Package ganeti :: Package masterd :: Module instance

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Module instance

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Instance-related functions and classes for masterd.

Classes

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_ImportExportError
Local exception to report import/export errors.

ImportExportTimeouts

ImportExportCbBase
Callbacks for disk import/export.

_DiskImportExportBase

DiskImport

DiskExport

ImportExportLoop

_TransferInstCbBase

_TransferInstSourceCb

_TransferInstDestCb

DiskTransfer

_DiskTransferPrivate

_RemoteExportCb

ExportInstanceHelper

_RemoteImportCb

Functions

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_TimeoutExpired(epoch, timeout, _time_fn=time.time)
Checks whether a timeout has expired.

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FormatProgress(progress)
Formats progress information for user consumption

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_GetInstDiskMagic(base, instance_name, index)
Computes the magic value for a disk export or import.

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list

TransferInstanceData(lu, feedback_fn, src_node, dest_node, dest_ip, instance, all_transfers)
Transfers an instance's data from one node to another.

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RemoteImport(lu, feedback_fn, instance, source_x509_ca, cds, timeouts)
Imports an instance from another cluster.

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_GetImportExportHandshakeMessage(version)
Returns the handshake message for a RIE protocol version.

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ComputeRemoteExportHandshake(cds)
Computes the remote import/export handshake.

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CheckRemoteExportHandshake(cds, handshake)
Checks the handshake of a remote import/export.

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_GetRieDiskInfoMessage(disk_index, host, port, magic)
Returns the hashed text for import/export disk information.

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CheckRemoteExportDiskInfo(cds, disk_index, disk_info)
Verifies received disk information for an export.

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ComputeRemoteImportDiskInfo(cds, salt, disk_index, host, port, magic)
Computes the signed disk information for a remote import.

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Imports: logging, time, OpenSSL, constants, errors, compat, utils, objects, netutils

Function Details

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_GetInstDiskMagic(base, instance_name, index)

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Computes the magic value for a disk export or import.

Parameters:

base (string) - Random seed value (can be the same for all disks of a transfer)
instance_name (string) - Name of instance
index (number) - Disk index

TransferInstanceData(lu, feedback_fn, src_node, dest_node, dest_ip, instance, all_transfers)

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Transfers an instance's data from one node to another.

Parameters:

lu - Logical unit instance
feedback_fn - Feedback function
src_node (string) - Source node name
dest_node (string) - Destination node name
dest_ip (string) - IP address of destination node
instance (objects.Instance) - Instance object
all_transfers (list of DiskTransfer instances) - List of all disk transfers to be made

Returns: list

List with a boolean (True=successful, False=failed) for success for each transfer