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|
#!/sbin/runscript
# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
CONTAINER=${SVCNAME#*.}
LXC_PATH=`lxc-config lxc.lxcpath`
lxc_get_configfile() {
if [ -f "${LXC_PATH}/${CONTAINER}.conf" ]; then
echo "${LXC_PATH}/${CONTAINER}.conf"
elif [ -f "${LXC_PATH}/${CONTAINER}/config" ]; then
echo "${LXC_PATH}/${CONTAINER}/config"
else
eerror "Unable to find a suitable configuration file."
eerror "If you set up the container in a non-standard"
eerror "location, please set the CONFIGFILE variable."
return 1
fi
}
[ $CONTAINER != $SVCNAME ] && CONFIGFILE=${CONFIGFILE:-$(lxc_get_configfile)}
lxc_get_var() {
awk 'BEGIN { FS="[ \t]*=[ \t]*" } $1 == "'$1'" { print $2; exit }' ${CONFIGFILE}
}
lxc_get_net_link_type() {
awk 'BEGIN { FS="[ \t]*=[ \t]*"; _link=""; _type="" }
$1 == "lxc.network.type" {_type=$2;}
$1 == "lxc.network.link" {_link=$2;}
{if(_link != "" && _type != ""){
printf("%s:%s\n", _link, _type );
_link=""; _type="";
}; }' <${CONFIGFILE}
}
checkconfig() {
if [ ${CONTAINER} = ${SVCNAME} ]; then
eerror "You have to create an init script for each container:"
eerror " ln -s lxc /etc/init.d/lxc.container"
return 1
fi
# no need to output anything, the function takes care of that.
[ -z "${CONFIGFILE}" ] && return 1
utsname=$(lxc_get_var lxc.utsname)
if [ ${CONTAINER} != ${utsname} ]; then
eerror "You should use the same name for the service and the"
eerror "container. Right now the container is called ${utsname}"
return 1
fi
}
depend() {
# be quiet, since we have to run depend() also for the
# non-muxed init script, unfortunately.
checkconfig 2>/dev/null || return 0
config ${CONFIGFILE}
need localmount
local _x _if
for _x in $(lxc_get_net_link_type); do
_if=${_x%:*}
case "${_x##*:}" in
# when the network type is set to phys, we can make use of a
# network service (for instance to set it up before we disable
# the net_admin capability), but we might also not set it up
# at all on the host and leave the net_admin capable service
# to take care of it.
phys) use net.${_if} ;;
*) need net.${_if} ;;
esac
done
}
start() {
checkconfig || return 1
rm /var/log/lxc/${CONTAINER}.log
rootpath=$(lxc_get_var lxc.rootfs)
# Check the format of our init and the chroot's init, to see
# if we have to use linux32 or linux64; always use setarch
# when required, as that makes it easier to deal with
# x32-based containers.
case $(scanelf -BF '%a#f' ${rootpath}/sbin/init) in
EM_X86_64) setarch=linux64;;
EM_386) setarch=linux32;;
esac
ebegin "Starting ${CONTAINER}"
env -i ${setarch} $(type -p lxc-start) -l WARN -n ${CONTAINER} -f ${CONFIGFILE} -d -o /var/log/lxc/${CONTAINER}.log
sleep 0.5
# lxc-start -d will _always_ report a correct startup, even if it
# failed, so rather than trust that, check that the cgroup exists.
[ -d /sys/fs/cgroup/cpuset/lxc/${CONTAINER} ]
eend $?
}
stop() {
checkconfig || return 1
if ! [ -d /sys/fs/cgroup/cpuset/lxc/${CONTAINER} ]; then
ewarn "${CONTAINER} doesn't seem to be started."
return 0
fi
init_pid=$(lxc-info -n ${CONTAINER} --pid | awk '{ print $2 }')
if [ -z "${init_pid}" ]; then
ewarn "${CONTAINER} doesn't seem to be running."
return 0
fi
ebegin "Shutting down system in ${CONTAINER}"
kill -PWR ${init_pid}
eend $?
TIMEOUT=${TIMEOUT:-30}
i=0
while [ -n "$(pgrep -P ${init_pid})" -a $i -lt ${TIMEOUT} ]; do
sleep 1
i=$(expr $i + 1)
done
if [ -n "${missingprocs}" ]; then
ewarn "Something failed to properly shut down in ${CONTAINER}"
fi
ebegin "Stopping ${CONTAINER}"
lxc-stop -n ${CONTAINER}
eend $?
}
|
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