# this can't be {us.,}archive.ubuntu.org because on the box
# with dnsmasq changing that host to itself, rebuilding this fails
# unless the container is running already
deb http://mirrors.sonic.net/ubuntu bionic main universe
deb http://mirrors.sonic.net/ubuntu bionic-updates main universe
deb http://mirrors.sonic.net/ubuntu bionic-backports main universe
deb http://mirrors.sonic.net/ubuntu bionic-security main universe