APT preferences can be used to influence package selection performed by APT during installation or upgrades. You can for example tell APT that you prefer packages from certain repositories or want to hold a package on a particular version no matter what (among other things).
By default, if you don't specify a version or provide a custom pin configuration,
debops.apt_preferences role will configure the specified packages to be
installed from the backports repository of the current OS release.
This role requires at least Ansible
v1.7.0. To install it, run:
ansible-galaxy install debops.apt_preferences