Use ‘ubuntu’ recipe
It is the output sources.list
$ cat /etc/apt/sources.list
#
# Ubuntu trusty - Generated by Chef
#
deb http://us.archive.ubuntu.com/ubuntu trusty main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu trusty main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu trusty-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu trusty-updates main restricted universe multiverse
#
# Security updates
#
deb http://security.ubuntu.com/ubuntu trusty-security main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted universe multiverse