#!/usr/bin/env bash
# group: rw auto quick snapshot
#
# Test which nodes are involved in internal snapshots
#
# Copyright (C) 2019 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# creator
owner=kwolf@redhat.com
seq=`basename $0`
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
rm -f "$SOCK_DIR/nbd"
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt qcow2
_supported_proto file
_supported_os Linux
_require_drivers copy-on-read
# Internal snapshots are (currently) impossible with refcount_bits=1,
# and generally impossible with external data files
_unsupported_imgopts 'refcount_bits=1[^0-9]' data_file
_require_devices virtio-blk
do_run_qemu()
{
echo Testing: "$@"
(
if ! test -t 0; then
while read cmd; do
echo $cmd
done
fi
echo quit
) | $QEMU -nographic -monitor stdio -nodefaults "$@"
echo
}
run_qemu()
{
do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp |
_filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size
}
size=128M
run_test()
{
if [ -n "$BACKING_FILE" ]; then
_make_test_img -b "$BACKING_FILE" -F $IMGFMT $size
else
_make_test_img $size
fi
printf "savevm snap0\ninfo snapshots\nloadvm snap0\n" | run_qemu "$@" | _filter_date
}
echo
echo "=== No block devices at all ==="
echo
run_test
echo
echo "=== -drive if=none ==="
echo
run_test -drive driver=file,file="$TEST_IMG",if=none
run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none
run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0
echo
echo "=== -drive if=virtio ==="
echo
run_test -drive driver=file,file="$TEST_IMG",if=virtio
run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio
echo
echo "=== Simple -blockdev ==="
echo
run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file
run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
-blockdev driver=$IMGFMT,file=file,node-name=fmt
run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
-blockdev driver=raw,file=file,node-name=raw \
-blockdev driver=$IMGFMT,file=raw,node-name=fmt
echo
echo "=== -blockdev with a filter on top ==="
echo
run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
-blockdev driver=$IMGFMT,file=file,node-name=fmt \
-blockdev driver=copy-on-read,file=fmt,node-name=filter
echo
echo "=== -blockdev with a backing file ==="
echo
TEST_IMG="$TEST_IMG.base" _make_test_img $size
BACKING_FILE="$TEST_IMG.base" \
run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
-blockdev driver=file,filename="$TEST_IMG",node-name=file \
-blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt
BACKING_FILE="$TEST_IMG.base" \
run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
-blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
-blockdev driver=file,filename="$TEST_IMG",node-name=file \
-blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt
# A snapshot should be present on the overlay, but not the backing file
echo Internal snapshots on overlay:
$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
echo Internal snapshots on backing file:
$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
echo
echo "=== -blockdev with NBD server on the backing file ==="
echo
_make_test_img -b "$TEST_IMG.base" -F $IMGFMT $size
cat <<EOF |
nbd_server_start unix:$SOCK_DIR/nbd
nbd_server_add -w backing-fmt
savevm snap0
info snapshots
loadvm snap0
EOF
run_qemu -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
-blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
-blockdev driver=file,filename="$TEST_IMG",node-name=file \
-blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt |
_filter_date
# This time, a snapshot should be created on both files
echo Internal snapshots on overlay:
$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
echo Internal snapshots on backing file:
$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
# success, all done
echo "*** done"
rm -f $seq.full
status=0
