private static Task <Either <PowershellFailure, string> > JoinPathAndProject(string dsPath, string projectName)
{
var result = dsPath;
if (projectName != "default")
{
result = Path.Combine(dsPath, $"haipa_p{projectName}");
}
return(Prelude.RightAsync <PowershellFailure, string>(result).ToEither());
}
public static Task <Either <PowershellFailure, Option <VMStorageSettings> > > DetectVMStorageSettings(
Option <TypedPsObject <VirtualMachineInfo> > optionalVmInfo, HostSettings hostSettings,
Func <string, Task> reportProgress)
{
return(optionalVmInfo
.MatchAsync(
Some: s =>
{
var namesAndId = PathToStorageNames(s.Value.Path, hostSettings.DefaultDataPath);
var settings =
(from resolvedPath in ResolveStorageBasePath(namesAndId.Names, hostSettings.DefaultDataPath)
from storageSettings in ComparePath(resolvedPath, s.Value.Path,
namesAndId.StorageIdentifier)
select storageSettings);
return settings.Bind(e => e.Match(
Right: matchedPath => Prelude.RightAsync <PowershellFailure, VMStorageSettings>(
new VMStorageSettings
{
StorageNames = namesAndId.Names,
StorageIdentifier = namesAndId.StorageIdentifier,
VMPath = matchedPath,
}).ToEither(),
Left: async(l) =>
{
//current behaviour is to soft fail by disabling storage changes
//however later we should add a option to strictly fail on all operations
await reportProgress(
"Invalid machine storage settings. Storage management is disabled.");
return Prelude.Right <PowershellFailure, VMStorageSettings>(
new VMStorageSettings
{
StorageNames = namesAndId.Names,
StorageIdentifier = namesAndId.StorageIdentifier,
VMPath = s.Value.Path,
Frozen = true
}
);
})).MapAsync(r => r.ToSome().ToOption());
},
None: () => Option <VMStorageSettings> .None));
}
private static Task <Either <PowershellFailure, string> > ComparePath(string firstPath, string secondPath, Option <string> storageIdentifier)
{
return(storageIdentifier.ToEither(new PowershellFailure {
Message = "unknown VM storage identifier"
})
.BindAsync(id =>
{
var fullPath = Path.Combine(firstPath, id);
if (!secondPath.Equals(fullPath, StringComparison.InvariantCultureIgnoreCase))
{
return Prelude
.LeftAsync <PowershellFailure, string>(new PowershellFailure {
Message = "Path calculation failure"
})
.ToEither();
}
return Prelude
.RightAsync <PowershellFailure, string>(firstPath)
.ToEither();
}));
}
private static Task <Either <PowershellFailure, VMStorageSettings> > EnsureStorageId(VMStorageSettings first, VMStorageSettings second, Func <Task <Either <PowershellFailure, string> > > idGeneratorFunc)
{
if (second.Frozen)
{
return(Prelude.RightAsync <PowershellFailure, VMStorageSettings>(second).ToEither());
}
return(first.StorageIdentifier.MatchAsync(
None:
() => second.StorageIdentifier.MatchAsync(
None: idGeneratorFunc,
Some: s => Prelude.RightAsync <PowershellFailure, string>(s).ToEither()),
Some: s => Prelude.RightAsync <PowershellFailure, string>(s).ToEither()
).MapAsync(storageIdentifier =>
new VMStorageSettings
{
StorageNames = first.StorageNames,
StorageIdentifier = storageIdentifier,
VMPath = first.VMPath
}));
}
private static Task <Either <PowershellFailure, VMDriveStorageSettings> > DriveConfigToDriveStorageSettings(int index,
VirtualMachineDriveConfig driveConfig, VMStorageSettings storageSettings, HostSettings hostSettings)
{
const int controllerNumber = 0; //currently this will not be configurable, but keep it here at least as constant
var controllerLocation = index; //later, when adding controller config support, we will have to add a logic to
//set location relative to the free slots for each controller
//if it is not a vhd, we only need controller settings
if (driveConfig.Type != VirtualMachineDriveType.VHD)
{
VMDriveStorageSettings result;
if (driveConfig.Type == VirtualMachineDriveType.DVD)
{
result = new VMDVdStorageSettings
{
ControllerNumber = controllerNumber,
ControllerLocation = controllerLocation,
Type = VirtualMachineDriveType.DVD
};
}
else
{
result = new VMDriveStorageSettings
{
ControllerNumber = controllerNumber,
ControllerLocation = controllerLocation,
Type = driveConfig.Type.GetValueOrDefault(VirtualMachineDriveType.PHD)
};
}
return(Prelude.RightAsync <PowershellFailure, VMDriveStorageSettings>(result).ToEither());
}
//so far for the simple part, now the complicated case - a vhd disk...
var projectName = Prelude.Some("default");
var environmentName = Prelude.Some("default");
var dataStoreName = Prelude.Some("default");
var storageIdentifier = Option <string> .None;
var names = new StorageNames()
{
ProjectName = projectName,
EnvironmentName = environmentName,
DataStoreName = dataStoreName,
};
if (storageIdentifier.IsNone)
{
storageIdentifier = storageSettings.StorageIdentifier;
}
return
((from resolvedPath in ResolveStorageBasePath(names, hostSettings.DefaultVirtualHardDiskPath).ToAsync()
from identifier in storageIdentifier.ToEither(new PowershellFailure
{
Message = $"Unexpected missing storage identifier for disk '{driveConfig.Name}'."
})
.ToAsync()
.ToEither().ToAsync()
let planned = new VMDiskStorageSettings
{
Type = driveConfig.Type.Value,
StorageNames = names,
StorageIdentifier = storageIdentifier,
ParentPath = driveConfig.Template,
Path = Path.Combine(resolvedPath, identifier),
AttachPath = Path.Combine(Path.Combine(resolvedPath, identifier), $"{driveConfig.Name}.vhdx"),
// ReSharper disable once StringLiteralTypo
Name = driveConfig.Name,
SizeBytes = driveConfig.Size.ToOption().Match(None: () => 1 * 1024L * 1024 * 1024,
Some: s => s * 1024L * 1024 * 1024),
ControllerNumber = controllerNumber,
ControllerLocation = controllerLocation
}
select planned as VMDriveStorageSettings).ToEither());
}
public static Task <Either <Error, TIn> > ToEitherRight <TIn>(this TIn right)
{
return(Prelude.RightAsync <Error, TIn>(right).ToEither());
}