Ejemplo n.º 1
0
    def create_template_from_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = AgentRsp()
        volume_abs_path = translate_absolute_path_from_install_path(
            cmd.volumePath)
        install_abs_path = translate_absolute_path_from_install_path(
            cmd.installPath)

        if cmd.sharedVolume:
            lvm.do_active_lv(volume_abs_path, lvm.LvmlockdLockType.SHARE, True)

        with lvm.RecursiveOperateLv(volume_abs_path,
                                    shared=cmd.sharedVolume,
                                    skip_deactivate_tag=IMAGE_TAG):
            virtual_size = linux.qcow2_virtualsize(volume_abs_path)
            if not lvm.lv_exists(install_abs_path):
                lvm.create_lv_from_absolute_path(
                    install_abs_path, virtual_size,
                    "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
            with lvm.OperateLv(install_abs_path,
                               shared=False,
                               delete_when_exception=True):
                linux.create_template(volume_abs_path, install_abs_path)
                logger.debug(
                    'successfully created template[%s] from volume[%s]' %
                    (cmd.installPath, cmd.volumePath))
                if cmd.compareQcow2 is True:
                    logger.debug("comparing qcow2 between %s and %s")
                    bash.bash_errorout("time qemu-img compare %s %s" %
                                       (volume_abs_path, install_abs_path))
                    logger.debug("confirmed qcow2 %s and %s are identical" %
                                 (volume_abs_path, install_abs_path))

        rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
        return jsonobject.dumps(rsp)
    def offline_merge_snapshots(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = OfflineMergeSnapshotRsp()
        src_abs_path = translate_absolute_path_from_install_path(cmd.srcPath)
        dst_abs_path = translate_absolute_path_from_install_path(cmd.destPath)

        with lvm.RecursiveOperateLv(src_abs_path, shared=True):
            virtual_size = linux.qcow2_virtualsize(src_abs_path)
            if not lvm.lv_exists(dst_abs_path):
                lvm.create_lv_from_absolute_path(dst_abs_path, virtual_size,
                                                 "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
            with lvm.RecursiveOperateLv(dst_abs_path, shared=False):
                if not cmd.fullRebase:
                    linux.qcow2_rebase(src_abs_path, dst_abs_path)
                else:
                    tmp_lv = 'tmp_%s' % uuidhelper.uuid()
                    tmp_abs_path = os.path.join(os.path.dirname(dst_abs_path), tmp_lv)
                    tmp_abs_path = os.path.join(os.path.dirname(dst_abs_path), tmp_lv)
                    logger.debug("creating temp lv %s" % tmp_abs_path)
                    lvm.create_lv_from_absolute_path(tmp_abs_path, virtual_size,
                                                     "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
                    with lvm.OperateLv(tmp_abs_path, shared=False, delete_when_exception=True):
                        linux.create_template(dst_abs_path, tmp_abs_path)
                        lvm.lv_rename(tmp_abs_path, dst_abs_path, overwrite=True)

        rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
        return jsonobject.dumps(rsp)
Ejemplo n.º 3
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    def offline_merge_snapshots(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = OfflineMergeSnapshotRsp()
        src_abs_path = translate_absolute_path_from_install_path(cmd.srcPath)
        dst_abs_path = translate_absolute_path_from_install_path(cmd.destPath)

        with lvm.RecursiveOperateLv(src_abs_path, shared=True):
            virtual_size = linux.qcow2_virtualsize(src_abs_path)
            if not lvm.lv_exists(dst_abs_path):
                lvm.create_lv_from_absolute_path(dst_abs_path, virtual_size,
                                                 "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
            with lvm.RecursiveOperateLv(dst_abs_path, shared=False):
                if not cmd.fullRebase:
                    linux.qcow2_rebase(src_abs_path, dst_abs_path)
                else:
                    tmp_lv = 'tmp_%s' % uuidhelper.uuid()
                    tmp_abs_path = os.path.join(os.path.dirname(dst_abs_path), tmp_lv)
                    logger.debug("creating temp lv %s" % tmp_abs_path)
                    lvm.create_lv_from_absolute_path(tmp_abs_path, virtual_size,
                                                     "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
                    with lvm.OperateLv(tmp_abs_path, shared=False, delete_when_exception=True):
                        linux.create_template(dst_abs_path, tmp_abs_path)
                        lvm.lv_rename(tmp_abs_path, dst_abs_path, overwrite=True)

        rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
        return jsonobject.dumps(rsp)
Ejemplo n.º 4
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    def rebase_and_merge_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        snapshots = cmd.snapshotInstallPaths
        count = len(snapshots)
        for i in range(count):
            if i + 1 < count:
                target = snapshots[i]
                backing_file = snapshots[i + 1]
                linux.qcow2_rebase_no_check(backing_file, target)

        latest = snapshots[0]
        rsp = RebaseAndMergeSnapshotsResponse()
        workspace_dir = os.path.dirname(cmd.workspaceInstallPath)
        if not os.path.exists(workspace_dir):
            os.makedirs(workspace_dir)

        try:
            linux.create_template(latest, cmd.workspaceInstallPath)
            rsp.size, rsp.actualSize = cmd.workspaceInstallPath
            self._set_capacity_to_response(cmd.uuid, rsp)
        except linux.LinuxError as e:
            logger.warn(linux.get_exception_stacktrace())
            rsp.error = str(e)
            rsp.success = False

        return jsonobject.dumps(rsp)
    def rebase_and_merge_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        snapshots = cmd.snapshotInstallPaths
        count = len(snapshots)
        for i in range(count):
            if i+1 < count:
                target = snapshots[i]
                backing_file = snapshots[i+1]
                linux.qcow2_rebase_no_check(backing_file, target)

        latest = snapshots[0]
        rsp = RebaseAndMergeSnapshotsResponse()
        workspace_dir = os.path.dirname(cmd.workspaceInstallPath)
        if not os.path.exists(workspace_dir):
            os.makedirs(workspace_dir)

        try:
            linux.create_template(latest, cmd.workspaceInstallPath)
            rsp.size, rsp.actualSize = cmd.workspaceInstallPath
            self._set_capacity_to_response(cmd.uuid, rsp)
        except linux.LinuxError as e:
            logger.warn(linux.get_exception_stacktrace())
            rsp.error = str(e)
            rsp.success = False

        return jsonobject.dumps(rsp)
    def create_template_from_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = AgentRsp()
        volume_abs_path = translate_absolute_path_from_install_path(cmd.volumePath)
        install_abs_path = translate_absolute_path_from_install_path(cmd.installPath)

        if cmd.sharedVolume:
            lvm.do_active_lv(volume_abs_path, lvm.LvmlockdLockType.SHARE, True)

        with lvm.RecursiveOperateLv(volume_abs_path, shared=cmd.sharedVolume, skip_deactivate_tags=[IMAGE_TAG]):
            virtual_size = linux.qcow2_virtualsize(volume_abs_path)
            total_size = 0
            for qcow2 in linux.qcow2_get_file_chain(volume_abs_path):
                total_size += int(lvm.get_lv_size(qcow2))

            if total_size > virtual_size:
                total_size = virtual_size

            if not lvm.lv_exists(install_abs_path):
                lvm.create_lv_from_absolute_path(install_abs_path, total_size,
                                                 "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
            with lvm.OperateLv(install_abs_path, shared=False, delete_when_exception=True):
                linux.create_template(volume_abs_path, install_abs_path)
                logger.debug('successfully created template[%s] from volume[%s]' % (cmd.installPath, cmd.volumePath))
                if cmd.compareQcow2 is True:
                    logger.debug("comparing qcow2 between %s and %s")
                    bash.bash_errorout("time qemu-img compare %s %s" % (volume_abs_path, install_abs_path))
                    logger.debug("confirmed qcow2 %s and %s are identical" % (volume_abs_path, install_abs_path))

        rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
        return jsonobject.dumps(rsp)
    def create_template_from_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = AgentRsp()
        dirname = os.path.dirname(cmd.installPath)
        if not os.path.exists(dirname):
            os.makedirs(dirname, 0755)
        linux.create_template(cmd.volumePath, cmd.installPath)

        logger.debug('successfully created template[%s] from volume[%s]' % (cmd.installPath, cmd.volumePath))
        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(cmd.mountPoint)
        return jsonobject.dumps(rsp)
Ejemplo n.º 8
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    def createtemplate(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = AliyunNasResponse()
        dirname = os.path.dirname(cmd.installPath)
        if not os.path.exists(dirname):
            os.makedirs(dirname, 0755)
        linux.create_template(cmd.volumePath, cmd.installPath)

        logger.debug('successfully created template[%s] from volume[%s]' % (cmd.installPath, cmd.volumePath))
        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(cmd.uuid)
        return jsonobject.dumps(rsp)
Ejemplo n.º 9
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    def offline_merge_snapshots(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = AgentRsp()
        if not cmd.fullRebase:
            linux.qcow2_rebase(cmd.srcPath, cmd.destPath)
        else:
            tmp = os.path.join(os.path.dirname(cmd.destPath), '%s.qcow2' % uuidhelper.uuid())
            linux.create_template(cmd.destPath, tmp)
            shell.call("mv %s %s" % (tmp, cmd.destPath))

        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(cmd.mountPoint)
        return jsonobject.dumps(rsp)
    def merge_snapshot_to_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = OfflineMergeSnapshotRsp()
        if not cmd.fullRebase:
            linux.qcow2_rebase(cmd.srcPath, cmd.destPath)
        else:
            tmp = os.path.join(os.path.dirname(cmd.destPath), '%s.qcow2' % uuidhelper.uuid())
            linux.create_template(cmd.destPath, tmp)
            shell.call("mv %s %s" % (tmp, cmd.destPath))

        self._set_capacity_to_response(cmd.uuid, rsp)
        return jsonobject.dumps(rsp)
Ejemplo n.º 11
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    def merge_snapshot_to_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = OfflineMergeSnapshotRsp()
        if not cmd.fullRebase:
            linux.qcow2_rebase(cmd.srcPath, cmd.destPath)
        else:
            tmp = os.path.join(os.path.dirname(cmd.destPath), '%s.qcow2' % uuidhelper.uuid())
            linux.create_template(cmd.destPath, tmp)
            shell.call("mv %s %s" % (tmp, cmd.destPath))

        self._set_capacity_to_response(cmd.uuid, rsp)
        return jsonobject.dumps(rsp)
Ejemplo n.º 12
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    def offlinemerge(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = AliyunNasResponse()
        if not cmd.fullRebase:
            linux.qcow2_rebase(cmd.srcPath, cmd.destPath)
        else:
            tmp = os.path.join(os.path.dirname(cmd.destPath), '%s.qcow2' % uuidhelper.uuid())
            linux.create_template(cmd.destPath, tmp)
            shell.call("mv %s %s" % (tmp, cmd.destPath))

        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(cmd.uuid)
        return jsonobject.dumps(rsp)
Ejemplo n.º 13
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    def merge_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = MergeSnapshotRsp()

        workspace_dir = os.path.dirname(cmd.workspaceInstallPath)
        if not os.path.exists(workspace_dir):
            os.makedirs(workspace_dir)

        linux.create_template(cmd.snapshotInstallPath, cmd.workspaceInstallPath)
        rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(cmd.workspaceInstallPath)

        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(cmd.mountPoint)
        return jsonobject.dumps(rsp)
Ejemplo n.º 14
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    def mergesnapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = MergeSnapshotRsp()

        workspace_dir = os.path.dirname(cmd.workspaceInstallPath)
        if not os.path.exists(workspace_dir):
            os.makedirs(workspace_dir)

        linux.create_template(cmd.snapshotInstallPath, cmd.workspaceInstallPath)
        rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(cmd.workspaceInstallPath)

        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(cmd.uuid)
        return jsonobject.dumps(rsp)
Ejemplo n.º 15
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    def create_template_from_root_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = CreateTemplateFromRootVolumeRsp()
        try:
            dirname = os.path.dirname(cmd.installPath)
            if not os.path.exists(dirname):
                os.makedirs(dirname, 0755)
            linux.create_template(cmd.rootVolumePath, cmd.installPath)
        except linux.LinuxError as e:
            logger.warn(linux.get_exception_stacktrace())
            rsp.error = 'unable to create image to root@%s:%s from root volume[%s], %s' % (cmd.sftpBackupStorageHostName,
                                                                                           cmd.installPath, cmd.rootVolumePath, str(e))
            rsp.success = False

        self._set_capacity_to_response(cmd.uuid, rsp)
        logger.debug('successfully created template[%s] from root volume[%s]' % (cmd.installPath, cmd.rootVolumePath))
        return jsonobject.dumps(rsp)
    def create_template_from_root_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = CreateTemplateFromRootVolumeRsp()
        try:
            dirname = os.path.dirname(cmd.installPath)
            if not os.path.exists(dirname):
                os.makedirs(dirname, 0755)
            linux.create_template(cmd.rootVolumePath, cmd.installPath)
        except linux.LinuxError as e:
            logger.warn(linux.get_exception_stacktrace())
            rsp.error = 'unable to create image to root@%s:%s from root volume[%s], %s' % (cmd.sftpBackupStorageHostName,
                                                                                           cmd.installPath, cmd.rootVolumePath, str(e))
            rsp.success = False

        self._set_capacity_to_response(cmd.uuid, rsp)
        logger.debug('successfully created template[%s] from root volume[%s]' % (cmd.installPath, cmd.rootVolumePath))
        return jsonobject.dumps(rsp)
    def merge_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = MergeSnapshotResponse()

        workspace_dir = os.path.dirname(cmd.workspaceInstallPath)
        if not os.path.exists(workspace_dir):
            os.makedirs(workspace_dir)

        try:
            linux.create_template(cmd.snapshotInstallPath, cmd.workspaceInstallPath)
            rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(cmd.workspaceInstallPath)
            self._set_capacity_to_response(cmd.uuid, rsp)
        except linux.LinuxError as e:
            logger.warn(linux.get_exception_stacktrace())
            rsp.error = str(e)
            rsp.success = False

        return jsonobject.dumps(rsp)
Ejemplo n.º 18
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    def merge_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = MergeSnapshotResponse()

        workspace_dir = os.path.dirname(cmd.workspaceInstallPath)
        if not os.path.exists(workspace_dir):
            os.makedirs(workspace_dir)

        try:
            linux.create_template(cmd.snapshotInstallPath, cmd.workspaceInstallPath)
            rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(cmd.workspaceInstallPath)
            self._set_capacity_to_response(cmd.uuid, rsp)
        except linux.LinuxError as e:
            logger.warn(linux.get_exception_stacktrace())
            rsp.error = str(e)
            rsp.success = False

        return jsonobject.dumps(rsp)
Ejemplo n.º 19
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    def merge_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = MergeSnapshotRsp()
        snapshot_abs_path = translate_absolute_path_from_install_path(cmd.snapshotInstallPath)
        workspace_abs_path = translate_absolute_path_from_install_path(cmd.workspaceInstallPath)

        with lvm.RecursiveOperateLv(snapshot_abs_path, shared=True):
            virtual_size = linux.qcow2_virtualsize(snapshot_abs_path)
            if not lvm.lv_exists(workspace_abs_path):
                lvm.create_lv_from_absolute_path(workspace_abs_path, virtual_size,
                                                 "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
            with lvm.OperateLv(workspace_abs_path, shared=False, delete_when_exception=True):
                linux.create_template(snapshot_abs_path, workspace_abs_path)
                rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(workspace_abs_path)

        rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
        rsp.actualSize = rsp.size
        return jsonobject.dumps(rsp)
Ejemplo n.º 20
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    def merge_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = MergeSnapshotRsp()
        snapshot_abs_path = translate_absolute_path_from_install_path(cmd.snapshotInstallPath)
        workspace_abs_path = translate_absolute_path_from_install_path(cmd.workspaceInstallPath)

        with lvm.RecursiveOperateLv(snapshot_abs_path, shared=True):
            virtual_size = linux.qcow2_virtualsize(snapshot_abs_path)
            if not lvm.lv_exists(workspace_abs_path):
                lvm.create_lv_from_absolute_path(workspace_abs_path, virtual_size,
                                                 "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
            with lvm.OperateLv(workspace_abs_path, shared=False, delete_when_exception=True):
                linux.create_template(snapshot_abs_path, workspace_abs_path)
                rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(workspace_abs_path)

        rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
        rsp.actualSize = rsp.size
        return jsonobject.dumps(rsp)
Ejemplo n.º 21
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    def create_template_from_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = AgentResponse()
        dirname = os.path.dirname(cmd.installPath)
        if not os.path.exists(dirname):
            os.makedirs(dirname, 0755)

        @rollback.rollbackable
        def _0():
            linux.rm_file_force(cmd.insallPath)

        _0()

        t_shell = traceable_shell.get_shell(cmd)
        linux.create_template(cmd.volumePath, cmd.installPath, shell=t_shell)

        logger.debug('successfully created template[%s] from volume[%s]' %
                     (cmd.installPath, cmd.volumePath))
        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(
            cmd.storagePath)
        return jsonobject.dumps(rsp)
Ejemplo n.º 22
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    def offline_merge_snapshots(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = OfflineMergeSnapshotRsp()
        src_abs_path = translate_absolute_path_from_install_path(cmd.srcPath)
        dst_abs_path = translate_absolute_path_from_install_path(cmd.destPath)

        with lvm.RecursiveOperateLv(src_abs_path, shared=True):
            virtual_size = linux.qcow2_virtualsize(src_abs_path)
            if not lvm.lv_exists(dst_abs_path):
                lvm.create_lv_from_absolute_path(
                    dst_abs_path, virtual_size,
                    "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
            with lvm.RecursiveOperateLv(dst_abs_path, shared=False):
                if not cmd.fullRebase:
                    linux.qcow2_rebase(src_abs_path, dst_abs_path)
                else:
                    # TODO(weiw): add tmp disk and then rename is better
                    linux.create_template(src_abs_path, dst_abs_path)

        rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
        return jsonobject.dumps(rsp)
Ejemplo n.º 23
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    def merge_and_rebase_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        snapshots = cmd.snapshotInstallPaths
        count = len(snapshots)
        for i in range(count):
            if i+1 < count:
                target = snapshots[i]
                backing_file = snapshots[i+1]
                linux.qcow2_rebase_no_check(backing_file, target)

        latest = snapshots[0]
        rsp = RebaseAndMergeSnapshotsRsp()
        workspace_dir = os.path.dirname(cmd.workspaceInstallPath)
        if not os.path.exists(workspace_dir):
            os.makedirs(workspace_dir)

        linux.create_template(latest, cmd.workspaceInstallPath)
        rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(cmd.workspaceInstallPath)

        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(cmd.storagePath)
        return jsonobject.dumps(rsp)
Ejemplo n.º 24
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    def create_template_from_volume(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        rsp = AgentRsp()
        volume_abs_path = translate_absolute_path_from_install_path(
            cmd.volumePath)
        install_abs_path = translate_absolute_path_from_install_path(
            cmd.installPath)

        with lvm.RecursiveOperateLv(volume_abs_path, shared=False):
            virtual_size = linux.qcow2_virtualsize(volume_abs_path)
            if not lvm.lv_exists(install_abs_path):
                lvm.create_lv_from_absolute_path(
                    install_abs_path, virtual_size,
                    "%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
            with lvm.OperateLv(install_abs_path,
                               shared=False,
                               delete_when_exception=True):
                linux.create_template(volume_abs_path, install_abs_path)

        logger.debug('successfully created template[%s] from volume[%s]' %
                     (cmd.installPath, cmd.volumePath))
        rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
        return jsonobject.dumps(rsp)
Ejemplo n.º 25
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    def merge_and_rebase_snapshot(self, req):
        cmd = jsonobject.loads(req[http.REQUEST_BODY])
        snapshots = cmd.snapshotInstallPaths
        count = len(snapshots)
        for i in range(count):
            if i + 1 < count:
                target = snapshots[i]
                backing_file = snapshots[i + 1]
                linux.qcow2_rebase_no_check(backing_file, target)

        latest = snapshots[0]
        rsp = RebaseAndMergeSnapshotsRsp()
        workspace_dir = os.path.dirname(cmd.workspaceInstallPath)
        if not os.path.exists(workspace_dir):
            os.makedirs(workspace_dir)

        linux.create_template(latest, cmd.workspaceInstallPath)
        rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(
            cmd.workspaceInstallPath)

        rsp.totalCapacity, rsp.availableCapacity = self._get_disk_capacity(
            cmd.storagePath)
        return jsonobject.dumps(rsp)