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kvm: resolve RBD disks of unmanaged instances without a mount lookup by weizhouapache · Pull Request #14693 · apache/cloudstack · GitHub

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kvm: resolve RBD disks of unmanaged instances without a mount lookup #14693

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kvm: resolve RBD disks of unmanaged instances without a mount lookup #14693

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32 changes: 22 additions & 10 deletions ...com/cloud/hypervisor/kvm/resource/wrapper/LibvirtGetUnmanagedInstancesCommandWrapper.java
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Original file line number Diff line number Diff line change
Expand Up @@ -191,7 +191,7 @@ private List<UnmanagedInstanceTO.Nic> getUnmanagedInstanceNics(LibvirtComputingR
return nics;
}

private List<UnmanagedInstanceTO.Disk> getUnmanagedInstanceDisks(List<LibvirtVMDef.DiskDef> disksInfo, LibvirtComputingResource libvirtComputingResource, Connect conn, String domainName) {
protected List<UnmanagedInstanceTO.Disk> getUnmanagedInstanceDisks(List<LibvirtVMDef.DiskDef> disksInfo, LibvirtComputingResource libvirtComputingResource, Connect conn, String domainName) {
final ArrayList<UnmanagedInstanceTO.Disk> disks = new ArrayList<>(disksInfo.size());
int counter = 0;
for (LibvirtVMDef.DiskDef diskDef : disksInfo) {
Expand All @@ -215,18 +215,30 @@ private List<UnmanagedInstanceTO.Disk> getUnmanagedInstanceDisks(List<LibvirtVMD
disk.setLabel(diskDef.getDiskLabel());
disk.setController(diskDef.getBusType().toString());

Pair<String, String> sourceHostPath = getSourceHostPath(libvirtComputingResource, diskDef.getSourcePath());
if (sourceHostPath != null) {
disk.setDatastoreHost(sourceHostPath.first());
disk.setDatastorePath(sourceHostPath.second());
if (diskDef.getDiskType() == LibvirtVMDef.DiskDef.DiskType.NETWORK
&& diskDef.getDiskProtocol() == LibvirtVMDef.DiskDef.DiskProtocol.RBD) {
// RBD disks are not backed by a mounted filesystem, so a mount lookup would match an
// unrelated mount. Use the monitor host and the pool name from the source. Other network
// disks (Gluster) keep the mount lookup, as their pool path is the mounted volume.
String sourcePath = diskDef.getSourcePath();
int poolEnd = sourcePath.indexOf("/");
String poolName = poolEnd > 0 ? sourcePath.substring(0, poolEnd) : sourcePath;
disk.setDatastoreHost(diskDef.getSourceHost());
disk.setDatastorePath(poolName);
} else {
int pathEnd = diskDef.getSourcePath().lastIndexOf("/");
if (pathEnd >= 0) {
disk.setDatastorePath(diskDef.getSourcePath().substring(0, pathEnd));
Pair<String, String> sourceHostPath = getSourceHostPath(libvirtComputingResource, diskDef.getSourcePath());
if (sourceHostPath != null) {
disk.setDatastoreHost(sourceHostPath.first());
disk.setDatastorePath(sourceHostPath.second());
} else {
disk.setDatastorePath(diskDef.getSourcePath());
int pathEnd = diskDef.getSourcePath().lastIndexOf("/");
if (pathEnd >= 0) {
disk.setDatastorePath(diskDef.getSourcePath().substring(0, pathEnd));
} else {
disk.setDatastorePath(diskDef.getSourcePath());
}
disk.setDatastoreHost(diskDef.getSourceHost());
}
disk.setDatastoreHost(diskDef.getSourceHost());
}

disk.setDatastoreType(diskDef.getDiskType().toString());
Expand Down
61 changes: 61 additions & 0 deletions ...cloud/hypervisor/kvm/resource/wrapper/LibvirtGetUnmanagedInstancesCommandWrapperTest.java
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Expand Up @@ -16,14 +16,21 @@
// under the License.
package com.cloud.hypervisor.kvm.resource.wrapper;

import com.cloud.hypervisor.kvm.resource.LibvirtComputingResource;
import com.cloud.hypervisor.kvm.resource.LibvirtVMDef;
import com.cloud.utils.Pair;
import org.apache.cloudstack.vm.UnmanagedInstanceTO;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.libvirt.Connect;
import org.libvirt.Domain;
import org.libvirt.DomainBlockInfo;
import org.mockito.Mockito;
import org.mockito.Spy;
import org.mockito.junit.MockitoJUnitRunner;

import java.util.List;
import java.util.UUID;

@RunWith(MockitoJUnitRunner.class)
Expand Down Expand Up @@ -70,4 +77,58 @@ public void testGetDiskRelativePathFullPath() {
Mockito.when(diskDef.getSourcePath()).thenReturn(imagePath);
Assert.assertEquals(relativePath, wrapper.getDiskRelativePath(diskDef));
}

@Test
public void testGlusterDiskStillUsesMountLookup() throws Exception {
LibvirtComputingResource libvirtComputingResource = Mockito.mock(LibvirtComputingResource.class);
Connect conn = Mockito.mock(Connect.class);
Domain domain = Mockito.mock(Domain.class);
String domainName = "i-2-40-VM";
Mockito.when(conn.domainLookupByName(domainName)).thenReturn(domain);
Mockito.when(domain.blockInfo(Mockito.anyString())).thenReturn(Mockito.mock(DomainBlockInfo.class));
Mockito.when(libvirtComputingResource.getSourceHostPath("vol1"))
.thenReturn(new Pair<>("10.0.0.5", "/vol1"));

LibvirtVMDef.DiskDef glusterDisk = new LibvirtVMDef.DiskDef();
glusterDisk.defNetworkBasedDisk("vol1/img.qcow2", "10.0.0.5", 24007, null, null, 0,
LibvirtVMDef.DiskDef.DiskBus.VIRTIO, LibvirtVMDef.DiskDef.DiskProtocol.GLUSTER,
LibvirtVMDef.DiskDef.DiskFmtType.QCOW2);

List<UnmanagedInstanceTO.Disk> disks = wrapper.getUnmanagedInstanceDisks(List.of(glusterDisk),
libvirtComputingResource, conn, domainName);

Assert.assertEquals(1, disks.size());
Assert.assertEquals("10.0.0.5", disks.get(0).getDatastoreHost());
Assert.assertEquals("/vol1", disks.get(0).getDatastorePath());
Mockito.verify(libvirtComputingResource).getSourceHostPath("vol1");
}

@Test
public void testRbdDiskIsNotResolvedThroughMountLookup() throws Exception {
LibvirtComputingResource libvirtComputingResource = Mockito.mock(LibvirtComputingResource.class);
Connect conn = Mockito.mock(Connect.class);
Domain domain = Mockito.mock(Domain.class);
String domainName = "i-2-35-VM";
Mockito.when(conn.domainLookupByName(domainName)).thenReturn(domain);
Mockito.when(domain.blockInfo(Mockito.anyString())).thenReturn(Mockito.mock(DomainBlockInfo.class));

LibvirtVMDef.DiskDef rbdDisk = new LibvirtVMDef.DiskDef();
String imageName = "230e1224-f7b7-4dfc-97a7-3a0752636a31";
rbdDisk.defNetworkBasedDisk("cloudstack/" + imageName, "192.168.55.201", 6789, null, null, 0,
LibvirtVMDef.DiskDef.DiskBus.VIRTIO, LibvirtVMDef.DiskDef.DiskProtocol.RBD,
LibvirtVMDef.DiskDef.DiskFmtType.RAW);

List<UnmanagedInstanceTO.Disk> disks = wrapper.getUnmanagedInstanceDisks(List.of(rbdDisk),
libvirtComputingResource, conn, domainName);

Assert.assertEquals(1, disks.size());
UnmanagedInstanceTO.Disk disk = disks.get(0);
Assert.assertEquals("192.168.55.201", disk.getDatastoreHost());
Assert.assertEquals("cloudstack", disk.getDatastorePath());
Assert.assertEquals("cloudstack", disk.getDatastoreName());
Assert.assertEquals("network", disk.getDatastoreType());
Assert.assertEquals("cloudstack/" + imageName, disk.getImagePath());
Assert.assertEquals(imageName, disk.getFileBaseName());
Mockito.verify(libvirtComputingResource, Mockito.never()).getSourceHostPath(Mockito.anyString());
}
}
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