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Commit b164a17f by Serge Hallyn
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remove lxc-clone-sh

Signed-off-by: 's avatarSerge Hallyn <serge.hallyn@ubuntu.com>
parent ec471210
Showing with 0 additions and 327 deletions
.gitignore
......@@ -42,7 +42,6 @@ src/lxc/lxc-cgroup
src/lxc/lxc-checkconfig
src/lxc/lxc-checkpoint
src/lxc/lxc-clone
src/lxc/lxc-clone-sh
src/lxc/lxc-console
src/lxc/lxc-config
src/lxc/lxc-create
......
configure.ac
......@@ -382,7 +382,6 @@ AC_CONFIG_FILES([
src/lxc/lxc-checkconfig
src/lxc/lxc-version
src/lxc/lxc-create
src/lxc/lxc-clone-sh
src/lxc/lxc-shutdown
src/lxc/lxc-start-ephemeral
src/lxc/lxc-destroy
......
src/lxc/Makefile.am
......@@ -124,7 +124,6 @@ bin_SCRIPTS = \
lxc-checkconfig \
lxc-version \
lxc-create \
lxc-clone-sh \
lxc-shutdown \
lxc-destroy
......
src/lxc/lxc-clone-sh.in deleted 100755 → 0
#!/bin/sh
#
# lxc: linux Container library
# Authors:
# Serge Hallyn <serge.hallyn@ubuntu.com>
# Daniel Lezcano <daniel.lezcano@free.fr>
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# This library 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
set -e
usage() {
echo "usage: $(basename $0) -o ORIG_NAME -n NEW_NAME [-s] [-h] [-L FS_SIZE]" >&2
echo " [-v VG_NAME] [-p LV_PREFIX] [-t FS_TYPE]" >&2
}
help() {
usage
echo >&2
echo "Clone an existing container on the system." >&2
echo >&2
echo "Options:" >&2
echo " -o ORIG_NAME specify the name of the original container" >&2
echo " -n NEW_NAME specify the name of the new container" >&2
echo " -s make the new rootfs a snapshot of the original" >&2
echo " -L FS_SIZE specify the new filesystem size (default: same as original)" >&2
echo " -v VG_NAME specify the new LVM volume group name (default: lxc)" >&2
echo " -p LV_PREFIX add a prefix to new LVM logical volume names" >&2
echo " -t FS_TYPE specify the new filesystem type (default: ext3;" >&2
echo " only works for non-snapshot LVM)" >&2
}
usage_err() {
[ -n "$1" ] && echo "$1" >&2
usage
exit 1
}
optarg_check() {
[ -n "$2" ] || usage_err "option $1 requires an argument"
}
. @DATADIR@/lxc/lxc.functions
snapshot=no
lxc_size=_unset
lxc_vg=lxc
lxc_lv_prefix=""
fstype=ext3
while [ $# -gt 0 ]; do
opt="$1"
shift
case "$opt" in
-h|--help)
help
exit 1
;;
-s|--snapshot)
snapshot=yes
snapshot_opt="-s"
;;
-o|--orig)
optarg_check $opt $1
lxc_orig=$1
shift
;;
-L|--fssize)
optarg_check $opt $1
lxc_size=$1
shift
;;
-t|--fstype)
optarg_check $opt $1
fstype=$1
shift
;;
-v|--vgname)
optarg_check $opt $1
lxc_vg=$1
shift
;;
-n|--name)
optarg_check $opt $1
lxc_new=$1
shift
;;
-p|--lvprefix)
optarg_check $opt $1
lxc_lv_prefix=$1
shift
;;
--)
break
;;
-?)
usage_err "Unknown option: '$opt'"
;;
-*)
# split opts -abc into -a -b -c
set -- $(echo "${opt#-}" | sed 's/\(.\)/ -\1/g') "$@"
;;
*)
usage_err
;;
esac
done
if [ -z "$lxc_path" ]; then
echo "$(basename $0): no configuration path defined" >&2
exit 1
fi
if [ ! -r $lxc_path ]; then
echo "$(basename $0): configuration path '$lxc_path' not found" >&2
exit 1
fi
if [ -z "$lxc_orig" ]; then
echo "$(basename $0): no original container name specified" >&2
usage
exit 1
fi
if [ -z "$lxc_new" ]; then
echo "$(basename $0): no new container name specified" >&2
usage
exit 1
fi
if [ "$(id -u)" != "0" ]; then
echo "$(basename $0): must be run as root" >&2
exit 1
fi
if [ ! -d "$lxc_path/$lxc_orig" ]; then
echo "$(basename $0): '$lxc_orig' does not exist" >&2
exit 1
fi
if [ -d "$lxc_path/$lxc_new" ]; then
echo "$(basename $0): '$lxc_new' already exists" >&2
exit 1
fi
mounted=0
frozen=0
oldroot=`grep lxc.rootfs $lxc_path/$lxc_orig/config | awk -F= '{ print $2 '}`
cleanup() {
if [ -b $oldroot ]; then
if [ $mounted -eq 1 ]; then
umount $rootfs || true
fi
lvremove -f $rootdev || true
fi
${bindir}/lxc-destroy -n $lxc_new || true
if [ $frozen -eq 1 ]; then
lxc-unfreeze -n $lxc_orig
fi
echo "$(basename $0): aborted" >&2
exit 1
}
trap cleanup HUP INT TERM
mkdir -p $lxc_path/$lxc_new
hostname=$lxc_new
echo "Tweaking configuration"
cp $lxc_path/$lxc_orig/config $lxc_path/$lxc_new/config
sed -i '/lxc.utsname/d' $lxc_path/$lxc_new/config
echo "lxc.utsname = $hostname" >> $lxc_path/$lxc_new/config
grep "lxc.mount[ \t]" $lxc_path/$lxc_new/config >/dev/null 2>&1 && { sed -i '/lxc.mount[ \t]/d' $lxc_path/$lxc_new/config; echo "lxc.mount = $lxc_path/$lxc_new/fstab" >> $lxc_path/$lxc_new/config; }
if [ -e $lxc_path/$lxc_orig/fstab ];then
cp $lxc_path/$lxc_orig/fstab $lxc_path/$lxc_new/fstab
sed -i "s@$lxc_path/$lxc_orig@$lxc_path/$lxc_new@" $lxc_path/$lxc_new/fstab
fi
echo "Copying rootfs..."
oldroot=`grep lxc.rootfs $lxc_path/$lxc_orig/config | awk -F'[= \t]+' '{ print $2 }'`
rootfs=`echo $oldroot |sed "s/$lxc_orig/$lxc_new/"`
container_running=True
lxc-info -n $lxc_orig --state-is RUNNING || container_running=False
sed -i '/lxc.rootfs/d' $lxc_path/$lxc_new/config
if [ -b $oldroot ]; then
which vgscan >/dev/null 2>&1 || { echo "$(basename $0): lvm is not installed" >&2; false; }
lvdisplay $oldroot > /dev/null 2>&1 || { echo "$(basename $0): non-lvm blockdev cloning is not supported" >&2; false; }
lvm=TRUE
# ok, create a snapshot of the lvm device
if [ $container_running = "True" ]; then
lxc-freeze -n $lxc_orig
frozen=1
fi
if [ $lxc_size = "_unset" ]; then
lxc_size=`lvdisplay $oldroot | grep Size | awk '{ print $3 $4 }'`
fi
newlv="${lxc_lv_prefix}${lxc_new}_snapshot"
lvcreate -s -L $lxc_size -n $newlv $oldroot
which xfs_admin > /dev/null 2>&1 && {
# change filesystem UUID if it is an xfs filesystem
xfs_admin -u /dev/$lxc_vg/$newlv && xfs_admin -U generate /dev/$lxc_vg/$newlv
}
if [ $container_running = "True" ]; then
lxc-unfreeze -n $lxc_orig
frozen=0
fi
if [ $snapshot = "no" ]; then
#mount snapshot
mkdir -p ${rootfs}_snapshot
mount /dev/$lxc_vg/${lxc_lv_prefix}${lxc_new}_snapshot ${rootfs}_snapshot || { echo "$(basename $0): failed to mount new rootfs_snapshot" >&2; false; }
#create a new lv
lvcreate -L $lxc_size $lxc_vg -n ${lxc_lv_prefix}$lxc_new
echo "lxc.rootfs = /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new" >> $lxc_path/$lxc_new/config
# and mount it so we can tweak it
mkdir -p $rootfs
mkfs -t $fstype /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new
mount /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new $rootfs || { echo "$(basename $0): failed to mount new rootfs" >&2; false; }
mounted=1
rsync -Hax ${rootfs}_snapshot/ ${rootfs}/ || { echo "$(basename $0): copying data to new lv failed" >&2; false; }
umount ${rootfs}_snapshot
rmdir ${rootfs}_snapshot
lvremove -f $lxc_vg/${lxc_lv_prefix}${lxc_new}_snapshot
else
lvrename $lxc_vg/${lxc_lv_prefix}${lxc_new}_snapshot $lxc_vg/${lxc_lv_prefix}$lxc_new
echo "lxc.rootfs = /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new" >> $lxc_path/$lxc_new/config
# and mount it so we can tweak it
mkdir -p $rootfs
mount /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new $rootfs || { echo "$(basename $0): failed to mount new rootfs" >&2; false; }
mounted=1
fi
elif which btrfs >/dev/null 2>&1 && btrfs subvolume list $oldroot >/dev/null 2>&1; then
# if oldroot is a btrfs subvolume, assume they want a snapshot
btrfs subvolume snapshot "$oldroot" "$rootfs" 2>&1 || { echo "$(basename $0): btrfs snapshot failed" >&2; false; }
echo "lxc.rootfs = $rootfs" >> "$lxc_path/$lxc_new/config"
elif [ -d $lxc_path/$lxc_orig/delta0 ]; then # this is a quasi-ephemeral container
if [ $container_running = "True" ]; then
echo "$(basename $0): container $lxc_orig is running." >&2
cleanup
fi
rsync -Hax $lxc_path/$lxc_orig/delta0 $lxc_path/$lxc_new/
touch $lxc_path/$lxc_new/configured
cp -f $lxc_path/$lxc_orig/pre-mount $lxc_path/$lxc_new/
sed -i "s@$lxc_path/$lxc_orig@$lxc_path/$lxc_new@g" $lxc_path/$lxc_new/config
sed -i "s@$lxc_path/$lxc_orig@$lxc_path/$lxc_new@g" $lxc_path/$lxc_new/pre-mount
sed -i "s@LXC_NAME=\"$lxc_orig@LXC_NAME=\"$lxc_new@" $lxc_path/$lxc_new/pre-mount
# lxc-start-ephemeral will have updated /etc/hostname and such under the
# delta0, so just mounting the delta should suffice.
mkdir -p $rootfs
mount --bind $lxc_path/$lxc_new/delta0 $rootfs
mounted=1
echo "lxc.rootfs = $rootfs" >> "$lxc_path/$lxc_new/config"
else
if [ $snapshot = "yes" ]; then
echo "$(basename $0): cannot snapshot a directory" >&2
cleanup
fi
if [ $container_running = "True" ]; then
lxc-freeze -n $lxc_orig
frozen=1
fi
mkdir -p $rootfs/
rsync -Hax $oldroot/ $rootfs/
echo "lxc.rootfs = $rootfs" >> $lxc_path/$lxc_new/config
if [ $container_running = "True" ]; then
lxc-unfreeze -n $lxc_orig
frozen=0
fi
fi
echo "Updating rootfs..."
# so you can 'ssh $hostname.' or 'ssh $hostname.local'
if [ -f $rootfs/etc/dhcp/dhclient.conf ] && ! grep -q "^send host-name.*hostname" $rootfs/etc/dhcp/dhclient.conf; then
sed -i "s/send host-name.*$/send host-name \"$hostname\";/" $rootfs/etc/dhcp/dhclient.conf
fi
c=$lxc_path/$lxc_new/config
# change hwaddrs
mv ${c} ${c}.old
(
while read line; do
if echo $line | grep -q -w '^lxc.network.hwaddr'; then
echo "lxc.network.hwaddr= 00:16:3e:$(openssl rand -hex 3| sed 's/\(..\)/\1:/g; s/.$//')"
else
echo "$line"
fi
done
) < ${c}.old > ${c}
rm -f ${c}.old
# set the hostname
cat <<EOF > $rootfs/etc/hostname
$hostname
EOF
# set minimal hosts
cat <<EOF > $rootfs/etc/hosts
127.0.0.1 localhost $hostname
EOF
# if this was a block device, then umount it now
if [ $mounted -eq 1 ]; then
umount $rootfs
fi
echo "'$lxc_new' created"
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