Mirrors/criu
1
0
Fork 0
mirror of https://github.com/checkpoint-restore/criu.git synced 2026-01-23 02:14:37 +00:00
Code Issues Projects Releases Wiki Activity

tmpfiles: implement user tmp files feature

Browse source 
Add new action script tmp-files.sh, which allows user to
add files that can be lost between checkpoint and restore to the dump.
User files are stored in .tar.gz archive.
Tar command does all the file paths and attributes related work.

Fixes #65

Signed-off-by: Svyatoslav Vlasov <svloyso@gmail.com>
Signed-off-by: Eugene Batalov <eabatalov89@gmail.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
This commit is contained in:
Svyatoslav Vlasov 2016-02-25 20:25:00 +03:00 • committed by Pavel Emelyanov
parent 7f1a4a160a
commit bb7d912e40
1 changed files with 47 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

47
scripts/tmp-files.sh Executable file
View file

@ -0,0 +1,47 @@
#!/bin/bash
#
# Script allows to save arbitrary files in CRIU dump dir and properly restore
# these files on CRIU restore cmd.
#
# Normally you need to call this script for files that can be lost between
# CRIU checkpoint and restore cmds. For example for files stored on non-tmpfs
# mount points. That's why this script is called tmp-files.
#
# You should call this script on both CRIU dump and restore cmds.
#
# Usage:
# criu dump <options> --action-script \
# '$CRIU_SCRIPTS_PATH/tmp-files.sh /tmp/ycm_temp /home/user/.tmpfile.txt.swp'
# criu restore <options> --action-script $CRIU_SCRIPTS_PATH/tmp-files.sh
#
# Note: absolute path to tmp-files.sh should be supplied in --action-script with ''
#
POSTDUMP="post-dump"
PRERESTORE="pre-restore"
DUMPARGS="--create --absolute-names --gzip --no-unquote --no-wildcards --file"
RESTOREARGS="--extract --gzip --no-unquote --no-wildcards --absolute-names --directory / --file"
IMGFILE=$CRTOOLS_IMAGE_DIR"/tmpfiles.tar.gz"
MY_NAME=`basename "$0"`
case "$CRTOOLS_SCRIPT_ACTION" in
$POSTDUMP )
if [ "$#" -lt 1 ]; then
echo "$MY_NAME: ERROR! No files are given."
exit 1
fi
tar $DUMPARGS $IMGFILE -- "$@"
exit $?
;;
$PRERESTORE )
if [ "$#" -ne 0 ]; then
echo "$MY_NAME: ERROR! Not expected script args."
exit 1
fi
tar $RESTOREARGS $IMGFILE
exit $?
;;
esac
exit 0