[ovirt-users] cloud-init options under python-sdk

[Amedeo Salvati]

hello Juan|guys,

I still have problems with cloud-init options on python-sdk... now I'm trying to reset root password and according to xml available at http://www.ovirt.org/Features/Cloud-Init_Integration and specifically for user/pw:

...
<users>
  <user>
    <user_name>root</user_name>
    <password>myPass</password>
  </user>
</users>
...

I've changed action object with this example:

action = params.Action(
                        vm=params.VM(
                            initialization=params.Initialization(
                                cloud_init=params.CloudInit(
                                    host=params.Host(address="rheltest025"),
                                    users=params.Users(
                                        user=params.User(user_name="root", password="pippo")
                                        )
                                    )
                                )
                            )
                        )

but when i try to start a vm I got this error: "TypeError: 'User' object is not iterable"

somebody has some hints for resetting root password?

Best regards
Amedeo Salvati



Da: "Amedeo Salvati" amedeo at oscert.net
A: jhernand at redhat.com
Cc: users at ovirt.org
Data: Tue, 22 Jul 2014 15:50:58 +0200
Oggetto: Re: [ovirt-users] cloud-init options under python-sdk






> many thanks Juan it works!

> best regards
> a



> Da: "Juan Hernandez" jhernand at redhat.com
> A: "Amedeo Salvati" amedeo at oscert.net, users at ovirt.org
> Cc: 
> Data: Tue, 22 Jul 2014 15:32:45 +0200
> Oggetto: Re: [ovirt-users] cloud-init options under python-sdk


> > On 07/22/2014 02:55 PM, Amedeo Salvati wrote:
> > > hi Juan|guys,
> > > 
> > > thanks for hints! but unfortunatly it seems wont works, because I've
> > > launched vm with this simple code:
> > > 
> > > action =
> > > params.Action(vm=params.VM(initialization=params.Initialization(cloud_init=params.CloudInit(host=params.Host(name="rheltest014")))))
> > > vm.start( action )
> > > 
> > > but after boot the VM, cloud-init service hasn't set hostname and on
> > > cloud-init.log and cloud-init-output.log I cannot find any entry for
> > > setting hostname, instead if I use web ui it work's fine...
> > > 
> > > there are any ways to debug cloud-init jobs?
> > > the params params.Host is right for CloudInit host or is intended for
> > > host / hypervisor?
> > > 
> > > Best regards
> > > Amedeo Salvati
> > > 
> > 
> > To change the hostname you have to use the "address" property of the
> > "Host" class:
> > 
> >   host=params.Host(
> >       address="myhostname.example.com"
> >   )
> > 
> > The "Host" class is used for many things, including CloudInit and
> > hypervisors. But in this context it is just a container for the host name.
> > 
> > To debug cloud-init start the VM (with the GUI or with the RESTAPI),
> > then go to the hypervisor where it is actually running, and look for the
> > corresponding qemu-kvm process:
> > 
> >   # ps -ef | grep qemu-kvm | grep myvm
> > 
> > The qemu-kvm command line will have a parameter indicating the file that
> > contains the cloud-init data:
> > 
> >   -drive file=/var/run/vdsm/payload/...img
> > 
> > Copy that file somewhere, then mount it and inspect the content:
> > 
> >   # cp /var/run/vdsm/payload/...img /tmp/my.img
> >   # mount -o loop,ro /tmp/my.img /mnt
> >   # find /mnt
> >   ...
> >   # umount /mnt
> > 
> > 
> > > Da: "Juan Hernandez" jhernand at redhat.com
> > > A: "Amedeo Salvati" amedeo at oscert.net, users at ovirt.org
> > > Cc:
> > > Data: Tue, 22 Jul 2014 12:21:01 +0200
> > > Oggetto: Re: [ovirt-users] cloud-init options under python-sdk
> > > 
> > >> On 07/22/2014 11:48 AM, Amedeo Salvati wrote:
> > >> > hello guys!
> > >> >
> > >> > I'm writing some python code to start VMs, and based on operating system
> > >> > (at this moment centos6 nad centos7), I would like to use cloud-init
> > >> > options (available on web ui at run-once) to start them and resetting
> > >> > root password, change hostname and write some configuration files by
> > >> > using yaml semantics, but at this moment I was unable to find a way to
> > >> > do it...
> > >> >
> > >> > somebody know a way (or could send me some hints) using python-sdk to
> > >> > start A VM and pass to it cloud-init options?
> > >> >
> > >> > e.g. the portion of code I would like to change is vm.start() under
> > > rhel6|7:
> > >> >
> > >> > try:
> > >> > osVersion = vm.get_os().get_type()
> > >> > if (osVersion == "rhel_6x64" or osVersion == "rhel_6" or
> > >> > osVersion == "rhel_7x64") and CLOUDINIT == "yes":
> > >> > print "Starting VM: " + vm.name + " with cloud-init
> > >> > options"
> > >> > ----> vm.start() <---------- > else:
> > >> > print "Starting VM " + vm.name
> > >> > vm.start()
> > >> > while vmstat != 'down':
> > >> > sleep(1)
> > >> > vmstat = vm.get_status().state
> > >> > except Exception, err:
> > >> > print "Error on starting VM"
> > >> > print err
> > >> >
> > >> >
> > >> > Best regards
> > >> > Amedeo Salvati
> > >> >
> > >>
> > >> It should be something like this:
> > >>
> > >> from ovirtsdk.xml import params
> > >>
> > >> action = params.Action(
> > >> vm=params.VM(
> > >> initialization=params.Initialization(
> > >> cloud_init=params.CloudInit(
> > >> host=params.Host(
> > >> name="myvm"
> > >> ),
> > >> users=...,
> > >> files=...,
> > >> ...
> > >> )
> > >> )
> > >> )
> > >> )
> > >>
> > >> vm.start(action)
> > >>
> > >>
> > >> --
> > >> Dirección Comercial: C/Jose Bardasano Baos, 9, Edif. Gorbea 3, planta
> > >> 3ºD, 28016 Madrid, Spain
> > >> Inscrita en el Reg. Mercantil de Madrid – C.I.F. B82657941 - Red Hat S.L.
> > 
> > 
> > -- 
> > Dirección Comercial: C/Jose Bardasano Baos, 9, Edif. Gorbea 3, planta
> > 3ºD, 28016 Madrid, Spain
> > Inscrita en el Reg. Mercantil de Madrid – C.I.F. B82657941 - Red Hat S.L.



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