Examples with Domain org.libvirt.Domain used on opensource projects

Example 31 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtStartCommandWrapper method getFreeMemory.

private Long getFreeMemory(final Connect conn, final LibvirtComputingResource libvirtComputingResource) {
    try {
        long allocatedMem = 0;
        int[] ids = conn.listDomains();
        for (int id : ids) {
            Domain dm = conn.domainLookupByID(id);
            allocatedMem += dm.getMaxMemory() * 1024L;
            s_logger.debug("vm: " + dm.getName() + " mem: " + dm.getMaxMemory() * 1024L);
        }
        Long remainingMem = libvirtComputingResource.getTotalMemory() - allocatedMem;
        s_logger.debug("remaining mem" + remainingMem);
        return remainingMem;
    } catch (Exception e) {
        s_logger.debug("failed to get free memory", e);
        return null;
    }
}

Example 32 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtStopCommandWrapper method execute.

@Override
public Answer execute(final StopCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final String vmName = command.getVmName();
    final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
    if (command.checkBeforeCleanup()) {
        try {
            final Connect conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
            final Domain vm = conn.domainLookupByName(command.getVmName());
            if (vm != null && vm.getInfo().state == DomainState.VIR_DOMAIN_RUNNING) {
                return new StopAnswer(command, "vm is still running on host", false);
            }
        } catch (final Exception e) {
            s_logger.debug("Failed to get vm status in case of checkboforecleanup is true", e);
        }
    }
    File pemFile = new File(LibvirtComputingResource.SSHPRVKEYPATH);
    try {
        if (vmName.startsWith("s-") || vmName.startsWith("v-")) {
            //move the command line file to backup.
            s_logger.debug("backing up the cmdline");
            try {
                Pair<Boolean, String> ret = SshHelper.sshExecute(command.getControlIp(), 3922, "root", pemFile, null, "mv -f " + CMDLINE_PATH + " " + CMDLINE_BACKUP_PATH);
                if (!ret.first()) {
                    s_logger.debug("Failed to backup cmdline file due to " + ret.second());
                }
            } catch (Exception e) {
                s_logger.debug("Failed to backup cmdline file due to " + e.getMessage());
            }
        }
        final Connect conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
        final List<DiskDef> disks = libvirtComputingResource.getDisks(conn, vmName);
        final List<InterfaceDef> ifaces = libvirtComputingResource.getInterfaces(conn, vmName);
        libvirtComputingResource.destroyNetworkRulesForVM(conn, vmName);
        final String result = libvirtComputingResource.stopVM(conn, vmName);
        if (result == null) {
            for (final DiskDef disk : disks) {
                libvirtComputingResource.cleanupDisk(disk);
            }
            for (final InterfaceDef iface : ifaces) {
                // each interface at this point, so inform all vif drivers
                for (final VifDriver vifDriver : libvirtComputingResource.getAllVifDrivers()) {
                    vifDriver.unplug(iface);
                }
            }
        }
        return new StopAnswer(command, result, true);
    } catch (final LibvirtException e) {
        s_logger.debug("unable to stop VM:" + vmName + " due to" + e.getMessage());
        try {
            if (vmName.startsWith("s-") || vmName.startsWith("v-"))
                s_logger.debug("restoring cmdline file from backup");
            Pair<Boolean, String> ret = SshHelper.sshExecute(command.getControlIp(), 3922, "root", pemFile, null, "mv " + CMDLINE_BACKUP_PATH + " " + CMDLINE_PATH);
            if (!ret.first()) {
                s_logger.debug("unable to restore cmdline due to " + ret.second());
            }
        } catch (final Exception ex) {
            s_logger.debug("unable to restore cmdline due to:" + ex.getMessage());
        }
        return new StopAnswer(command, e.getMessage(), false);
    }
}

Example 33 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtUnPlugNicCommandWrapper method execute.

@Override
public Answer execute(final UnPlugNicCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final NicTO nic = command.getNic();
    final String vmName = command.getVmName();
    Domain vm = null;
    try {
        final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
        final Connect conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
        vm = libvirtComputingResource.getDomain(conn, vmName);
        final List<InterfaceDef> pluggedNics = libvirtComputingResource.getInterfaces(conn, vmName);
        for (final InterfaceDef pluggedNic : pluggedNics) {
            if (pluggedNic.getMacAddress().equalsIgnoreCase(nic.getMac())) {
                vm.detachDevice(pluggedNic.toString());
                // each interface at this point, so inform all vif drivers
                for (final VifDriver vifDriver : libvirtComputingResource.getAllVifDrivers()) {
                    vifDriver.unplug(pluggedNic);
                }
                return new UnPlugNicAnswer(command, true, "success");
            }
        }
        return new UnPlugNicAnswer(command, true, "success");
    } catch (final LibvirtException e) {
        final String msg = " Unplug Nic failed due to " + e.toString();
        s_logger.warn(msg, e);
        return new UnPlugNicAnswer(command, false, msg);
    } finally {
        if (vm != null) {
            try {
                vm.free();
            } catch (final LibvirtException l) {
                s_logger.trace("Ignoring libvirt error.", l);
            }
        }
    }
}

Example 34 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtPlugNicCommandWrapper method execute.

@Override
public Answer execute(final PlugNicCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final NicTO nic = command.getNic();
    final String vmName = command.getVmName();
    Domain vm = null;
    try {
        final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
        final Connect conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
        vm = libvirtComputingResource.getDomain(conn, vmName);
        final List<InterfaceDef> pluggedNics = libvirtComputingResource.getInterfaces(conn, vmName);
        Integer nicnum = 0;
        for (final InterfaceDef pluggedNic : pluggedNics) {
            if (pluggedNic.getMacAddress().equalsIgnoreCase(nic.getMac())) {
                s_logger.debug("found existing nic for mac " + pluggedNic.getMacAddress() + " at index " + nicnum);
                return new PlugNicAnswer(command, true, "success");
            }
            nicnum++;
        }
        final VifDriver vifDriver = libvirtComputingResource.getVifDriver(nic.getType());
        final InterfaceDef interfaceDef = vifDriver.plug(nic, "Other PV", "");
        vm.attachDevice(interfaceDef.toString());
        return new PlugNicAnswer(command, true, "success");
    } catch (final LibvirtException e) {
        final String msg = " Plug Nic failed due to " + e.toString();
        s_logger.warn(msg, e);
        return new PlugNicAnswer(command, false, msg);
    } catch (final InternalErrorException e) {
        final String msg = " Plug Nic failed due to " + e.toString();
        s_logger.warn(msg, e);
        return new PlugNicAnswer(command, false, msg);
    } finally {
        if (vm != null) {
            try {
                vm.free();
            } catch (final LibvirtException l) {
                s_logger.trace("Ignoring libvirt error.", l);
            }
        }
    }
}

Example 35 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtComputingResourceTest method testGetVmStat.

@Test
public void testGetVmStat() throws LibvirtException {
    final Connect connect = Mockito.mock(Connect.class);
    final Domain domain = Mockito.mock(Domain.class);
    final DomainInfo domainInfo = new DomainInfo();
    final MemoryStatistic[] domainMem = new MemoryStatistic[2];
    domainMem[0] = Mockito.mock(MemoryStatistic.class);
    Mockito.when(domain.getInfo()).thenReturn(domainInfo);
    Mockito.when(domain.memoryStats(2)).thenReturn(domainMem);
    Mockito.when(connect.domainLookupByName(VMNAME)).thenReturn(domain);
    final NodeInfo nodeInfo = new NodeInfo();
    nodeInfo.cpus = 8;
    nodeInfo.memory = 8 * 1024 * 1024;
    nodeInfo.sockets = 2;
    nodeInfo.threads = 2;
    nodeInfo.model = "Foo processor";
    Mockito.when(connect.nodeInfo()).thenReturn(nodeInfo);
    // this is testing the interface stats, returns an increasing number of sent and received bytes
    Mockito.when(domain.interfaceStats(Matchers.anyString())).thenAnswer(new org.mockito.stubbing.Answer<DomainInterfaceStats>() {

        // increment with less than a KB, so this should be less than 1 KB
        static final int increment = 1000;

        int rxBytes = 1000;

        int txBytes = 1000;

        @Override
        public DomainInterfaceStats answer(final InvocationOnMock invocation) throws Throwable {
            final DomainInterfaceStats domainInterfaceStats = new DomainInterfaceStats();
            domainInterfaceStats.rx_bytes = rxBytes += increment;
            domainInterfaceStats.tx_bytes = txBytes += increment;
            return domainInterfaceStats;
        }
    });
    Mockito.when(domain.blockStats(Matchers.anyString())).thenAnswer(new org.mockito.stubbing.Answer<DomainBlockStats>() {

        // a little less than a KB
        static final int increment = 1000;

        int rdBytes = 0;

        int wrBytes = 1024;

        @Override
        public DomainBlockStats answer(final InvocationOnMock invocation) throws Throwable {
            final DomainBlockStats domainBlockStats = new DomainBlockStats();
            domainBlockStats.rd_bytes = rdBytes += increment;
            domainBlockStats.wr_bytes = wrBytes += increment;
            return domainBlockStats;
        }
    });
    final LibvirtComputingResource libvirtComputingResource = new LibvirtComputingResource() {

        @Override
        public List<InterfaceDef> getInterfaces(final Connect conn, final String vmName) {
            final InterfaceDef interfaceDef = new InterfaceDef();
            return Arrays.asList(interfaceDef);
        }

        @Override
        public List<DiskDef> getDisks(final Connect conn, final String vmName) {
            final DiskDef diskDef = new DiskDef();
            return Arrays.asList(diskDef);
        }
    };
    libvirtComputingResource.getVmStat(connect, VMNAME);
    final VmStatsEntry vmStat = libvirtComputingResource.getVmStat(connect, VMNAME);
    // network traffic as generated by the logic above, must be greater than zero
    Assert.assertTrue(vmStat.getNetworkReadKBs() > 0);
    Assert.assertTrue(vmStat.getNetworkWriteKBs() > 0);
    // IO traffic as generated by the logic above, must be greater than zero
    Assert.assertTrue(vmStat.getDiskReadKBs() > 0);
    Assert.assertTrue(vmStat.getDiskWriteKBs() > 0);
    // Memory limit of VM must be greater than zero
    Assert.assertTrue(vmStat.getIntFreeMemoryKBs() >= 0);
    Assert.assertTrue(vmStat.getMemoryKBs() >= 0);
    Assert.assertTrue(vmStat.getTargetMemoryKBs() >= vmStat.getMemoryKBs());
}