Synnefo » Ganeti Instance Image

#!/bin/bash

# Copyright (C) 2010 Oregon State University

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

#

# This is an example script that configures your network settings after

# installation. By default it sets it up to use dhcp.

set -e

. common.sh

if [ "${IMAGE_DEBUG} " = 1 ] ; then

    set -x

fi

DIG="$(which dig)"

OS_TYPE=""

FQDN=""

# discover fqdn name using dig

if [ -n "$NIC_0_IP" -a -n "${DIG}" ] ; then

    FQDN="$(${DIG} -x ${NIC_0_IP} +short | sed -e 's/\.$//')"

fi

if [ -z "${TARGET}" -o ! -d "${TARGET}" ] ; then

    log_error "Missing target directory"

    exit 1

fi

if [ -z "${NIC_COUNT}" ] ; then

    log_error "Missing NIC_COUNT"

    exit 1

fi

if [ -e ${TARGET}/etc/redhat-release ] ; then

    OS_TYPE="redhat"

elif [ -e ${TARGET}/etc/debian_version ] ; then

    OS_TYPE="debian"

elif [ -e ${TARGET}/etc/gentoo-release ] ; then

    OS_TYPE="gentoo"

elif [ -e ${TARGET}/etc/SuSE-release ] ; then

    OS_TYPE="suse"

fi

debian_setup() {

    if [ ! -d "${TARGET}/etc/network" ] ; then

        log_error "Missing target network directory"

        exit 1

    fi

    cat > ${TARGET}/etc/network/interfaces << EOF

# This file describes the network interfaces available on your system

# and how to activate them. For more information, see interfaces(5).

auto lo

iface lo inet loopback

auto eth0

iface eth0 inet dhcp

EOF

    if [ -n "${FQDN}" ] ; then

        echo "${FQDN}" > ${TARGET}/etc/hostname

    fi

}

redhat_setup() {

    if [ ! -d "${TARGET}/etc/sysconfig/network-scripts" ] ; then

        log_error "Missing target network directory"

        exit 1

    fi

    cat > ${TARGET}/etc/sysconfig/network-scripts/ifcfg-eth0 << EOF

DEVICE=eth0

BOOTPROTO=dhcp

HWADDR=${NIC_0_MAC^^[a-z]}

ONBOOT=yes

EOF

    if [ -n "${FQDN}" ] ; then

        cat > ${TARGET}/etc/sysconfig/network << EOF

NETWORKING=yes

HOSTNAME=${FQDN}

EOF

    else

        cat > ${TARGET}/etc/sysconfig/network << EOF

NETWORKING=yes

EOF

    fi

}

gentoo_setup() {

    if [ ! -f "${TARGET}/etc/conf.d/net" ] ; then

        log_error "Missing target network file"

        exit 1

    fi

    cat > ${TARGET}/etc/conf.d/net << EOF

config_eth0=( "dhcp" )

EOF

    chroot ${TARGET} rc-update add net.eth0 default

    if [ -n "${FQDN}" ] ; then

        cat > ${TARGET}/etc/conf.d/hostname << EOF

HOSTNAME="${FQDN}"

EOF

    fi

}

suse_setup() {

    if [ ! -d ${TARGET}/etc/sysconfig/network ] ; then

        log_error "Missing target network directory"

        exit 1

    fi

    cat > ${TARGET}/etc/sysconfig/network/ifcfg-eth0 << EOF

BOOTPROTO='dhcp4'

LLADDR='${NIC_0_MAC^^[a-z]}'

STARTMODE='auto'

NAME='Ethernet Card 0'

EOF

    if [ -n "${FQDN}" ] ; then

        echo "${FQDN}" > ${TARGET}/etc/HOSTNAME

    fi

}

if [ "${NIC_COUNT}" -gt 0 ] ; then

    case "${OS_TYPE}" in

        debian)

            debian_setup

            ;;

        redhat)

            redhat_setup

            ;;

        gentoo)

            gentoo_setup

            ;;

        suse)

            suse_setup

            ;;

        *)

            log_error "Unsupported OS_TYPE"

            exit 1

            ;;

    esac

fi

exit 0