[ovirt-users] Re: Question about cloud-init
On Mon, Aug 2, 2021 at 10:22 AM Tommy Sway <sz_cuitao(a)163.com> wrote:
Please note that once the VM booted, the only way to provide the cloud-init payload is by
using Run-Once.
For a VM that didn't boot, a regular run will work as well.
Do you mean that you can use cloud-init for the first normal startup of a virtual machine
that has not yet been booted, and then you can't use cloud-init for subsequent normal
startup?
Yes. This is for safety from overriding a configuration on future boots.
Is it possible to use cloud-init with the run-once boot option as
long as the virtual machine has already been started?
Yes, if you set it in run-once
the payload will be included to the VM
on boot, regardless if it booted already or not.
-----Original Message-----
From: users-bounces(a)ovirt.org <users-bounces(a)ovirt.org> On Behalf Of Liran
Rotenberg
Sent: Sunday, August 1, 2021 3:01 PM
To: tommy <sz_cuitao(a)163.com>
Cc: users(a)ovirt.org
Subject: [ovirt-users] Re: Question about cloud-init
On Sat, Jul 31, 2021 at 7:09 AM tommy <sz_cuitao(a)163.com> wrote:
>
> Hello, I have a question about cloud-init:
>
> After installing vm, I installed cloud-init immediately, and enabled its four
services, and then I can use cloud-init in the admin interface.
>
>
>
> However, I don't know how cloud-init knows where to get the relevant information
(such as host name, SSH secret key, etc.) that I configured on the admin interface ? For
I haven't configured the data source for cloud-init.
Hi,
The relevant information comes as a payload to the VM, a CD-ROM containing the data
source.
>
> Why it can works ?
>
Cloud-init detects the data source and configures the OS.
Please note that once the VM booted, the only way to provide the cloud-init payload is by
using Run-Once.
For a VM that didn't boot, a regular run will work as well.
Regards,
Liran
>
>
> Thanks!
>
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