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Fix several nagging bugs in lxc-destroy

Browse Source 
Don't delete a running container.  If it's running, abort the delete
unless a new '-f' (force) flag is given, in which case, stop it first.

Handle the case where we can't find $rootfs in config

Fix broken detection of lvm backing store

Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
This commit is contained in:
Serge Hallyn 2012-01-23 12:59:14 -06:00 committed by Daniel Lezcano
parent d08ba6ec05
commit 76e08ff8a0
1 changed files with 27 additions and 7 deletions
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30
src/lxc/lxc-destroy.in
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@ -26,7 +26,8 @@
#
usage() {
echo "usage: $0 -n <name>"
echo "usage: $0 -n <name> [-f]"
echo " -f: if a container is running, stop it first. Default is to abort"
}
if [ "$(id -u)" != "0" ]; then
@ -34,10 +35,11 @@ if [ "$(id -u)" != "0" ]; then
exit 1
fi
shortoptions='n:'
shortoptions='n:f'
longoptions='name:'
localstatedir=@LOCALSTATEDIR@
lxc_path=@LXCPATH@
force=0
getopt=$(getopt -o $shortoptions --longoptions $longoptions -- "$@")
if [ $? != 0 ]; then
@ -54,6 +56,10 @@ while true; do
lxc_name=$1
shift
;;
-f)
force=1
shift
;;
--)
shift
break;;
@ -76,14 +82,28 @@ if [ ! -d "$lxc_path/$lxc_name" ]; then
exit 1
fi
# make sure the container isn't running
lxc-info -n $lxc_name 2>/dev/null | grep -q RUNNING
if [ $? -eq 0 ]; then
if [ $force -eq 1 ]; then
lxc-stop -n $lxc_name
else
echo "Container $lxc_name is running, aborting the deletion."
exit 1
fi
fi
# Deduce the type of rootfs
# If LVM partition, destroy it. If anything else, ignore it. We'll support
# deletion of others later.
rootdev=`grep lxc.rootfs $lxc_path/$lxc_name/config | awk -F= '{ print $2 '}`
if [ -b $rootdev -o -h $rootdev ]; then
rootdev=`grep lxc.rootfs $lxc_path/$lxc_name/config 2>/dev/null | sed -e 's/^[^/]*/\//'`
if [ ! -z "$rootdev" ]; then
if [ -b "$rootdev" -o -h "$rootdev" ]; then
lvdisplay $rootdev > /dev/null 2>&1
if [ $? -eq 0 ]; then
lvremove $rootdev
echo "removing backing store: $rootdev"
lvremove -f $rootdev
fi
fi
fi
# recursively remove the container to remove old container configuration