iankelling.org Git - automated-distro-installer/blob - fai/config/scripts/DEBIAN/30-interface

   1 #! /bin/bash
   2
   3 netplan_yaml() {
   4     # network configuration using ubuntu's netplan.io
   5     local IFNAME="$1"
   6     local METHOD="$2"
   7     echo     "Generating netplan configuration for $IFNAME ($METHOD)" >&2
   8     echo     "# generated by FAI"
   9     echo     "network:"
  10     echo     "  version: 2"
  11     echo     "  renderer: $RENDERER"
  12     case "$RENDERER" in
  13       networkd)
  14         echo     "  ethernets:"
  15         echo     "    $IFNAME:"
  16         case "$METHOD" in
  17           dhcp)
  18             echo "      dhcp4: true"
  19             ;;
  20           static)
  21             echo "      addresses: [$CIDR]"
  22             echo "      gateway4: $GATEWAYS_1"
  23             echo "      nameservers:"
  24             echo "        search: [$DOMAIN]"
  25             echo "        addresses: [${DNSSRVS// /, }]"
  26             ;;
  27         esac
  28     esac
  29 }
  30
  31 iface_stanza() {
  32     # classic network configuration using /etc/network/interfaces
  33     local IFNAME="$1"
  34     local METHOD="$2"
  35     echo "Generating interface configuration for $IFNAME ($METHOD)" >&2
  36     echo "# generated by FAI"
  37     echo "auto $IFNAME"
  38     echo "iface $IFNAME inet $METHOD"
  39     case "$METHOD" in
  40       static)
  41         echo "    address $IPADDR"
  42         echo "    netmask $NETMASK"
  43         echo "    broadcast $BROADCAST"
  44         echo "    gateway $GATEWAYS"
  45         ;;
  46     esac
  47 }
  48
  49 newnicnames() {
  50
  51     # determine predictable network names only for stretch and above
  52
  53     [ $do_init_tasks -eq 0 ] && return
  54     [ -z "$NIC1" ] && return
  55     ver=$($ROOTCMD dpkg-query --showformat='${Version}' --show udev)
  56     if dpkg --compare-versions $ver lt 220-7; then
  57         return
  58     fi
  59
  60
  61     fields="ID_NET_NAME_FROM_DATABASE ID_NET_NAME_ONBOARD ID_NET_NAME_SLOT ID_NET_NAME_PATH"
  62     for field in $fields; do
  63         name=$(udevadm info /sys/class/net/$NIC1 | sed -rn "s/^E: $field=(.+)/\1/p")
  64         if [[ $name ]]; then
  65             NIC1=$name
  66             break
  67         fi
  68     done
  69     if [[ ! $name ]]; then
  70         echo "$0: error: could not find systemd predictable network name. Using $NIC1."
  71     fi
  72 }
  73
  74 if [ -z "$NIC1" ]; then
  75     echo "WARNING: \$NIC1 is not defined. Cannot add ethernet to /etc/network/interfaces."
  76 fi
  77 CIDR=$(ip -o -f inet addr show $NIC1 | awk '{print $4}')
  78 newnicnames
  79
  80 case "$FAI_ACTION" in
  81   install|dirinstall)
  82     ifclass DHCPC && METHOD=dhcp || METHOD=static
  83     ifclass XORG && RENDERER=NetworkManager || RENDERER=networkd
  84
  85     if [ -d $target/etc/netplan ]; then
  86         # Ubuntu >= 17.10 with netplan.io
  87         if [ -n "$NIC1" ]; then
  88             netplan_yaml $NIC1 $METHOD > $target/etc/netplan/01-${NIC1}.yaml
  89         fi
  90     elif [ -d $target/etc/network/interfaces.d ]; then
  91         # ifupdown >= 0.7.41 (Debian >= 8, Ubuntu >= 14.04)
  92         iface_stanza lo loopback > $target/etc/network/interfaces.d/lo
  93
  94         if [ -n "$NIC1" -a ! -f $target/etc/NetworkManager/NetworkManager.conf ]; then
  95             iface_stanza $NIC1 $METHOD > $target/etc/network/interfaces.d/$NIC1
  96         fi
  97     else
  98         (
  99             iface_stanza lo loopback
 100             iface_stanza $NIC1 $METHOD
 101         ) > $target/etc/network/interfaces
 102     fi
 103
 104     if ! ifclass DHCPC ; then
 105         [ -n "$NETWORK" ] && echo "localnet $NETWORK" > $target/etc/networks
 106         if [ ! -L $target/etc/resolv.conf -a -e /etc/resolv.conf ]; then
 107             cp -p /etc/resolv.conf $target/etc
 108         fi
 109     fi
 110     ;;
 111 esac
 112
 113 # here fcopy is mostly used, when installing a client for running in a
 114 # different subnet than during the installation
 115 fcopy -iM /etc/resolv.conf
 116 fcopy -iM /etc/network/interfaces /etc/networks
 117
 118 exit $error