With ovirt 4.5.2 you can use the new ovirt-img command:
$ ovirt-img download-disk \
--engine-url https://engine.com \
--username admin@internal \
--cafile /path/to/cert.pem \
{disk-id} download.qcow2
This downloads the disk with ID "disk-id" into download.qcow2 in the current local directory.
There are options to control the destination image format (e.g. --format raw).
See `ovirt-img download-disk --help`.
You can also add configuration for your setup (you can have many):
$ cat ~/.config/ovirt-img.conf
[engine1]
engine_url = https://engine.com
username = admin@internal
password = password
cafile = /path/to/cert.pem
$ cat ~/.config/ovirt-img.conf
[engine1]
engine_url = https://engine.com
username = admin@internal
password = password
cafile = /path/to/cert.pem
And then just select the section name in the configuration that you want to use:
$ ovirt-img download-disk --config engine1 {disk-id} image.qcow2
[ 100% ] 6.00 GiB, 16.85 s, 364.64 MiB/s | download completed
[ 100% ] 6.00 GiB, 16.85 s, 364.64 MiB/s | download completed
The command is already installed with all the dependencies on hosts and engine, and available
via the ovirt-imageio-client package on any host (if you have the right repos).
ovirt-img should be much faster than curl since it understands image sparseness so it does not
transfer gigabytes of zeroes over the wire.
