4:32 p.m.
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(a)redhat.com
A: "Amedeo Salvati" amedeo(a)oscert.net, users(a)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.