cat << EOF > /etc/netplan/00-cloudinit-network-config.yaml
# This is the initial network config.
# It can be overwritten by cloud-init or console-conf.
network:
    version: 2
    ethernets:
        all-en:
            match:
                name: "en*"
            dhcp4: true
        all-eth:
            match:
                name: "eth*"
            dhcp4: true
EOF


# remove the source line from ENI

cat << EOF > /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
# source /etc/network/interfaces.d/*.cfg
EOF