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