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

. common_linux.sh

debug set -x

FQDN="${INSTANCE_NAME}"

SHORT_NAME="$(echo ${INSTANCE_NAME} | cut -d . -f 1)"

STATIC=""

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 [ -f "${NETWORKS_DIR}/instances/${FQDN}" ] ; then

    STATIC="yes"

    source ${NETWORKS_DIR}/instances/${FQDN}

    if [ -f "${NETWORKS_DIR}/subnets/${SUBNET}" ] ; then

        source ${NETWORKS_DIR}/subnets/${SUBNET}

    else

        echo "No subnet file for subnet ${SUBNET}!"

        exit 1

    fi

fi

# Functions

debian_setup() {

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

        log_error "Missing target network directory"

        exit 1

    fi

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

        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

    else

        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 static

    address ${ADDRESS}

    netmask ${NETMASK}

    gateway ${GATEWAY}

EOF

    fi

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

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

    fi

}

redhat_setup() {

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

        log_error "Missing target network directory"

        exit 1

    fi

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

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

DEVICE=eth0

BOOTPROTO=dhcp

ONBOOT=yes

EOF

    else

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

DEVICE=eth0

BOOTPROTO=static

IPADDR=${ADDRESS}

NETMASK=${NETMASK}

ONBOOT=yes

EOF

    fi

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

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

NETWORKING=yes

HOSTNAME=${FQDN}

GATEWAY=${GATEWAY}

EOF

    else

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

NETWORKING=yes

GATEWAY=${GATEWAY}

EOF

    fi

}

gentoo_setup() {

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

        log_error "Missing target network file"

        exit 1

    fi

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

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

config_eth0=( "dhcp" )

EOF

    else

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

config_eth0=( "${ADDRESS} netmask ${NETMASK}" )

routes_eth0=( "default gw ${GATEWAY}" )

EOF

    fi

    chroot ${TARGET} ln -sf /etc/init.d/net.lo /etc/init.d/net.eth0

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

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

        # baselayout-2.x

        if [ -d "${TARGET}/usr/share/openrc/" ] ; then

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

hostname="${SHORT_NAME}"

EOF

        else

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

HOSTNAME="${SHORT_NAME}"

EOF

        fi

    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'

STARTMODE='auto'

NAME='Ethernet Card 0'

EOF

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

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

    fi

}

# Main

get_os_type $TARGET

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

    ${OS_TYPE}_setup

else

    log_error "Unsupported OS_TYPE"

fi

exit 0