DataSourceNotFoundException - cloud-init fails for cloud-images VHD image with nova-hyperv as compute

[Larry Michel]

I tried using the VHD image from the https://cloud-images.ubuntu.com/releases/trusty/release/ with the nova-hyperv charm deployed for compute, and cloud-init fails:

In the console.log for the instance on the nova-hyperv unit, I see this error:

 * Stopping System V runlevel compatibility^[[74G[ OK ]^M^M
Can not apply stage final, no datasource found! Likely bad things to come!^M
------------------------------------------------------------^M
Traceback (most recent call last):^M
  File "/usr/bin/cloud-init", line 318, in main_modules^M
    init.fetch()^M
  File "/usr/lib/python2.7/dist-packages/cloudinit/stages.py", line 308, in fetch^M
    return self._get_data_source()^M
  File "/usr/lib/python2.7/dist-packages/cloudinit/stages.py", line 236, in _get_data_source^M
    pkg_list)^M
  File "/usr/lib/python2.7/dist-packages/cloudinit/sources/__init__.py", line 263, in find_source^M
    raise DataSourceNotFoundException(msg)^M
DataSourceNotFoundException: Did not find any data source, searched classes: ()^M
------------------------------------------------------------^M
^M^M

This was recreated by Cloudbase, and this was their observation:

"So apparently the trusty VHD image from cloud-images (https://cloud-images.ubuntu.com/releases/trusty/release/) does not have cloud-init configured for OpenStack.
Wondering if that’s on purpose because the cloud image description says "HyperV images for use with Microsoft Azure or SCVMM".

So I ended up converting the Qcow2 trusty cloud image (which I knew it is working with OpenStack) into VHDx:

qemu-img convert -f qcow2 -O vhdx trusty-server-cloudimg-amd64-disk1.img trusty-server-cloudimg-amd64-disk1.vhdx

And upload it into glance:

      glance image-create –name trusty-hyperv --file ./trusty-server-cloudimg-amd64-disk1.vhdx --disk-format vhd --container-format bare –progress

And then boot a VM and everything went fine. I was able to ping/SSH the VM."

[Larry Michel (lmic)]

It also worked for me when I tried the qemu-img converson.

[Dan Watkins (oddbloke)]

Hi Larry,

Thanks for filing this bug. That image is indeed only intended to work in Azure environments, so I'm going to mark this bug as Invalid.

Thanks!

[James Falcon (falcojr)]

Tracked in Github Issues as https://github.com/canonical/cloud-init/issues/2740