new stack trace, linode fixes, minor improvements
[automated-distro-installer] / fai / config / scripts / DEBIAN / 30-interface
index 3388dcf1d241bcc2f01df100161d6e0e3ff154d7..db84395f9d404afb022c378d54d4e4d6d84515b2 100755 (executable)
 # modified from upstream fai example
 error=0; trap 'error=$(($?>$error?$?:$error))' ERR # save maximum error code
 
-if ifclass DHCPC && [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]
-then
-    if ifclass VM; then
+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)
+
+      if ifclass VM || ifclass LINODE; then
+        # note, this condition would apply to the elif below too,
+        # but I don't specify a static ip in fai, so not bothering
         cat > $target/etc/network/interfaces <<-EOF
-        # installed by FAI
-        auto lo $NIC1
-        iface lo inet loopback
-        iface $NIC1 inet dhcp
+# generated by FAI
+auto lo $NIC1
+iface lo inet loopback
+iface $NIC1 inet dhcp
+iface $NIC1 inet6 auto
 EOF
-    else
-        cat > $target/etc/network/interfaces <<-EOF
-        # generated by FAI
-        auto lo br0
-        iface lo inet loopback
-        iface $NIC1 inet manual
-        # make a bridge by default so we can have bridged vms.
-        # Some example I read had stp on, but i don't need stp,
-        # and it causes a vm to fail pxe boot, presumably unless
-        # you add some delay.
-        # http://wiki.libvirt.org/page/PXE_boot_%28or_dhcp%29_on_guest_failed
-        iface br0 inet dhcp
-          bridge_ports eth0
-          bridge_stp off
-          bridge_maxwait 0
+
+      elif ifclass LINODE
+           # NIC1 is wrong, probably because the installer distro
+           # is stretch and the installed one is buster.
+           # todo: after upgrading installer to buster,
+           # try removing this condition
+        cat > $target/etc/network/interfaces <<EOF
+# generated by FAI
+auto lo $linode_if
+iface lo inet loopback
+iface $linode_if inet dhcp
+iface $linode_if inet6 auto
 EOF
-    fi
-elif [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]
-then
-    [ -n "$IPADDR" ] && cat > $target/etc/network/interfaces <<-EOF
-        # generated by FAI
-        auto lo $NIC1
-        iface lo inet loopback
-        iface $NIC1 inet static
-          address $IPADDR
-          netmask $NETMASK
-          broadcast $BROADCAST
-          gateway $GATEWAYS
-          hwaddress ether $(cat /sys/class/net/$NIC1/address)
+
+      else
+        cat > $target/etc/network/interfaces <<EOF
+# generated by FAI
+auto lo br0
+iface lo inet loopback
+iface $NIC1 inet manual
+# make a bridge by default so we can have bridged vms.
+# Some example I read had stp on, but i don't need stp,
+# and it causes a vm to fail pxe boot, presumably unless
+# you add some delay.
+# http://wiki.libvirt.org/page/PXE_boot_%28or_dhcp%29_on_guest_failed
+iface br0 inet dhcp
+  bridge_ports $NIC1
+  bridge_stp off
+  bridge_maxwait 0
+EOF
+      fi
+
+      if ifclass LINODE; then
+        mkdir -p $target/etc/initramfs-tools/conf.d
+        cat >$target/etc/initramfs-tools/conf.d/mine <<EOF
+# dhcp in initramfs doesn't work on linode. i dunno why, whatever.
+# man 5 initramfs.conf
+# /usr/share/doc/klibc-utils/README.ipconfig.gz
+# /usr/share/initramfs-tools/scripts/functions
+IP=$linode_ip::$linode_gw:255.255.255.0::$linode_if:off
 EOF
-    [ -n "$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
+
+    else
+      (
+        iface_stanza lo loopback
+        iface_stanza $NIC1 $METHOD
+      ) > $target/etc/network/interfaces
     fi
-fi
+
+    if ! ifclass DHCPC ; then
+        [ -n "$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