Synnefo » snf-image

# Copyright (C) 2013 GRNET S.A.

#

# 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.

get_img_dev() {

	echo /dev/xvdb

}

launch_helper() {

    local name helperid rc blockdev floppy

    blockdev="$1"

    floppy="$2"

    name="snf-image-helper-$instance-$RANDOM"

    report_info "Starting customization VM..."

    echo "$($DATE +%Y:%m:%d-%H:%M:%S.%N) VM START" >&2

    xm create /dev/null \

      kernel="$HELPER_DIR/kernel" ramdisk="$HELPER_DIR/initrd" \

      root="/dev/xvda1" memory="$HELPER_MEMORY" boot="c" vcpus=1 name="$name" \

      extra="console=hvc0 hypervisor=$HYPERVISOR snf_image_activate_helper \

	  ipv6.disable=1 rules_dev=/dev/xvdc ro boot=local helper_ip=10.0.0.1 \

          monitor_port=48888 init=/usr/bin/snf-image-helper" \

      disk="file:$HELPER_DIR/image,xvda,r" disk="phy:$blockdev,xvdb,w" \

      disk="file:$floppy,xvdc,r" vif="script=${XEN_SCRIPTS_DIR}/vif-snf-image"

    add_cleanup suppress_errors xm destroy "$name"

    if ! xenstore-exists snf-image-helper; then

        xenstore-write snf-image-helper ""

	#add_cleanup xenstore-rm snf-image-helper

    fi

    helperid=$(xm domid "$name")

    xenstore-write snf-image-helper/${helperid} ""

    add_cleanup xenstore-rm snf-image-helper/${helperid}

    xenstore-chmod snf-image-helper/${helperid} r0 w${helperid}

    filter='udp and dst port 48888 and dst host 10.0.0.255 and src host 10.0.0.1'

    $TIMEOUT -k $HELPER_HARD_TIMEOUT $HELPER_SOFT_TIMEOUT \

      ./helper-monitor.py -i "vif${helperid}.0" -f "$filter" ${MONITOR_FD} &

    monitor_pid=$!

    set +e

    $TIMEOUT -k $HELPER_HARD_TIMEOUT $HELPER_SOFT_TIMEOUT \

      socat EXEC:"xm console $name",pty STDOUT | sed -u 's|^|HELPER: |g'

    rc=$?

    set -e

    echo "$($DATE +%Y:%m:%d-%H:%M:%S.%N) VM STOP" >&2

    check_helper_rc "$rc"

    set +e

    wait "$monitor_pid"

    monitor_rc=$?

    set -e

    if [ $monitor_rc -ne 0 ]; then

       log_error "Helper VM monitoring failed"

       report_error "Helper VM monitoring failed"

       exit 1

    fi

    report_info "Checking customization status..."

    result=$(xenstore-read snf-image-helper/$helperid)

    report_info "Customization status is: $result"

    check_helper_result "$result"

}

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