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

   1 #! /bin/bash
   2
   3 # modified from upstream fai example
   4 error=0; trap 'error=$(($?>$error?$?:$error))' ERR # save maximum error code
   5
   6 if ! ifclass STABLE; then
   7     if ifclass VM; then
   8         # older distro still uses eth0
   9         if ifclass BELENOS64; then
  10             NIC1=eth0
  11         else
  12             # For a vm, we only get  ID_NET_NAME_MAC from below,
  13             # but when it reboots, it uses ID_NET_NAME_SLOT.
  14             NIC1=ens3
  15         fi
  16     else
  17         # get persistent interface name. Note, these class conditions
  18         # will need to get modified for new oses. testing vm doesn't use
  19         # it right now, but other vms do I'm sure.
  20         for field in ID_NET_NAME_FROM_DATABASE \
  21                          ID_NET_NAME_ONBOARD \
  22                          ID_NET_NAME_SLOT \
  23                          ID_NET_NAME_PATH \
  24                          ID_NET_NAME_MAC; do
  25             name=$(udevadm info /sys/class/net/$NIC1 | sed -rn "s/^E: $field=(.+)/\1/p")
  26             if [[ $name ]]; then
  27                 NIC1=$name
  28                 break
  29             fi
  30         done
  31         if [[ ! $name ]]; then
  32             echo "$0: error: could not find systemd predictable network name"
  33             exit 1
  34         fi
  35     fi
  36 fi
  37
  38 if ifclass DHCPC && [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]
  39 then
  40     if ifclass VM; then
  41         cat > $target/etc/network/interfaces <<-EOF
  42         # generated by FAI
  43         auto lo $NIC1
  44         iface lo inet loopback
  45         iface $NIC1 inet dhcp
  46 EOF
  47     else
  48         cat > $target/etc/network/interfaces <<-EOF
  49         # generated by FAI
  50         auto lo br0
  51         iface lo inet loopback
  52         iface $NIC1 inet manual
  53         # make a bridge by default so we can have bridged vms.
  54         # Some example I read had stp on, but i don't need stp,
  55         # and it causes a vm to fail pxe boot, presumably unless
  56         # you add some delay.
  57         # http://wiki.libvirt.org/page/PXE_boot_%28or_dhcp%29_on_guest_failed
  58         iface br0 inet dhcp
  59           bridge_ports $NIC1
  60           bridge_stp off
  61           bridge_maxwait 0
  62 EOF
  63     fi
  64 elif [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]
  65 then
  66     [ -n "$IPADDR" ] && cat > $target/etc/network/interfaces <<-EOF
  67         # generated by FAI
  68         auto lo $NIC1
  69         iface lo inet loopback
  70         iface $NIC1 inet static
  71           address $IPADDR
  72           netmask $NETMASK
  73           broadcast $BROADCAST
  74           gateway $GATEWAYS
  75 EOF
  76     [ -n "$NETWORK" ] && echo "localnet $NETWORK" > $target/etc/networks
  77     if [ ! -L $target/etc/resolv.conf -a -e /etc/resolv.conf ]; then
  78         cp -p /etc/resolv.conf $target/etc
  79     fi
  80 fi
  81
  82 # here fcopy is mostly used, when installing a client for running in a
  83 # different subnet than during the installation
  84 fcopy -iM /etc/resolv.conf
  85 fcopy -iM /etc/network/interfaces /etc/networks
  86
  87 exit $error