Package ganeti :: Package masterd :: Module instance

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Module instance

Instance-related functions and classes for masterd.

Classes

_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

FormatProgress(progress)
Formats progress information for user consumption

source code

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

source code

list

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

source code

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

source code

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

source code

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

source code

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

source code

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

source code

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

source code

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

source code

CalculateGroupIPolicy(cluster, group)
Calculate instance policy for group.

source code

ComputeDiskSize(disks)
Compute disk size requirements according to disk template

source code

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

Function Details

_GetInstDiskMagic(base, instance_name, index)

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_uuid, dest_node_uuid, dest_ip, compress, instance, all_transfers)

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

Parameters:

lu - Logical unit instance
feedback_fn - Feedback function
src_node_uuid (string) - Source node UUID
dest_node_uuid (string) - Destination node UUID
dest_ip (string) - IP address of destination node
compress (string) - Compression tool to use
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

RemoteImport(lu, feedback_fn, instance, pnode, source_x509_ca, cds, compress, timeouts)

Imports an instance from another cluster.

Parameters:

lu - Logical unit instance
feedback_fn - Feedback function
instance (objects.Instance) - Instance object
pnode (objects.Node) - Primary node of instance as an object
source_x509_ca (OpenSSL.crypto.X509) - Import source's X509 CA
cds (string) - Cluster domain secret
compress (string) - Compression tool to use
timeouts (ImportExportTimeouts) - Timeouts for this import

_GetImportExportHandshakeMessage(version)

Returns the handshake message for a RIE protocol version.

Parameters:

version (number)

ComputeRemoteExportHandshake(cds)

Computes the remote import/export handshake.

Parameters:

cds (string) - Cluster domain secret

CheckRemoteExportHandshake(cds, handshake)

Checks the handshake of a remote import/export.

Parameters:

cds (string) - Cluster domain secret
handshake (sequence) - Handshake sent by remote peer

_GetRieDiskInfoMessage(disk_index, host, port, magic)

Returns the hashed text for import/export disk information.

Parameters:

disk_index (number) - Index of disk (included in hash)
host (string) - Hostname
port (number) - Daemon port
magic (string) - Magic value

CheckRemoteExportDiskInfo(cds, disk_index, disk_info)

Verifies received disk information for an export.

Parameters:

cds (string) - Cluster domain secret
disk_index (number) - Index of disk (included in hash)
disk_info (sequence) - Disk information sent by remote peer

ComputeRemoteImportDiskInfo(cds, salt, disk_index, host, port, magic)

Computes the signed disk information for a remote import.

Parameters:

cds (string) - Cluster domain secret
salt (string) - HMAC salt
disk_index (number) - Index of disk (included in hash)
host (string) - Hostname
port (number) - Daemon port
magic (string) - Magic value