public override async Task <ControllerUnpublishVolumeResponse> ControllerUnpublishVolume(ControllerUnpublishVolumeRequest request, ServerCallContext context)
{
var volumeName = request.VolumeId;
//tmp fix to remove bad pvc name
if (volumeName.StartsWith("C:\\"))
{
volumeName = HypervUtils.GetFileNameWithoutExtension(volumeName);
}
if (!Guid.TryParse(request.NodeId, out var vmId))
{
throw new RpcException(new Status(StatusCode.InvalidArgument, "node id invalid"));
}
_logger.LogInformation("unpublish volume {VolumeName} from node {VMId}", volumeName, vmId);
var foundVolume = await _service.GetVolumesAsync(new HypervVolumeFilter
{
Name = volumeName
})
.FirstOrDefaultAsync(context.CancellationToken);
if (foundVolume is null)
{
throw new RpcException(new Status(StatusCode.NotFound, "volume not found"));
}
var vm = await _service.GetVirtualMachinesAsync(new HypervVirtualMachineFilter
{
Id = vmId
})
.FirstOrDefaultAsync(context.CancellationToken);
if (vm is null)
{
throw new RpcException(new Status(StatusCode.NotFound, "node not found"));
}
//todo maybe vm is deleted, spec: SHOULD return OK
await _service.DetachVolumeAsync(new HypervDetachVolumeRequest
{
VMId = vm.Id,
VolumePath = foundVolume.Path,
Host = vm.Host
}, context.CancellationToken);
var rsp = new ControllerUnpublishVolumeResponse
{
};
return(rsp);
}
public async Task read_kvp_entries(string filePath)
{
var dic = new Dictionary <string, string>();
await foreach (var entry in HypervUtils.ReadKvpPoolAsync(filePath))
{
dic[entry.Name] = entry.Value;
}
Assert.Contains("VirtualMachineId", (IDictionary <string, string>)dic);
Assert.Contains("VirtualMachineName", (IDictionary <string, string>)dic);
Assert.Contains("PhysicalHostNameFullyQualified", (IDictionary <string, string>)dic);
}
public override async Task <NodeGetInfoResponse> NodeGetInfo(NodeGetInfoRequest request, ServerCallContext context)
{
//KVP daemon for KVP transfers to and from the host
//centos: sudo yum install -y hyperv-daemons
//read hostname from kvp values
//strings /var/lib/hyperv/.kvp_pool_3|sed -n '/PhysicalHostNameFullyQualified/ {n;p}'
//KVP byte array of fix sized fields key:512,value:2048 /0 filled
//The byte array contains a UTF-8 encoded string,
//which is padded out to the max size with null characters.
//However, null string termination is not guaranteed (see kvp_send_key).
//https://stackoverflow.com/questions/17530460/code-sample-for-reading-values-from-hyper-v-kvp-component-on-linux-aka-kvp-data
var vmId = string.Empty;
await foreach (var entry in HypervUtils.ReadKvpPoolAsync().WithCancellation(context.CancellationToken))
{
switch (entry.Name)
{
case "VirtualMachineId":
vmId = entry.Value;
break;
//case "VirtualMachineName":
//case "PhysicalHostNameFullyQualified":
default:
break;
}
}
if (string.IsNullOrEmpty(vmId))
{
throw new RpcException(new Status(StatusCode.InvalidArgument, string.Empty),
"hyperv kvp could not be read");
}
var rsp = new NodeGetInfoResponse
{
NodeId = vmId,
//todo MaxVolumesPerNode = 4*64 -1 //todo query by lsscsi
//maybe AccessibleTopology from FailoverCluster query
};
return(rsp);
}
public override async Task <DeleteVolumeResponse> DeleteVolume(DeleteVolumeRequest request, ServerCallContext context)
{
var volumeName = request.VolumeId;
//tmp fix to remove bad pvc name
if (volumeName.StartsWith("C:\\"))
{
volumeName = HypervUtils.GetFileNameWithoutExtension(volumeName);
}
_logger.LogInformation("delete volume {VolumeName}", volumeName);
var foundVolumes = await _service.GetVolumesAsync(new HypervVolumeFilter { Name = volumeName })
.ToListAsync(context.CancellationToken);
if (foundVolumes.Count > 1)
{
throw new RpcException(new Status(StatusCode.AlreadyExists, "volume id ambiguous"));
}
if (foundVolumes.Count == 1)
{
var volume = await _service.GetVolumeAsync(foundVolumes[0].Path, context.CancellationToken);
if (volume.Attached)
{
throw new RpcException(new Status(StatusCode.FailedPrecondition, "volume attached"));
}
//todo snapshot/parent check
await _service.DeleteVolumeAsync(new HypervDeleteVolumeRequest
{
Id = volume.Id,
Path = volume.Path
},
context.CancellationToken);
}
return(new DeleteVolumeResponse());
}
public async Task GetDeviceByVhdIdAsync(string hostName, Guid vhdId)
{
var power = Fixture.GetPower(hostName);
Command cmd;
var commands = new List <Command>(2);
var diskFilter = HypervUtils.GetDiskFilter(vhdId);
cmd = new Command("Get-ChildItem");
cmd.Parameters.Add("Path", diskFilter);
commands.Add(cmd);
cmd = new Command("Select-Object");
cmd.Parameters.Add("Property", new [] { "Directory", "Target" });
commands.Add(cmd);
//hack until Join-Path in pipe
dynamic obj = await power.InvokeAsync(commands).ThrowOnError()
.FirstOrDefaultAsync();
var blockDeviceName = string.Empty;
if (obj is not null)
{
commands.Clear();
cmd = new Command("Join-Path");
cmd.Parameters.Add("Path", obj.Directory);
cmd.Parameters.Add("ChildPath", obj.Target);
cmd.Parameters.Add("Resolve");
commands.Add(cmd);
blockDeviceName = await power.InvokeAsync(commands).ThrowOnError()
.Select(n => (string)n.BaseObject)
.FirstOrDefaultAsync();
}
Assert.StartsWith("/dev/", blockDeviceName);
}
public async Task MountDeviceAsync(HypervNodeMountRequest request, CancellationToken cancellationToken = default)
{
using var scope = _logger.BeginScope("mounting {VolumeName}", request.Name);
Command cmd;
var commands = new List <Command>(4);
var blockDeviceName = string.Empty;
if (request.VhdId != Guid.Empty)
{
var diskFilter = HypervUtils.GetDiskFilter(request.VhdId);
cmd = new Command("Get-ChildItem");
cmd.Parameters.Add("Path", diskFilter);
commands.Add(cmd);
cmd = new Command("Select-Object");
cmd.Parameters.Add("Property", new[] { "Directory", "Target" });
commands.Add(cmd);
//hack until Join-Path in pipe
dynamic obj = await _power.InvokeAsync(commands).ThrowOnError()
.FirstOrDefaultAsync();
if (obj is not null)
{
commands.Clear();
cmd = new Command("Join-Path");
cmd.Parameters.Add("Path", obj.Directory);
cmd.Parameters.Add("ChildPath", obj.Target);
cmd.Parameters.Add("Resolve");
commands.Add(cmd);
blockDeviceName = await _power.InvokeAsync(commands).ThrowOnError()
.Select(n => (string)n.BaseObject)
.FirstOrDefaultAsync();
}
}
if (string.IsNullOrEmpty(blockDeviceName))
{
//over controller number
commands.Clear();
cmd = new Command("lsblk -S -o 'HCTL,NAME' -nr", true);
commands.Add(cmd);
var hctl = $"{request.ControllerNumber}:0:0:{request.ControllerLocation}";
var deviceInfo = await _power.InvokeAsync(commands).ThrowOnError()
.Select((dynamic n) => (string[])n.Split(" ", 2, StringSplitOptions.RemoveEmptyEntries))
.Where(n => n.Length == 2 && n[0] == hctl)
.Select(n => new
{
hctl = n[0],
name = n[1]
})
.FirstOrDefaultAsync(cancellationToken);
if (deviceInfo is null)
{
throw new Exception($"device[{hctl}] not found");
}
blockDeviceName = $"/dev/{deviceInfo.name}";
}
if (string.IsNullOrEmpty(blockDeviceName))
{
throw new Exception($"block device not found");
}
//todo check name of blockDeviceName
_logger.LogDebug("BlockDevice '{BlockDeviceName}' found", blockDeviceName);
if (request.Raw)
{
throw new NotImplementedException("raw block device not implemented");
}
commands.Clear();
var deviceName = $"{blockDeviceName}1";
var deviceLabel = string.Empty;
var deviceUUID = string.Empty;
var deviceFSType = string.Empty;
cmd = new Command($"blkid -o export -c /dev/null {deviceName}", true);
commands.Add(cmd);
//BLKID_EXIT_NOTFOUND=2
/*
* DEVNAME=/dev/sdb1
* LABEL=pvc-5a344250-ca2
* UUID=978388ae-6a2e-479a-8658-48ea495adda3
* TYPE=ext4
* PARTLABEL=primary
* PARTUUID=90580121-4dd5-485a-9d07-e20b73cba4bf
*/
await foreach (var line in _power.InvokeAsync(commands).ThrowOnError()
.Select(n => n.BaseObject).OfType <string>()
.TakeWhile(n => !string.IsNullOrEmpty(n))
.WithCancellation(cancellationToken))
{
var name = line;
var value = string.Empty;
int i = line.IndexOf('=');
if (i > -1)
{
name = line.Substring(0, i);
value = line.Substring(i + 1);
}
switch (name)
{
case "DEVNAME" when deviceName != value:
throw new Exception("invalid device info");
case "LABEL":
deviceLabel = value;
break;
case "UUID":
deviceUUID = value;
break;
case "TYPE":
deviceFSType = value;
break;
}
}
//_logger.LogDebug("{@Device}", deviceLabel);
//invalid device mount protection
if (request.ValidateLabel && !string.IsNullOrEmpty(deviceLabel) && !request.Name.StartsWith(deviceLabel))
{
throw new Exception("device label ambiguous");
}
//todo select multiple partitions
var fsType = !string.IsNullOrEmpty(request.FSType) ? request.FSType : "ext4";
var setPermissions = false;
if (string.IsNullOrEmpty(deviceUUID))
{
_logger.LogInformation("creating partition on {BlockDeviceName} with {FSType}", blockDeviceName, deviceFSType);
commands.Clear();
//parted /dev/sdb --script mklabel gpt
//parted /dev/sdb --script mkpart primary ext4 0% 100%
var script = $"parted --align=opt {blockDeviceName} --script mklabel gpt mkpart primary {fsType} 1MiB 100%";
cmd = new Command(script, true);
commands.Add(cmd);
var result = await _power.InvokeAsync(commands).ThrowOnError().ToListAsync(cancellationToken);
}
if (string.IsNullOrEmpty(deviceFSType))
{
_logger.LogInformation("creating filesystem on {deviceName} with {FSType}", deviceName, deviceFSType);
commands.Clear();
deviceLabel = request.Name ?? string.Empty;
//labels are max 16-chars long (maybe for xfs max 12)
if (deviceLabel.Length > 16)
{
deviceLabel = deviceLabel.Substring(0, 16);
}
//mkfs -t ext4 -G 4096 -L volume-test /dev/sdb1
//maybe add -G 4096
cmd = new Command($"& mkfs -t {fsType} -L \"{deviceLabel}\" {deviceName} 2>&1", true);
commands.Add(cmd);
//cmd = new Command("Out-String");
////cmd.Parameters.Add("NoNewline");
//commands.Add(cmd);
var results = await _power.InvokeAsync(commands)
.ThrowOnError(error => !error.Exception.Message.StartsWith("mke2fs"))
.ToListAsync(cancellationToken);
deviceFSType = fsType;
setPermissions = true;
}
if (deviceFSType != fsType)
{
throw new Exception("fsType ambiguous");
}
_logger.LogDebug("try to find mount {DeviceName} to {TargetPath}", deviceName, request.TargetPath);
commands.Clear();
cmd = new Command($"findmnt -fnr {deviceName} {request.TargetPath}", true);
commands.Add(cmd);
///tmp/testdrive /dev/sdb1 ext4 rw,noatime,seclabel,discard
var mountpoint = await _power.InvokeAsync(commands).ThrowOnError()
.Select(n => n.BaseObject).OfType <string>()
.FirstOrDefaultAsync(cancellationToken);
if (string.IsNullOrEmpty(mountpoint))
{
_logger.LogDebug("create {TargetPath}", request.TargetPath);
commands.Clear();
cmd = new Command("New-Item");
cmd.Parameters.Add("ItemType", "directory");
cmd.Parameters.Add("Path", request.TargetPath);
cmd.Parameters.Add("ErrorAction", "SilentlyContinue");
commands.Add(cmd);
_ = await _power.InvokeAsync(commands).ThrowOnError()
.FirstOrDefaultAsync(cancellationToken);
_logger.LogInformation("mounting {DeviceName} to {TargetPath}", deviceName, request.TargetPath);
commands.Clear();
var options = new HashSet <string> {
"discard", "noatime"
};
foreach (var opt in (request.Options ?? Array.Empty <string>()))
{
options.Add(opt);
}
if (request.Readonly)
{
options.Add("ro");
}
//mount -o "discard,noatime,ro" /dev/sdb1 /drivetest
cmd = new Command($"mkdir -p {request.TargetPath} && mount -o \"{string.Join(",", options)}\" {deviceName} {request.TargetPath}", true);
commands.Add(cmd);
//Labels are normaly only 16-chars long
//Warning: label too long; will be truncated to 'pvc-5a344250-ca2'
_ = await _power.InvokeAsync(commands).ThrowOnError()
.ToListAsync(cancellationToken);
mountpoint = request.TargetPath;
}
if (!setPermissions)
{
_logger.LogDebug("empty check of {Mountpoint}", mountpoint);
commands.Clear();
cmd = new Command("Get-ChildItem");
cmd.Parameters.Add("Path", request.TargetPath);
commands.Add(cmd);
try
{
var hasFiles = await _power.InvokeAsync(commands).ThrowOnError()
.AnyAsync((dynamic n) => n.Name switch
{
"lost+found" => false,
_ => true
}, cancellationToken);
setPermissions = !hasFiles;
}
// This method gets called by the runtime. Use this method to add services to the container.
// For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
public void ConfigureServices(IServiceCollection services)
{
services.AddOptions <HypervCsiDriverOptions>()
.Bind(Configuration.GetSection("Driver"))
.PostConfigure(opt =>
{
switch (opt.Type)
{
case HypervCsiDriverType.Controller:
//load hyperv host from kvp
if (string.IsNullOrEmpty(opt.HostName))
{
var(_, value) = HypervUtils.ReadKvpPoolAsync()
.FirstOrDefaultAsync(n => n.Name == "PhysicalHostNameFullyQualified")
.Result;
if (!string.IsNullOrEmpty(value))
{
opt.HostName = value;
}
if (string.IsNullOrEmpty(opt.UserName))
{
opt.UserName = "******"; //aka windows root
}
}
break;
}
})
.Validate(opt =>
{
switch (opt.Type)
{
case HypervCsiDriverType.Controller:
if (string.IsNullOrEmpty(opt.HostName))
{
return(false);
}
return(true);
case HypervCsiDriverType.Node:
return(true);
default:
return(false);
}
});
var driverType = Configuration.GetValue <HypervCsiDriverType>("Driver:Type");
switch (driverType)
{
case HypervCsiDriverType.Controller:
services.AddSingleton <IHypervVolumeService, HypervVolumeService>();
break;
case HypervCsiDriverType.Node:
services.AddSingleton <IHypervNodeService, LinuxNodeService>();
break;
}
services.AddGrpc();
}
public async Task create_disk_filter(Guid vhdId, string diskFilter)
{
var r = HypervUtils.GetDiskFilter(vhdId);
Assert.Equal(diskFilter, r);
}
public async Task can_parse_storage_name_from_win_file_name(string filePath, string storageName)
{
var r = HypervUtils.GetStorageNameFromPath(filePath);
Assert.Equal(storageName, r);
}
public async Task can_parse_win_file_name(string filePath, string fileName)
{
var r = HypervUtils.GetFileNameWithoutExtension(filePath);
Assert.Equal(fileName, r);
}
