traefik v2 from cern metachart
This commit is an adaptation of the upstream commit https://review.opendev.org/c/openstack/magnum/+/697071
Signed-off-by: Diogo Guerra diogo.filipe.tomas.guerra@cern.ch Change-Id: I4b5b3238f405c65b85b916e4fbe71cb37d5b548e