diff options
Diffstat (limited to 'yardstick/benchmark/contexts/standalone/model.py')
| -rw-r--r-- | yardstick/benchmark/contexts/standalone/model.py | 92 |
1 files changed, 66 insertions, 26 deletions
diff --git a/yardstick/benchmark/contexts/standalone/model.py b/yardstick/benchmark/contexts/standalone/model.py index 14738da8a..4d43f2611 100644 --- a/yardstick/benchmark/contexts/standalone/model.py +++ b/yardstick/benchmark/contexts/standalone/model.py @@ -12,7 +12,6 @@ # See the License for the specific language governing permissions and # limitations under the License. -from __future__ import absolute_import import os import re import time @@ -25,11 +24,12 @@ from netaddr import IPNetwork import xml.etree.ElementTree as ET from yardstick import ssh -from yardstick.common.constants import YARDSTICK_ROOT_PATH +from yardstick.common import constants +from yardstick.common import exceptions from yardstick.common.yaml_loader import yaml_load from yardstick.network_services.utils import PciAddress from yardstick.network_services.helpers.cpu import CpuSysCores -from yardstick.common.utils import write_file + LOG = logging.getLogger(__name__) @@ -106,12 +106,17 @@ class Libvirt(object): @staticmethod def virsh_create_vm(connection, cfg): - err = connection.execute("virsh create %s" % cfg)[0] - LOG.info("VM create status: %s", err) + LOG.info('VM create, XML config: %s', cfg) + status, _, error = connection.execute('virsh create %s' % cfg) + if status: + raise exceptions.LibvirtCreateError(error=error) @staticmethod def virsh_destroy_vm(vm_name, connection): - connection.execute("virsh destroy %s" % vm_name) + LOG.info('VM destroy, VM name: %s', vm_name) + status, _, error = connection.execute('virsh destroy %s' % vm_name) + if status: + LOG.warning('Error destroying VM %s. Error: %s', vm_name, error) @staticmethod def _add_interface_address(interface, pci_address): @@ -132,7 +137,7 @@ class Libvirt(object): return vm_pci @classmethod - def add_ovs_interface(cls, vpath, port_num, vpci, vports_mac, xml): + def add_ovs_interface(cls, vpath, port_num, vpci, vports_mac, xml_str): """Add a DPDK OVS 'interface' XML node in 'devices' node <devices> @@ -156,7 +161,7 @@ class Libvirt(object): vhost_path = ('{0}/var/run/openvswitch/dpdkvhostuser{1}'. format(vpath, port_num)) - root = ET.parse(xml) + root = ET.fromstring(xml_str) pci_address = PciAddress(vpci.strip()) device = root.find('devices') @@ -181,10 +186,10 @@ class Libvirt(object): cls._add_interface_address(interface, pci_address) - root.write(xml) + return ET.tostring(root) @classmethod - def add_sriov_interfaces(cls, vm_pci, vf_pci, vf_mac, xml): + def add_sriov_interfaces(cls, vm_pci, vf_pci, vf_mac, xml_str): """Add a SR-IOV 'interface' XML node in 'devices' node <devices> @@ -207,7 +212,7 @@ class Libvirt(object): -sr_iov-how_sr_iov_libvirt_works """ - root = ET.parse(xml) + root = ET.fromstring(xml_str) device = root.find('devices') interface = ET.SubElement(device, 'interface') @@ -224,20 +229,47 @@ class Libvirt(object): pci_vm_address = PciAddress(vm_pci.strip()) cls._add_interface_address(interface, pci_vm_address) - root.write(xml) + 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)) + def create_snapshot_qemu(connection, index, base_image): + """Create the snapshot image for a VM using a base image - return 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, cfg, vm_name, index): + def build_vm_xml(cls, connection, flavor, vm_name, index): + """Build the XML from the configuration parameters""" memory = flavor.get('ram', '4096') extra_spec = flavor.get('extra_specs', {}) cpu = extra_spec.get('hw:cpu_cores', '2') @@ -261,9 +293,7 @@ class Libvirt(object): socket=socket, threads=threads, vm_image=image, cpuset=cpuset, cputune=cputune) - write_file(cfg, vm_xml) - - return [vcpu, mac] + return vm_xml, mac @staticmethod def update_interrupts_hugepages_perf(connection): @@ -283,6 +313,13 @@ class Libvirt(object): cpuset = "%s,%s" % (cores, threads) return cpuset + @classmethod + def write_file(cls, file_name, xml_str): + """Dump a XML string to a file""" + root = ET.fromstring(xml_str) + et = ET.ElementTree(element=root) + et.write(file_name, encoding='utf-8', method='xml') + class StandaloneContextHelper(object): """ This class handles all the common code for standalone @@ -374,7 +411,8 @@ class StandaloneContextHelper(object): except IOError as io_error: if io_error.errno != errno.ENOENT: raise - self.file_path = os.path.join(YARDSTICK_ROOT_PATH, file_path) + self.file_path = os.path.join(constants.YARDSTICK_ROOT_PATH, + file_path) cfg = self.read_config_file() nodes.extend([node for node in cfg["nodes"] if str(node["role"]) != nfvi_role]) @@ -506,7 +544,7 @@ class OvsDeploy(object): StandaloneContextHelper.install_req_libs(self.connection, pkgs) def ovs_deploy(self): - ovs_deploy = os.path.join(YARDSTICK_ROOT_PATH, + ovs_deploy = os.path.join(constants.YARDSTICK_ROOT_PATH, "yardstick/resources/scripts/install/", self.OVS_DEPLOY_SCRIPT) if os.path.isfile(ovs_deploy): @@ -522,4 +560,6 @@ class OvsDeploy(object): cmd = "sudo -E %s --ovs='%s' --dpdk='%s' -p='%s'" % (remote_ovs_deploy, ovs, dpdk, http_proxy) - self.connection.execute(cmd) + exit_status, _, stderr = self.connection.execute(cmd) + if exit_status: + raise exceptions.OVSDeployError(stderr=stderr) |