Re: [ovirt-devel] cloud-init metadata service
On Wed, Mar 1, 2017 at 4:53 PM Marc Young <3vilpenguin(a)gmail.com> wrote:
Ive looked through what documentation I can find and i only come up
on bug
reports from years ago, but: is there anyway to get metadata about a oVirt
server metadata from the context of a VM ? cloud-init supports a metadata
service that sits on 169.254.169.254 to retrieve info like instance-id etc.
This is very useful in AWS which I'm familiar with.
We support cloud-init via config drive, not over the network.
My context is that I'd like to run some assertions against a VM and the
test framework I'm using runs all assertions from within the VM itself. So
If i wanted to assert that the host running my VM is "x.foo.com" I'd have
to be able to retrieve that from within the VM. I can do that via the REST
API but that requires me to get a REST user/pass inside the vm and feels
hacky. The common way of doing this at openstack/aws is to curl the
metadata service which replies with information only relevant to the
machine asking.
Feels OK to me - doesn't sound too hacky to me.
You can do it via Ansible, but still need creds.
I don't remember if anything in the VM BIOS (dmidecode) will help you there
- I think not.
Y.
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