tests/qemu-iotests/085

   1 #!/bin/bash
   2 #
   3 # Live snapshot tests
   4 #
   5 # This tests live snapshots of images on a running QEMU instance, using
   6 # QMP commands.  Both single disk snapshots, and transactional group
   7 # snapshots are performed.
   8 #
   9 # Copyright (C) 2014 Red Hat, Inc.
  10 #
  11 # This program is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 2 of the License, or
  14 # (at your option) any later version.
  15 #
  16 # This program is distributed in the hope that it will be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 #
  24
  25 # creator
  26 owner=jcody@redhat.com
  27
  28 seq=`basename $0`
  29 echo "QA output created by $seq"
  30
  31 here=`pwd`
  32 status=1        # failure is the default!
  33
  34 snapshot_virt0="snapshot-v0.qcow2"
  35 snapshot_virt1="snapshot-v1.qcow2"
  36
  37 MAX_SNAPSHOTS=10
  38
  39 _cleanup()
  40 {
  41     _cleanup_qemu
  42     for i in $(seq 1 ${MAX_SNAPSHOTS})
  43     do
  44         rm -f "${TEST_DIR}/${i}-${snapshot_virt0}"
  45         rm -f "${TEST_DIR}/${i}-${snapshot_virt1}"
  46     done
  47         _cleanup_test_img
  48
  49 }
  50 trap "_cleanup; exit \$status" 0 1 2 3 15
  51
  52 # get standard environment, filters and checks
  53 . ./common.rc
  54 . ./common.filter
  55 . ./common.qemu
  56
  57 _supported_fmt qcow2
  58 _supported_proto file
  59 _supported_os Linux
  60
  61
  62 # ${1}: unique identifier for the snapshot filename
  63 function create_single_snapshot()
  64 {
  65     cmd="{ 'execute': 'blockdev-snapshot-sync',
  66                       'arguments': { 'device': 'virtio0',
  67                                      'snapshot-file':'"${TEST_DIR}/${1}-${snapshot_virt0}"',
  68                                      'format': 'qcow2' } }"
  69     _send_qemu_cmd $h "${cmd}" "return"
  70 }
  71
  72 # ${1}: unique identifier for the snapshot filename
  73 function create_group_snapshot()
  74 {
  75     cmd="{ 'execute': 'transaction', 'arguments':
  76            {'actions': [
  77                { 'type': 'blockdev-snapshot-sync', 'data' :
  78                    { 'device': 'virtio0',
  79                       'snapshot-file': '"${TEST_DIR}/${1}-${snapshot_virt0}"' } },
  80                { 'type': 'blockdev-snapshot-sync', 'data' :
  81                    { 'device': 'virtio1',
  82                        'snapshot-file': '"${TEST_DIR}/${1}-${snapshot_virt1}"' } } ]
  83              } }"
  84
  85     _send_qemu_cmd $h "${cmd}" "return"
  86 }
  87
  88 size=128M
  89
  90 _make_test_img $size
  91 mv "${TEST_IMG}" "${TEST_IMG}.orig"
  92 _make_test_img $size
  93
  94 echo
  95 echo === Running QEMU ===
  96 echo
  97
  98 qemu_comm_method="qmp"
  99 _launch_qemu -drive file="${TEST_IMG}.orig",if=virtio -drive file="${TEST_IMG}",if=virtio
 100 h=$QEMU_HANDLE
 101
 102 echo
 103 echo === Sending capabilities ===
 104 echo
 105
 106 _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" "return"
 107
 108 echo
 109 echo === Create a single snapshot on virtio0 ===
 110 echo
 111
 112 create_single_snapshot 1
 113
 114
 115 echo
 116 echo === Invalid command - missing device and nodename ===
 117 echo
 118
 119 _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync',
 120                          'arguments': { 'snapshot-file':'"${TEST_DIR}/1-${snapshot_virt0}"',
 121                                      'format': 'qcow2' } }" "error"
 122
 123 echo
 124 echo === Invalid command - missing snapshot-file ===
 125 echo
 126
 127 _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync',
 128                          'arguments': { 'device': 'virtio0',
 129                                      'format': 'qcow2' } }" "error"
 130 echo
 131 echo
 132 echo === Create several transactional group snapshots ===
 133 echo
 134
 135 for i in $(seq 2 ${MAX_SNAPSHOTS})
 136 do
 137     create_group_snapshot ${i}
 138 done
 139
 140 # success, all done
 141 echo "*** done"
 142 rm -f $seq.full
 143 status=0