=rhevm_password)
> print "Connected to RHEVM Successful"
> 
> MB = 1024*1024
> GB = 1024*MB
> VM_NAME = 'test_vm'
> DESCRIP = 'testing vm'
> CLUSTER_NAME =  'Default'
> STORAGE_NAME =  'rhevmVMdata'
> 
> domain_name= 'rhevmiso'  
> domain_type = 'ISO'
> 
> 
> try:
>     api.vms.add(params.VM(name=VM_NAME,description=DESCRIP, memory=2*GB,cluster=api.clusters.get(CLUSTER_NAME), template=api.templates.get('Blank') , cdroms =
> 'CentOS-6.2-x86_64-LiveCD.iso '))
>     
>     print 'VM created'
> 
>     api.vms.get(VM_NAME).nics.add(params.NIC(name='nic1', network=params.Network(name='rhevm'), interface='Red Hat VirtIO'))
>     print 'NIC added to VM'
> 
>    
> api.vms.get(VM_NAME).disks.add(params.Disk(storage_domains=params.StorageDomains(storage_domain=[api.storagedomains.get(STORAGE_NAME)]),size=512*MB,status=None,interface='VirtIO',format='Preallocated',sparse=True,bootable=True))
> 
>     print 'Disk added to VM'
>     print 'Waiting for VM to reach Down status'
>     while api.vms.get(VM_NAME).status.state != 'down':
>         time.sleep(1)
> except Exception as e:
>     print 'Failed to create VM with disk and NIC\n%s' % str(e)
> 
> time.sleep(10)
> 
> try:
>     if api.vms.get(VM_NAME).status.state != 'up':
>         print 'Starting VM'
>         api.vms.get(VM_NAME).start()
>         print 'Waiting for VM to reach Up status'
>         while api.vms.get(VM_NAME).status.state != 'up':
>             time.sleep(1)
>     else:
>         print 'VM already up'
> except Exception as e:
>      print 'Failed to Start VM:\n%s' % str(e)
> 
>  
> and got some exceptions
> 
> Connected to RHEVM Successful
> Failed to create VM with disk and NIC
> 'str' object has no attribute 'export'
> Failed to Start VM:
> 'NoneType' object has no attribute 'status'
> 
> if i remove this cdroms = 'CentOS-6.2-x86_64-LiveCD.iso '  the code will works fine and it will create a vm with blank template w/o any '.iso' attached !!
> 
> 
> *
> *
> *
> *
> *
> *
> *
> *
> *With Regards,*
> *Romil*
> 
> 
> 
> 
> 
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> http://lists.ovirt.org/mailman/listinfo/users


-- 

Michael Pasternak
RedHat, ENG-Virtualization R&D