Now debian:latest is debian:stretch in docker, but it will be debian:buster someday later, which upgrades lxc to 3.x. The lxc 3.x changes some config item name, and it will cause building error because of old config. So just holding debian in stretch before we are ready to upgrade lxc to 3.x.
Now
debian:latestisdebian:stretchin docker, but it will bedebian:bustersomeday later, which upgrades lxc to 3.x. The lxc 3.x changes some config item name, and it will cause building error because of old config. So just holding debian instretchbefore we are ready to upgrade lxc to 3.x.