blob: 16a3cb6ced111efa7b2cf57e50a125c9331b9546 [file] [log] [blame] [raw]
#!/sbin/runscript
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/www/viewcvs.gentoo.org/raw_cvs/gentoo-x86/sys-cluster/vzctl/files/vz-3.0.10.initd,v 1.2 2006/07/09 10:29:24 phreak Exp $
depend() {
after net vzeventd
}
check_config() {
# if we don't want openvz running, say so
[ "${VIRTUOZZO}" = "yes" ] || return 1
# set default values
: ${VZCTL:=@SBINDIR@/vzctl}
: ${VZQUOTA:=@SBINDIR@/vzquota}
: ${VZVEINFO:=/proc/vz/veinfo}
: ${VESTAT:=/proc/vz/vestat}
: ${VPSCONFDIR:=@VPSCONFDIR@}
: ${VZREBOOTDIR:=@VZREBOOTDIR@}
: ${VZDEV:=venet0}
: ${VZCONF:=@PKGCONFDIR@/vz.conf}
: ${VE_STOP_MODE:=suspend}
if [ "${MODULES_DISABLED}" != "yes" ]; then
: ${IPTABLES_MODULES:="${IPTABLES}"}
IPTABLES_MODULES="ip_tables ${IPTABLES_MODULES} xt_tcpudp"
: ${PRELOAD_MODULES:="af_packet"}
: ${MODULES:="vzmon vzdquota vzdev"}
: ${MIGRATE_MODULES:="vzcpt vzrst"}
: ${NET_MODULES:="vznetdev vznet vzethdev"}
: ${PLOOP_MODULES:="ploop pfmt_ploop1 pfmt_raw pio_direct pio_nfs pio_kaio"}
: ${MISC_MODULES:="vziolimit"}
# check if you should load vzwdog module
[ "${VZWDOG}" = "yes" ] && MODULES="${MODULES} vzwdog"
fi
# we need a working vzctl
if [ ! -x "${VZCTL}" ]; then
eerror "vzctl missing (${VZCTL})"
return 1
fi
if [ -z "${VE0CPUUNITS}" ]; then
ewarn "VE0CPUUNITS is not set in /etc/conf.d/vz; using default value of 1000"
VE0CPUUNITS=1000
fi
return 0
}
mount_cgroups()
{
local g
for g in beancounter container fairsched ; do
if [ -d /proc/vz/$g ]; then
mount -t cgroup $g /proc/vz/$g -o name=$g 2>/dev/null
fi
done
}
unmount_cgroups()
{
local g
for g in beancounter container fairsched ; do
umount /proc/vz/$g 2>/dev/null
done
}
setup_ve0() {
local msg ve0conf="${VPSCONFDIR}/0.conf"
mount_cgroups
if ! msg=$(${VZCTL} set 0 --cpuunits ${VE0CPUUNITS} 2>&1); then
ewarn "vzctl set 0 --cpuunits ${VE0CPUUNITS} failed: ${msg}"
fi
test -f ${ve0conf} || return
grep -Eq '^ONBOOT=yes\|^ONBOOT=\"yes\"' ${ve0conf} || return
ebegin "Configuring hardware node UB resources"
msg=$(${VZCTL} set 0 --reset_ub 2>&1)
eend $? ${msg}
}
start_net() {
local mod
# load necessary modules
for mod in ${NET_MODULES}; do
modprobe ${mod} 2>/dev/null
done
if [ ! -f ${VZVEINFO} ]; then
return 0
fi
# we don't operate on a running interface
if ip addr list | grep -q "venet0:.*UP" 2>/dev/null; then
return 0
fi
# configure the device
ebegin "Bringing up interface ${VZDEV}"
ip link set ${VZDEV} up
eend $?
ip addr add 0.0.0.0/0 dev ${VZDEV}
ebegin "Configuring interface ${VZDEV}"
sysctl -q -w net.ipv4.conf.${VZDEV}.send_redirects=0
eend $?
if [ "x$(sysctl -n -e net.ipv4.ip_forward)" != "x1" ]; then
ewarn "It looks like you have ip forwarding disabled. To make networking"
ewarn "available for containers, please, run sysctl -w net.ipv4.ip_forward=1"
fi
}
stop_net() {
local mod
if ip addr list | grep -q "venet0:.*UP" 2>/dev/null; then
ebegin "Bringing down interface ${VZDEV}"
ip link set ${VZDEV} down 2>/dev/null
eend $?
fi
# remove all modules we probably loaded on start_net
for mod in ${NET_MODULES}; do
modprobe -r ${mod} > /dev/null 2>&1
done
}
start_ve() {
local veid velist msg iter=0 pid pids need_restart=""
# CTs that were running before a reboot
velist=$(ls $VZREBOOTDIR)
rm -f $VZREBOOTDIR/*
# ... and not have ONBOOT=no
test -n "$velist" && velist=$(vzlist -aH -octid,onboot $velist |
awk '$2 != "no" {print $1}')
# ... plus ones with ONBOOT=yes
velist=$(echo "$velist"; vzlist -aH -octid,onboot |
awk '$2 == "yes" {print $1}')
# Then sort by bootorder
test -n "$velist" && velist=$(vzlist -aH -octid -s-bootorder $velist)
sysctl -q -w net.ipv4.route.src_check=0
for veid in ${velist}; do
if [ "${VZFASTBOOT}" = "yes" -a "${DISK_QUOTA}" = "yes" ]; then
${VZQUOTA} stat ${veid} >/dev/null 2>&1
if [ $? -eq 6 ]; then
if ${VZQUOTA} show ${veid} 2>&1 | grep "vzquota : (warning) Quota is running" >/dev/null 2>&1; then
${VZQUOTA} on ${veid} --nocheck >/dev/null 2>&1
need_restart="${need_restart} ${veid}"
fi
fi
fi
${VZCTL} start ${veid} --skip-fsck 2>&1 &
pid=$!
eval VE_${pid}=${veid}
pids="${pids} $pid"
let iter++
if [ ${iter} -ge ${VE_PARALLEL} ]; then
for pid in ${pids}; do
veid=`eval echo \\$VE_${pid}`
unset VE_${pid}
ebegin "Starting CT $veid"
wait ${pid}
eend $?
done
pids=
iter=0
fi
done
for pid in ${pids}; do
veid=`eval echo \\$VE_${pid}`
unset VE_${pid}
ebegin "Starting CT $veid"
wait ${pid}
eend $?
done
for veid in ${need_restart}; do
ebegin "Stopping CT ${veid}"
msg=$(${VZCTL} stop ${veid})
eend $? "${msg}"
ebegin "Starting CT ${veid}"
msg=$($VZCTL start ${veid} 2>&1)
eend $? "${msg}"
done
# we're ok even if some CTs failed to start
return 0
}
get_parallel()
{
[ -n "${VE_PARALLEL}" -a "${VE_PARALLEL}" != "0" ] && return
VE_PARALLEL=`awk '
BEGIN { num=0; }
$1 == "processor" { num++; }
END { print num * 4; }' /proc/cpuinfo`
}
stop_ve() {
local veid velist i iter pid pids stage stages msg
if [ ! -f ${VESTAT} ]; then
return
fi
# Pre-stop stage
rm -f $VZREBOOTDIR/*
velist=$(vzlist -1 2>/dev/null)
for veid in $velist; do
# Equalize cpuunits for all CTs
$VZCTL set $veid --cpuunits 2000 >/dev/null 2>&1
# Save to vzreboot list
touch $VZREBOOTDIR/$veid
done
get_parallel
stages="stop"
[ "$VE_STOP_MODE" = "suspend" ] && stages="suspend stop"
for stage in $stages; do
case $stage in
suspend)
msg='Suspending CT'
;;
stop)
msg='Shutting down CT'
;;
esac
for ((i = 0; i <= 2; i++)); do
iter=0
pids=
velist=$(vzlist -H -o ctid -sbootorder 2>/dev/null)
for veid in ${velist}; do
if [ "$stage" = "stop" ]; then
# Unset limits for CT to stop fast
$VZCTL set $veid --cpulimit 0 --iolimit 0 --iopslimit 0 >/dev/null 2>&1
fi
${VZCTL} --skiplock $stage ${veid} >/dev/null 2>&1 &
pid=$!
eval VE_${pid}=${veid}
pids="${pids} $pid"
let iter++
if [ ${iter} -ge ${VE_PARALLEL} ]; then
for pid in ${pids}; do
veid=`eval echo \\$VE_${pid}`
unset VE_${pid}
ebegin "$msg $veid"
wait ${pid}
eend $?
done
pids=
iter=0
fi
done
for pid in ${pids}; do
veid=`eval echo \\$VE_${pid}`
unset VE_${pid}
ebegin "$msg $veid"
wait ${pid}
eend $?
done
done
done
}
unmount_ve() {
local iter=0
local fail=1
local m mounts msg quota
while [ ${iter} -lt 5 -a ${fail} -ne 0 ]; do
fail=0
mounts=$(awk '{if ($3=="simfs") print $2}' /proc/mounts)
for m in ${mounts}; do
ebegin "Unmounting CT area ${m}"
msg=$(umount ${m} 2>&1)
r=$?
eend $r "${msg}"
if [ $r -ne 0 ]; then
let fail++
fuser -k -m ${m} > /dev/null 2>&1
fi
done
let iter++
done
# turn quota off
quota=$(awk -F: '/^[0-9]+:/{print $1}' /proc/vz/vzquota 2>/dev/null)
for m in ${quota}; do
ebegin "Turning quota off for CT ${m}"
msg=$(vzquota off ${m} 2>&1)
eend $? "${msg}"
done
}
start() {
check_config || return
local mod rc
ebegin "Loading OpenVZ modules"
for mod in ${IPTABLES_MODULES}; do
modprobe ${mod} >/dev/null 2>&1
done
for mod in ${PRELOAD_MODULES}; do
modprobe -r ${mod} >/dev/null 2>&1
modprobe ${mod} >/dev/null 2>&1
done
for mod in ${MODULES}; do
modprobe ${mod} >/dev/null 2>&1
rc=$?
if [ ${rc} -ne 0 ]; then
eend ${rc} "failed to load module ${mod}"
return ${rc}
fi
done
for mod in ${MIGRATE_MODULES} ${PLOOP_MODULES} ${MISC_MODULES}; do
modprobe ${mod} >/dev/null 2>&1
done
eend
if [ ! -e /dev/vzctl ]; then
eerror "Missing device node /dev/vzctl"
einfo
einfo "Please create the vzctl device node using the following command:"
einfo " /bin/mknod /dev/vzctl c 126 0"
einfo
return 1
fi
if [ -f /proc/vz/oom_score_adj ]; then
ebegin "Applying OOM adjustments"
cat /etc/vz/oom-groups.conf > /proc/vz/oom_score_adj
eend $?
fi
start_net
setup_ve0
start_ve
# Try to run vzstats to submit new kernel info
vzstats >/dev/null 2>&1
}
stop() {
check_config || return
# Avoid stop action inside a CT, check we are in CT0
if test -r /proc/user_beancounters; then
if ! grep -Fq '^[[:space:]]*0:[[:space:]]' \
/proc/user_beancounters; then
eerror "Looks like we are inside a container!"
return 1
fi
fi
local mod
stop_ve
unmount_ve
unmount_cgroups
stop_net
for mod in ${MIGRATE_MODULES} ${PLOOP_MODULES} ${MISC_MODULES}; do
modprobe -r ${mod} > /dev/null 2>&1
done
for mod in ${MODULES}; do
modprobe -r ${mod} > /dev/null 2>&1
done
for mod in ${PRELOAD_MODULES}; do
modprobe -r ${mod} > /dev/null 2>&1
done
# Even if some modules failed to unload (say they were not loaded)
# we return 0 for the service to be marked as stopped.
return 0
}