vdsm-python package on Debian based systems

[rohankrishnadev]

In role backend_setup there is a task to check whether the package vdsm-python is installed. This seems to be specific to operating systems in the RedHat family. This isn't an issue as ignore_errors is set to yes

gluster-ansible-infra/roles/backend_setup/tasks/main.yml

Line 11 in bd5dda3

- name: Check if vdsm-python package is installed or not

However, later on there is a task to 'Re-generate new LVM Filrer rules' which uses vdsm-python. This task fails on Debian like systems. This should either be modified to include operating systems from the Debian family or ignore_errors could be set to yes on this task as well.

gluster-ansible-infra/roles/backend_setup/tasks/regenerate_new_lvm_filter_rules.yml

Line 4 in bd5dda3

vdsm-tool config-lvm-filter -y

[hunter86bg]

We should use ansible-native way to detect if the package (oVirt) is deployed or not.
#122 should fix it . Tested on Ubuntu so far.