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SUSE:SLE-12-SP3:GA
libvirt.401
b73aafd6-virt-lxc-convert.patch
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File b73aafd6-virt-lxc-convert.patch of Package libvirt.401
From b73aafd6ddddc8c478f8a09714578c1ed7eff60d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Bosdonnat?= <cbosdonnat@suse.com> Date: Tue, 17 Jun 2014 09:26:22 +0200 Subject: [PATCH] Added example script on how to convert LXC container config --- Makefile.am | 3 +- configure.ac | 1 + examples/lxcconvert/Makefile.am | 18 +++++ examples/lxcconvert/virt-lxc-convert | 127 +++++++++++++++++++++++++++++++++++ 4 files changed, 148 insertions(+), 1 deletion(-) create mode 100644 examples/lxcconvert/Makefile.am create mode 100644 examples/lxcconvert/virt-lxc-convert Index: libvirt-1.2.5/Makefile.am =================================================================== --- libvirt-1.2.5.orig/Makefile.am +++ libvirt-1.2.5/Makefile.am @@ -23,7 +23,8 @@ SUBDIRS = . gnulib/lib include src daemo tests po examples/object-events examples/hellolibvirt \ examples/dominfo examples/domsuspend examples/apparmor \ examples/xml/nwfilter examples/openauth examples/systemtap \ - tools/wireshark examples/dommigrate + tools/wireshark examples/dommigrate \ + examples/lxcconvert ACLOCAL_AMFLAGS = -I m4 Index: libvirt-1.2.5/configure.ac =================================================================== --- libvirt-1.2.5.orig/configure.ac +++ libvirt-1.2.5/configure.ac @@ -2742,6 +2742,7 @@ AC_CONFIG_FILES([\ examples/hellolibvirt/Makefile \ examples/systemtap/Makefile \ examples/xml/nwfilter/Makefile \ + examples/lxcconvert/Makefile \ tools/wireshark/Makefile \ tools/wireshark/src/Makefile]) AC_OUTPUT Index: libvirt-1.2.5/examples/lxcconvert/Makefile.am =================================================================== --- /dev/null +++ libvirt-1.2.5/examples/lxcconvert/Makefile.am @@ -0,0 +1,18 @@ +## Copyright (C) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany. +## +## 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, see +## <http://www.gnu.org/licenses/>. + +EXTRA_DIST= \ + virt-lxc-convert Index: libvirt-1.2.5/examples/lxcconvert/virt-lxc-convert =================================================================== --- /dev/null +++ libvirt-1.2.5/examples/lxcconvert/virt-lxc-convert @@ -0,0 +1,127 @@ +#!/bin/sh +# lxc_native.c: LXC native configuration import +# +# Copyright (c) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany. +# +# 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, see +# <http://www.gnu.org/licenses/>. +# +# Author: Cedric Bosdonnat <cbosdonnat@suse.com> + +handler_cleanup() +{ + if test "$conf_dir"; then + # Remove the temporary config + rm -r "$conf_dir" + fi +} +trap handler_cleanup INT EXIT + +show_help() +{ + cat << EOF +$0 /path/to/lxc/config/file + +Wrapper around virsh domxml-from-native to ease conversion of LXC +containers configuration to libvirt domain XML. +EOF +} + +if test $# != 1; then + show_help + exit 1 +fi + +if test "$1" = "--help" || test "$1" = "-h"; then + show_help + exit $? +fi + +conf=$1 + +conf_dir=$(mktemp --tmpdir -d virt-lxc-convert-XXX) +conf_new=$conf_dir/config + +cp "$conf" "$conf_new" + +# Do we have lxc.mount, and is it pointing to a readable file? +fstab=$(sed -n '/lxc.mount[[:space:]]*=/ s/[[:space:]]*=[[:space:]]*/=/p' \ + "$conf_new" | cut -f 2 -d '=') +if test -r "$fstab"; then + sed 's/^lxc.mount[[:space:]]*=.*$//' "$conf_new" >"${conf_new}.tmp" + mv "${conf_new}.tmp" "${conf_new}" + sed 's/^\([^#]\)/lxc.mount.entry = \1/' "$fstab" >>"${conf_new}" +fi + +memory=$(free | sed -n '/Mem:/s/ \+/ /gp' | cut -f 2 -d ' ') +default_tmpfs="size=$((memory/2))" + +# Do we have tmpfs without size param? +lineno=0 +while read line; do + lineno=$(expr $lineno + 1) + has_rel_size=false + case $line in + lxc.mount.entry[[:space:]]*=[[:space:]]*tmpfs[[:space:]]*) + is_tmpfs=true + ;; + *) + is_tmpfs=false + ;; + esac + + # We only care about tmpfs mount entries here + if ! $is_tmpfs; then + continue + fi + + case $line in + *size=[0-9][0-9]*%*) + has_rel_size=true + has_size=true + ;; + *size=*) + has_size=true + ;; + *) + has_size=false + ;; + esac + + # Add the default size here (50%) if no size is given + if ! $has_size; then + last_option_match="\([[:space:]]*[0-9][[:space:]]*[0-9][::space::]*$\)" + sed "${lineno}s/$last_option_match/,$default_tmpfs\1/" \ + "$conf_new" >"${conf_new}.tmp" + mv "${conf_new}.tmp" "${conf_new}" + fi + + # Convert relative sizes + if $has_rel_size; then + percent=$(echo "$line" | sed 's/.*size=\([0-9][0-9]*\)%.*/\1/') + size="$((memory*percent/100))" + sed "${lineno}s/size=[0-9]*%/size=${size}/" \ + "$conf_new" >"${conf_new}.tmp" + mv "${conf_new}.tmp" "${conf_new}" + fi +done < "$conf_new" + +# Do we have any memory limit set? +mem_limit=$(grep 'lxc.cgroup.memory.limit_in_bytes[[:space:]]*=' $conf_new) +if test -z "$mem_limit"; then + echo "lxc.cgroup.memory.limit_in_bytes = $memory" >> "$conf_new" +fi + +virsh -c lxc:/// domxml-from-native lxc-tools $conf_new +exit $?
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