diff options
Diffstat (limited to 'yardstick/benchmark/contexts/standalone/model.py')
| -rw-r--r-- | yardstick/benchmark/contexts/standalone/model.py | 42 |
1 files changed, 34 insertions, 8 deletions
diff --git a/yardstick/benchmark/contexts/standalone/model.py b/yardstick/benchmark/contexts/standalone/model.py index f18d090d8..4d43f2611 100644 --- a/yardstick/benchmark/contexts/standalone/model.py +++ b/yardstick/benchmark/contexts/standalone/model.py @@ -232,14 +232,40 @@ class Libvirt(object): return ET.tostring(root) @staticmethod - def create_snapshot_qemu(connection, index, vm_image): - # build snapshot image - image = "/var/lib/libvirt/images/%s.qcow2" % index - connection.execute("rm %s" % image) - qemu_template = "qemu-img create -f qcow2 -o backing_file=%s %s" - connection.execute(qemu_template % (vm_image, image)) - - return image + def create_snapshot_qemu(connection, index, base_image): + """Create the snapshot image for a VM using a base image + + :param connection: SSH connection to the remote host + :param index: index of the VM to be spawn + :param base_image: path of the VM base image in the remote host + :return: snapshot image path + """ + vm_image = '/var/lib/libvirt/images/%s.qcow2' % index + connection.execute('rm -- "%s"' % vm_image) + status, _, _ = connection.execute('test -r %s' % base_image) + if status: + if not os.access(base_image, os.R_OK): + raise exceptions.LibvirtQemuImageBaseImageNotPresent( + vm_image=vm_image, base_image=base_image) + # NOTE(ralonsoh): done in two steps to avoid root permission + # issues. + LOG.info('Copy %s from execution host to remote host', base_image) + file_name = os.path.basename(os.path.normpath(base_image)) + connection.put_file(base_image, '/tmp/%s' % file_name) + status, _, error = connection.execute( + 'mv -- "/tmp/%s" "%s"' % (file_name, base_image)) + if status: + raise exceptions.LibvirtQemuImageCreateError( + vm_image=vm_image, base_image=base_image, error=error) + + LOG.info('Convert image %s to %s', base_image, vm_image) + qemu_cmd = ('qemu-img create -f qcow2 -o backing_file=%s %s' % + (base_image, vm_image)) + status, _, error = connection.execute(qemu_cmd) + if status: + raise exceptions.LibvirtQemuImageCreateError( + vm_image=vm_image, base_image=base_image, error=error) + return vm_image @classmethod def build_vm_xml(cls, connection, flavor, vm_name, index): |