Installing template from URL is not possible unless it contains a predefined extension in the URL

[Overv]

ISSUE TYPE

• Improvement Request

COMPONENT NAME

API

CLOUDSTACK VERSION

4.11.2

CONFIGURATION

N/A

OS / ENVIRONMENT

N/A

SUMMARY

It is not possible to install a template from a URL unless it matches some predefined postfix.

STEPS TO REPRODUCE

Try to install a template from the URL https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img.

EXPECTED RESULTS

I expected CloudStack to just download the image and install it as the QCOW2 image that it is.

ACTUAL RESULTS

CloudStack will return an error stating that the URL does not end on .qcow2. This seems like an unnecessary limitation, because now I need to rehost this image with a different name just because CloudStack refuses to download it otherwise.

[DaanHoogland]

@Overv this limitation is due to some decision in the past making a check on the target for a template based on the extension. A call to the file command would be more correct but would require a pre-download to implement. I wonder if a magic number check can be performed on a stream to abandon download if it fails.

[Overv]

@DaanHoogland An extra parameter that disables the check would also be a solution. The UI could optionally implement this by showing a warning and asking if the user would like to skip/postpone the check.

[yadvr]

Here's a hack you can try with your url... Pass url?file=.qcow2

[Overv]

@rhtyd Ah that is a good workaround, thanks.

[DaanHoogland]

new features go on .0s