The package dhcpcd5 gets installed, if not installed already, to configure IP settings for the interfaces and update /etc/resolv.conf:
pi@noads:~ $ tail /etc/dhcpcd.conf
[..]
interface eth0
static ip_address=10.0.0.2/24
static routers=10.0.0.1
static domain_name_servers=127.0.0.1