[ovirt-users] Add multiple files to a VM via cloud-init

[Branimir Pejakovic]

On Thu, Oct 30, 2014 at 12:02 PM, Shahar Havivi <shaharh at redhat.com> wrote:

> On 30.10.14 10:06, Branimir Pejakovic wrote:
> > On Thu, Oct 30, 2014 at 7:22 AM, Shahar Havivi <shaharh at redhat.com>
> wrote:
> >
> > > On 29.10.14 17:35, Branimir Pejakovic wrote:
> > > > Hi list,
> > > >
> > > > I was wondering is there a way to add multiple files to a vm via
> > > cloud-init
> > > > using python SDK. I was able to add /etc/resolv.conf and
> additionally I
> > > > would like to add config files for NICs (ifcfg-ethX) with appropriate
> > > > values (ip,gw,netmask). I used an example given here:
> > > > http://www.ovirt.org/Features/Cloud-Init_Integration . But
> > > unfortunately I
> > > > cannot do the same thing If I want to write multiple files to a vm in
> > > > params.Action class.
> > > >
> > > > Thank you in advance!
> > > you can use the custom script text box in oVirts cloud-init section,
> > > there you can add any cloud-init section - adding files examples can be
> > > found
> > > here:
> > >
> > >
> http://cloudinit.readthedocs.org/en/latest/topics/examples.html#writing-out-arbitrary-files
> > >
> > >   Shahar Havivi.
> > >
> > >
> > Hi Shahar,
> >
> > Thank you for the reply.
> >
> > To be honest I knew for those scripts but I want to do it in automate
> > fashion just like in that example that I put in my original message. I
> have
> > tried to specify in params.Files class multiple files:
> >
> > vm_file1 = params.Files(file=[params.File(name = 'file1', content =
> > file1_content, type_= 'PLAINTEXT')])
> > vm_file2 = params.Files(file=[params.File(name = 'file2', content =
> > file2_content, type_= 'PLAINTEXT')])
> >
> > and then give them as arguments to params.CloudInit _init_ constructor
> > (files=...)  just like in that example above but it seems that I am doing
> > something wrong because it does not write multiple files - it writes only
> > when you specify one file all right. The exception is "Error: 'list'
> object
> > has no attribute 'export'" (I tried to specify those files as a list -
> > files=[vm_file1,vm_file2]).
> >
> > Thanks for any help.
> The custom script is currently the only option to add files via Cloud-Init
>
> Thanks,
>   Shahar Havivi.
>
>
Hi Shahar,

Granted. But the example in python
http://www.ovirt.org/Features/Cloud-Init_Integration uses custom script :)
I just want to know how to do the same thing in case when I want to write
more than one file to a VM - and yes  - all those multiple files that I
want to write are specified via custom scripts.

>From the link - (The "Python SDK" paragraph: scontent object holds the
custom script):

 scontent = "write_files:\n-   content: |\n        search
example.com\n        nameserver 10.10.10.1\n        nameserver
10.10.10.2\n    path: /etc/resolv.conf"

For example (and just for example), I want to write to /etc/issue and
/etc/hosts not only /etc/resolv.conf. In essence, when vm goes to run-once
mode I want to write more than one file to a vm via Python (using
CloudInit) in automated fashion (and not touching oVirt GUI at all).

Thanks in advance!

Best regards,

Branimir
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