[BUG] Installation fails on unendorsed distribution

[arackhaen]

Describe the bug: Installation of WALinuxAgent fails on unendorsed distribution.

Installing WALinuxAgent on Gentoo failed:
"Traceback (most recent call last):
File "/usr/local/src/WALinuxAgent/azurelinuxagent/common/future.py", line 77, in get_linux_distribution
supported = platform._supported_dists + (supported_dists,)
AttributeError: module 'platform' has no attribute '_supported_dists'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/src/WALinuxAgent/setup.py", line 28, in
from azurelinuxagent.common.osutil import get_osutil
File "/usr/local/src/WALinuxAgent/azurelinuxagent/common/osutil/init.py", line 18, in
from azurelinuxagent.common.osutil.factory import get_osutil
File "/usr/local/src/WALinuxAgent/azurelinuxagent/common/osutil/factory.py", line 22, in
from azurelinuxagent.common.version import DISTRO_NAME, DISTRO_CODE_NAME, DISTRO_VERSION, DISTRO_FULL_NAME
File "/usr/local/src/WALinuxAgent/azurelinuxagent/common/version.py", line 234, in
distro = get_distro()
File "/usr/local/src/WALinuxAgent/azurelinuxagent/common/version.py", line 114, in get_distro
osinfo = get_linux_distribution(0, 'alpine')
File "/usr/local/src/WALinuxAgent/azurelinuxagent/common/future.py", line 95, in get_linux_distribution
return get_linux_distribution_from_distro(get_full_name)
File "/usr/local/src/WALinuxAgent/azurelinuxagent/common/future.py", line 106, in get_linux_distribution_from_distro
distro.linux_distribution(
NameError: name 'distro' is not defined"

Is WALinuxAgent ment to support other distibutions too (thaan just endorsed ones)?

[maddieford]

@arackhaen for python >= 3.8 you'll need the distro module. You can see our requirements here: https://github.com/Azure/WALinuxAgent/blob/master/requirements.txt

[AkechiShiro]

@maddieford this module needs to be installed as a system-wide package?

And it is exactly this package : https://pypi.org/project/distro/ right ?

[maddieford]

Yes, system-wide and that is the correct package