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remove lxc-clone-sh
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
This commit is contained in:
Serge Hallyn
parent
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commit
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1
.gitignore
vendored
1
.gitignore
vendored
@ -42,7 +42,6 @@ src/lxc/lxc-cgroup
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src/lxc/lxc-checkconfig
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src/lxc/lxc-checkpoint
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src/lxc/lxc-clone
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src/lxc/lxc-clone-sh
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src/lxc/lxc-console
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src/lxc/lxc-config
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src/lxc/lxc-create
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@ -382,7 +382,6 @@ AC_CONFIG_FILES([
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src/lxc/lxc-checkconfig
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src/lxc/lxc-version
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src/lxc/lxc-create
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src/lxc/lxc-clone-sh
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src/lxc/lxc-shutdown
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src/lxc/lxc-start-ephemeral
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src/lxc/lxc-destroy
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@ -124,7 +124,6 @@ bin_SCRIPTS = \
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lxc-checkconfig \
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lxc-version \
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lxc-create \
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lxc-clone-sh \
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lxc-shutdown \
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lxc-destroy
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@ -1,324 +0,0 @@
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#!/bin/sh
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#
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# lxc: linux Container library
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# Authors:
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# Serge Hallyn <serge.hallyn@ubuntu.com>
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# Daniel Lezcano <daniel.lezcano@free.fr>
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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set -e
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usage() {
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echo "usage: $(basename $0) -o ORIG_NAME -n NEW_NAME [-s] [-h] [-L FS_SIZE]" >&2
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echo " [-v VG_NAME] [-p LV_PREFIX] [-t FS_TYPE]" >&2
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}
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help() {
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usage
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echo >&2
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echo "Clone an existing container on the system." >&2
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echo >&2
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echo "Options:" >&2
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echo " -o ORIG_NAME specify the name of the original container" >&2
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echo " -n NEW_NAME specify the name of the new container" >&2
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echo " -s make the new rootfs a snapshot of the original" >&2
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echo " -L FS_SIZE specify the new filesystem size (default: same as original)" >&2
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echo " -v VG_NAME specify the new LVM volume group name (default: lxc)" >&2
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echo " -p LV_PREFIX add a prefix to new LVM logical volume names" >&2
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echo " -t FS_TYPE specify the new filesystem type (default: ext3;" >&2
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echo " only works for non-snapshot LVM)" >&2
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}
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usage_err() {
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[ -n "$1" ] && echo "$1" >&2
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usage
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exit 1
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}
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optarg_check() {
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[ -n "$2" ] || usage_err "option $1 requires an argument"
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}
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. @DATADIR@/lxc/lxc.functions
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snapshot=no
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lxc_size=_unset
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lxc_vg=lxc
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lxc_lv_prefix=""
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fstype=ext3
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while [ $# -gt 0 ]; do
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opt="$1"
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shift
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case "$opt" in
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-h|--help)
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help
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exit 1
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;;
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-s|--snapshot)
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snapshot=yes
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snapshot_opt="-s"
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;;
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-o|--orig)
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optarg_check $opt $1
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lxc_orig=$1
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shift
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;;
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-L|--fssize)
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optarg_check $opt $1
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lxc_size=$1
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shift
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;;
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-t|--fstype)
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optarg_check $opt $1
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fstype=$1
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shift
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;;
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-v|--vgname)
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optarg_check $opt $1
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lxc_vg=$1
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shift
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;;
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-n|--name)
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optarg_check $opt $1
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lxc_new=$1
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shift
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;;
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-p|--lvprefix)
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optarg_check $opt $1
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lxc_lv_prefix=$1
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shift
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;;
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--)
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break
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;;
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-?)
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usage_err "Unknown option: '$opt'"
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;;
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-*)
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# split opts -abc into -a -b -c
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set -- $(echo "${opt#-}" | sed 's/\(.\)/ -\1/g') "$@"
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;;
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*)
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usage_err
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;;
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esac
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done
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if [ -z "$lxc_path" ]; then
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echo "$(basename $0): no configuration path defined" >&2
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exit 1
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fi
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if [ ! -r $lxc_path ]; then
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echo "$(basename $0): configuration path '$lxc_path' not found" >&2
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exit 1
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fi
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if [ -z "$lxc_orig" ]; then
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echo "$(basename $0): no original container name specified" >&2
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usage
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exit 1
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fi
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if [ -z "$lxc_new" ]; then
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echo "$(basename $0): no new container name specified" >&2
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usage
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exit 1
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fi
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if [ "$(id -u)" != "0" ]; then
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echo "$(basename $0): must be run as root" >&2
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exit 1
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fi
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if [ ! -d "$lxc_path/$lxc_orig" ]; then
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echo "$(basename $0): '$lxc_orig' does not exist" >&2
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exit 1
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fi
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if [ -d "$lxc_path/$lxc_new" ]; then
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echo "$(basename $0): '$lxc_new' already exists" >&2
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exit 1
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fi
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mounted=0
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frozen=0
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oldroot=`grep lxc.rootfs $lxc_path/$lxc_orig/config | awk -F= '{ print $2 '}`
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cleanup() {
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if [ -b $oldroot ]; then
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if [ $mounted -eq 1 ]; then
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umount $rootfs || true
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fi
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lvremove -f $rootdev || true
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fi
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${bindir}/lxc-destroy -n $lxc_new || true
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if [ $frozen -eq 1 ]; then
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lxc-unfreeze -n $lxc_orig
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fi
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echo "$(basename $0): aborted" >&2
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exit 1
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}
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trap cleanup HUP INT TERM
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mkdir -p $lxc_path/$lxc_new
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hostname=$lxc_new
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echo "Tweaking configuration"
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cp $lxc_path/$lxc_orig/config $lxc_path/$lxc_new/config
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sed -i '/lxc.utsname/d' $lxc_path/$lxc_new/config
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echo "lxc.utsname = $hostname" >> $lxc_path/$lxc_new/config
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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; }
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if [ -e $lxc_path/$lxc_orig/fstab ];then
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cp $lxc_path/$lxc_orig/fstab $lxc_path/$lxc_new/fstab
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sed -i "s@$lxc_path/$lxc_orig@$lxc_path/$lxc_new@" $lxc_path/$lxc_new/fstab
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fi
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echo "Copying rootfs..."
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oldroot=`grep lxc.rootfs $lxc_path/$lxc_orig/config | awk -F'[= \t]+' '{ print $2 }'`
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rootfs=`echo $oldroot |sed "s/$lxc_orig/$lxc_new/"`
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container_running=True
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lxc-info -n $lxc_orig --state-is RUNNING || container_running=False
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sed -i '/lxc.rootfs/d' $lxc_path/$lxc_new/config
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if [ -b $oldroot ]; then
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which vgscan >/dev/null 2>&1 || { echo "$(basename $0): lvm is not installed" >&2; false; }
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lvdisplay $oldroot > /dev/null 2>&1 || { echo "$(basename $0): non-lvm blockdev cloning is not supported" >&2; false; }
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lvm=TRUE
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# ok, create a snapshot of the lvm device
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if [ $container_running = "True" ]; then
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lxc-freeze -n $lxc_orig
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frozen=1
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fi
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if [ $lxc_size = "_unset" ]; then
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lxc_size=`lvdisplay $oldroot | grep Size | awk '{ print $3 $4 }'`
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fi
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newlv="${lxc_lv_prefix}${lxc_new}_snapshot"
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lvcreate -s -L $lxc_size -n $newlv $oldroot
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which xfs_admin > /dev/null 2>&1 && {
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# change filesystem UUID if it is an xfs filesystem
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xfs_admin -u /dev/$lxc_vg/$newlv && xfs_admin -U generate /dev/$lxc_vg/$newlv
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}
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if [ $container_running = "True" ]; then
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lxc-unfreeze -n $lxc_orig
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frozen=0
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fi
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if [ $snapshot = "no" ]; then
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#mount snapshot
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mkdir -p ${rootfs}_snapshot
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mount /dev/$lxc_vg/${lxc_lv_prefix}${lxc_new}_snapshot ${rootfs}_snapshot || { echo "$(basename $0): failed to mount new rootfs_snapshot" >&2; false; }
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#create a new lv
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lvcreate -L $lxc_size $lxc_vg -n ${lxc_lv_prefix}$lxc_new
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echo "lxc.rootfs = /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new" >> $lxc_path/$lxc_new/config
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# and mount it so we can tweak it
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mkdir -p $rootfs
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mkfs -t $fstype /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new
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mount /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new $rootfs || { echo "$(basename $0): failed to mount new rootfs" >&2; false; }
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mounted=1
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rsync -Hax ${rootfs}_snapshot/ ${rootfs}/ || { echo "$(basename $0): copying data to new lv failed" >&2; false; }
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umount ${rootfs}_snapshot
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rmdir ${rootfs}_snapshot
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lvremove -f $lxc_vg/${lxc_lv_prefix}${lxc_new}_snapshot
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else
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lvrename $lxc_vg/${lxc_lv_prefix}${lxc_new}_snapshot $lxc_vg/${lxc_lv_prefix}$lxc_new
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echo "lxc.rootfs = /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new" >> $lxc_path/$lxc_new/config
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# and mount it so we can tweak it
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mkdir -p $rootfs
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mount /dev/$lxc_vg/${lxc_lv_prefix}$lxc_new $rootfs || { echo "$(basename $0): failed to mount new rootfs" >&2; false; }
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mounted=1
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fi
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elif which btrfs >/dev/null 2>&1 && btrfs subvolume list $oldroot >/dev/null 2>&1; then
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# if oldroot is a btrfs subvolume, assume they want a snapshot
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btrfs subvolume snapshot "$oldroot" "$rootfs" 2>&1 || { echo "$(basename $0): btrfs snapshot failed" >&2; false; }
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echo "lxc.rootfs = $rootfs" >> "$lxc_path/$lxc_new/config"
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elif [ -d $lxc_path/$lxc_orig/delta0 ]; then # this is a quasi-ephemeral container
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if [ $container_running = "True" ]; then
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echo "$(basename $0): container $lxc_orig is running." >&2
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cleanup
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fi
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rsync -Hax $lxc_path/$lxc_orig/delta0 $lxc_path/$lxc_new/
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touch $lxc_path/$lxc_new/configured
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cp -f $lxc_path/$lxc_orig/pre-mount $lxc_path/$lxc_new/
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sed -i "s@$lxc_path/$lxc_orig@$lxc_path/$lxc_new@g" $lxc_path/$lxc_new/config
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sed -i "s@$lxc_path/$lxc_orig@$lxc_path/$lxc_new@g" $lxc_path/$lxc_new/pre-mount
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sed -i "s@LXC_NAME=\"$lxc_orig@LXC_NAME=\"$lxc_new@" $lxc_path/$lxc_new/pre-mount
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# lxc-start-ephemeral will have updated /etc/hostname and such under the
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# delta0, so just mounting the delta should suffice.
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mkdir -p $rootfs
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mount --bind $lxc_path/$lxc_new/delta0 $rootfs
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mounted=1
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echo "lxc.rootfs = $rootfs" >> "$lxc_path/$lxc_new/config"
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else
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if [ $snapshot = "yes" ]; then
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echo "$(basename $0): cannot snapshot a directory" >&2
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cleanup
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fi
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if [ $container_running = "True" ]; then
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lxc-freeze -n $lxc_orig
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frozen=1
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fi
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mkdir -p $rootfs/
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rsync -Hax $oldroot/ $rootfs/
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echo "lxc.rootfs = $rootfs" >> $lxc_path/$lxc_new/config
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if [ $container_running = "True" ]; then
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lxc-unfreeze -n $lxc_orig
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frozen=0
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fi
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fi
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echo "Updating rootfs..."
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# so you can 'ssh $hostname.' or 'ssh $hostname.local'
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if [ -f $rootfs/etc/dhcp/dhclient.conf ] && ! grep -q "^send host-name.*hostname" $rootfs/etc/dhcp/dhclient.conf; then
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sed -i "s/send host-name.*$/send host-name \"$hostname\";/" $rootfs/etc/dhcp/dhclient.conf
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fi
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c=$lxc_path/$lxc_new/config
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# change hwaddrs
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mv ${c} ${c}.old
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(
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while read line; do
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if echo $line | grep -q -w '^lxc.network.hwaddr'; then
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echo "lxc.network.hwaddr= 00:16:3e:$(openssl rand -hex 3| sed 's/\(..\)/\1:/g; s/.$//')"
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else
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echo "$line"
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fi
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done
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) < ${c}.old > ${c}
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rm -f ${c}.old
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# set the hostname
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cat <<EOF > $rootfs/etc/hostname
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$hostname
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EOF
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# set minimal hosts
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cat <<EOF > $rootfs/etc/hosts
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127.0.0.1 localhost $hostname
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EOF
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# if this was a block device, then umount it now
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if [ $mounted -eq 1 ]; then
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umount $rootfs
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fi
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echo "'$lxc_new' created"
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