
This patch is to fix a lack of required packages for building devstack environment and drop old focal support. * Add pip installation of pbr for ovn-metadata agent and netaddr for kuryr-kubernetes. * Remove boxes and playbooks for focal. Signed-off-by: Yasufumi Ogawa <yasufum.o@gmail.com> Change-Id: Ie345e50e09a3236d0c2ab9ff1494058bdc6c010b