| #!/bin/bash |
| # |
| # Tests oVirt-like storage migration: |
| # - Create snapshot |
| # - Create target image with (not yet existing) target backing chain |
| # (i.e. just write the name of a soon-to-be-copied-over backing file into it) |
| # - drive-mirror the snapshot to the target with mode=existing and sync=top |
| # - In the meantime, copy the original source files to the destination via |
| # conventional means (i.e. outside of qemu) |
| # - Complete the drive-mirror job |
| # - Delete all source images |
| # |
| # Copyright (C) 2016 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=mreitz@redhat.com |
| |
| seq="$(basename $0)" |
| echo "QA output created by $seq" |
| |
| here="$PWD" |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| rm -f "$TEST_IMG{,.target}{,.backing,.overlay}" |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| . ./common.qemu |
| |
| _supported_fmt qcow2 qed |
| _supported_proto generic |
| _supported_os Linux |
| |
| # Create source disk |
| TEST_IMG="$TEST_IMG.backing" _make_test_img 1M |
| _make_test_img -b "$TEST_IMG.backing" 1M |
| |
| $QEMU_IO -c 'write -P 1 0 256k' "$TEST_IMG.backing" | _filter_qemu_io |
| $QEMU_IO -c 'write -P 2 64k 192k' "$TEST_IMG" | _filter_qemu_io |
| |
| _launch_qemu -drive if=none,id=source,file="$TEST_IMG" |
| |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'qmp_capabilities' }" \ |
| 'return' |
| |
| # Create snapshot |
| TEST_IMG="$TEST_IMG.overlay" _make_test_img -b "$TEST_IMG" 1M |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'blockdev-snapshot-sync', |
| 'arguments': { 'device': 'source', |
| 'snapshot-file': '$TEST_IMG.overlay', |
| 'format': '$IMGFMT', |
| 'mode': 'existing' } }" \ |
| 'return' |
| |
| # Write something to the snapshot |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'human-monitor-command', |
| 'arguments': { 'command-line': |
| 'qemu-io source \"write -P 3 128k 128k\"' } }" \ |
| 'return' |
| |
| # Create target image |
| TEST_IMG="$TEST_IMG.target.overlay" _make_test_img -b "$TEST_IMG.target" 1M |
| |
| # Mirror snapshot |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'drive-mirror', |
| 'arguments': { 'device': 'source', |
| 'target': '$TEST_IMG.target.overlay', |
| 'mode': 'existing', |
| 'sync': 'top' } }" \ |
| 'return' |
| |
| # Wait for convergence |
| _send_qemu_cmd $QEMU_HANDLE \ |
| '' \ |
| 'BLOCK_JOB_READY' |
| |
| # Write some more |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'human-monitor-command', |
| 'arguments': { 'command-line': |
| 'qemu-io source \"write -P 4 192k 64k\"' } }" \ |
| 'return' |
| |
| # Copy source backing chain to the target before completing the job |
| cp "$TEST_IMG.backing" "$TEST_IMG.target.backing" |
| cp "$TEST_IMG" "$TEST_IMG.target" |
| $QEMU_IMG rebase -u -b "$TEST_IMG.target.backing" "$TEST_IMG.target" |
| |
| # Complete block job |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'block-job-complete', |
| 'arguments': { 'device': 'source' } }" \ |
| '' |
| |
| _send_qemu_cmd $QEMU_HANDLE \ |
| '' \ |
| 'BLOCK_JOB_COMPLETED' |
| |
| # Remove the source images |
| rm -f "$TEST_IMG{,.backing,.overlay}" |
| |
| echo |
| |
| # Check online disk contents |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'human-monitor-command', |
| 'arguments': { 'command-line': |
| 'qemu-io source \"read -P 1 0k 64k\"' } }" \ |
| 'return' |
| |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'human-monitor-command', |
| 'arguments': { 'command-line': |
| 'qemu-io source \"read -P 2 64k 64k\"' } }" \ |
| 'return' |
| |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'human-monitor-command', |
| 'arguments': { 'command-line': |
| 'qemu-io source \"read -P 3 128k 64k\"' } }" \ |
| 'return' |
| |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'human-monitor-command', |
| 'arguments': { 'command-line': |
| 'qemu-io source \"read -P 4 192k 64k\"' } }" \ |
| 'return' |
| |
| echo |
| |
| _send_qemu_cmd $QEMU_HANDLE \ |
| "{ 'execute': 'quit' }" \ |
| 'return' |
| |
| wait=1 _cleanup_qemu |
| |
| echo |
| |
| # Check offline disk contents |
| $QEMU_IO -c 'read -P 1 0k 64k' \ |
| -c 'read -P 2 64k 64k' \ |
| -c 'read -P 3 128k 64k' \ |
| -c 'read -P 4 192k 64k' \ |
| "$TEST_IMG.target.overlay" | _filter_qemu_io |
| |
| echo |
| |
| # success, all done |
| echo '*** done' |
| rm -f $seq.full |
| status=0 |