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fai-configspace/scripts/DEBIAN/30-interface

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#! /bin/bash
netplan_yaml() {
# network configuration using ubuntu's netplan.io
local IFNAME="$1"
local METHOD="$2"
echo "Generating netplan configuration for $IFNAME ($METHOD)" >&2
echo "# generated by FAI"
echo "network:"
echo " version: 2"
echo " renderer: $RENDERER"
case "$RENDERER" in
networkd)
echo " ethernets:"
echo " $IFNAME:"
case "$METHOD" in
dhcp)
echo " dhcp4: true"
;;
static)
echo " addresses: [$CIDR]"
echo " gateway4: $GATEWAYS_1"
echo " nameservers:"
echo " search: [$DOMAIN]"
echo " addresses: [${DNSSRVS// /, }]"
;;
esac
esac
}
iface_stanza() {
# classic network configuration using /etc/network/interfaces
local IFNAME="$1"
local METHOD="$2"
echo "Generating interface configuration for $IFNAME ($METHOD)" >&2
echo "# generated by FAI"
echo "auto $IFNAME"
echo "iface $IFNAME inet $METHOD"
case "$METHOD" in
static)
echo " address $IPADDR"
echo " netmask $NETMASK"
echo " broadcast $BROADCAST"
echo " gateway $GATEWAYS"
;;
esac
}
newnicnames() {
# determine predictable network names only for stretch and above
[ $do_init_tasks -eq 0 ] && return
[ -z "$NIC1" ] && return
ver=$($ROOTCMD dpkg-query --showformat='${Version}' --show udev)
if dpkg --compare-versions $ver lt 220-7; then
return
fi
fields="ID_NET_NAME_FROM_DATABASE ID_NET_NAME_ONBOARD ID_NET_NAME_SLOT ID_NET_NAME_PATH"
for field in $fields; do
name=$(udevadm info /sys/class/net/$NIC1 | sed -rn "s/^E: $field=(.+)/\1/p")
if [[ $name ]]; then
NIC1=$name
break
fi
done
if [[ ! $name ]]; then
echo "$0: error: could not find systemd predictable network name. Using $NIC1."
fi
}
if [ -z "$NIC1" ]; then
echo "WARNING: \$NIC1 is not defined. Cannot add ethernet to /etc/network/interfaces."
fi
CIDR=$(ip -o -f inet addr show $NIC1 | awk '{print $4}')
newnicnames
case "$FAI_ACTION" in
install|dirinstall)
ifclass DHCPC && METHOD=dhcp || METHOD=static
ifclass XORG && RENDERER=NetworkManager || RENDERER=networkd
if [ -d $target/etc/netplan ]; then
# Ubuntu >= 17.10 with netplan.io
if [ -n "$NIC1" ]; then
netplan_yaml $NIC1 $METHOD > $target/etc/netplan/01-${NIC1}.yaml
fi
elif [ -d $target/etc/network/interfaces.d ]; then
# ifupdown >= 0.7.41 (Debian >= 8, Ubuntu >= 14.04)
iface_stanza lo loopback > $target/etc/network/interfaces.d/lo
if [ -n "$NIC1" -a ! -f $target/etc/NetworkManager/NetworkManager.conf ]; then
iface_stanza $NIC1 $METHOD > $target/etc/network/interfaces.d/$NIC1
fi
else
(
iface_stanza lo loopback
iface_stanza $NIC1 $METHOD
) > $target/etc/network/interfaces
fi
if ! ifclass DHCPC ; then
[ -n "$NETWORK" ] && echo "localnet $NETWORK" > $target/etc/networks
if [ ! -L $target/etc/resolv.conf -a -e /etc/resolv.conf ]; then
cp -p /etc/resolv.conf $target/etc
fi
fi
;;
esac
# here fcopy is mostly used, when installing a client for running in a
# different subnet than during the installation
fcopy -iM /etc/resolv.conf
fcopy -iM /etc/network/interfaces /etc/networks
exit $error