Package ganeti :: Module ovf

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Module ovf

source code

Converter tools between ovf and ganeti config file

Classes

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OVFReader
Reader class for OVF files.

OVFWriter
Writer class for OVF files.

Converter
Converter class for OVF packages.

OVFImporter
Converter from OVF to Ganeti config file.

ConfigParserWithDefaults
This is just a wrapper on SafeConfigParser, that uses default values

OVFExporter
Converter from Ganeti config file to OVF

Functions

[hide private]

CheckQemuImg()
Make sure that qemu-img is present before performing operations.

source code

LinkFile(old_path, prefix=None, suffix=None, directory=None)
Create link with a given prefix and suffix.

source code

SubElementText(parent, tag, text, attrib={}, **extra)
This is just a wrapper on ET.SubElement that always has text content.

source code

Variables

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ParseError = None

GANETI_SCHEMA = "http://ganeti"

OVF_SCHEMA = "http://schemas.dmtf.org/ovf/envelope/1"

RASD_SCHEMA = "http://schemas.dmtf.org/wbem/wscim/1/cim-schema...

VSSD_SCHEMA = "http://schemas.dmtf.org/wbem/wscim/1/cim-schema...

XML_SCHEMA = "http://www.w3.org/2001/XMLSchema-instance"

OVA_EXT = ".ova"

OVF_EXT = ".ovf"

MF_EXT = ".mf"

CERT_EXT = ".cert"

COMPRESSION_EXT = ".gz"

FILE_EXTENSIONS = [OVF_EXT, MF_EXT, CERT_EXT,]

COMPRESSION_TYPE = "gzip"

NO_COMPRESSION = [None, "identity"]

COMPRESS = "compression"

DECOMPRESS = "decompression"

ALLOWED_ACTIONS = [COMPRESS, DECOMPRESS]

VMDK = "vmdk"

RAW = "raw"

COW = "cow"

ALLOWED_FORMATS = [RAW, COW, VMDK]

RASD_TYPE = {"vcpus": "3", "memory": "4", "scsi-controller": "...

SCSI_SUBTYPE = "lsilogic"

VS_TYPE = {"ganeti": "ganeti-ovf", "external": "vmx-04",}

ALLOCATION_UNITS = {"b": ["bytes", "b"], "kb": ["kilobytes", "...

CONVERT_UNITS_TO_MB = {"b": lambda x: x/(1024* 1024), "kb": la...

NAME = "name"

OS = "os"

HYPERV = "hypervisor"

VCPUS = "vcpus"

MEMORY = "memory"

AUTO_BALANCE = "auto_balance"

DISK_TEMPLATE = "disk_template"

TAGS = "tags"

VERSION = "version"

INSTANCE_ID = {"system": 0, "vcpus": 1, "memory": 2, "scsi": 3,}

DISK_FORMAT = {RAW: "http://en.wikipedia.org/wiki/Byte", VMDK:...

Imports: ConfigParser, errno, logging, os, re, shutil, tarfile, tempfile, xml, ET, constants, errors, utils, pathutils

Function Details

[hide private]

CheckQemuImg()

source code

Make sure that qemu-img is present before performing operations.

Raises:

errors.OpPrereqError - when qemu-img was not found in the system

LinkFile(old_path, prefix=None, suffix=None, directory=None)

source code

Create link with a given prefix and suffix.

This is a wrapper over os.link. It tries to create a hard link for given file, but instead of rising error when file exists, the function changes the name a little bit.

Parameters:

old_path (string) - path to the file that is to be linked
prefix (string) - prefix of filename for the link
suffix (string) - suffix of the filename for the link
directory (string) - directory of the link

Raises:

errors.OpPrereqError - when error on linking is different than "File exists"

Variables Details

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RASD_SCHEMA

Value:

"http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/" "CIM_ResourceAllo
cationSettingData"

VSSD_SCHEMA

Value:

"http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/" "CIM_VirtualSyste
mSettingData"

RASD_TYPE

Value:

{"vcpus": "3", "memory": "4", "scsi-controller": "6", "ethernet-adapte
r": "10", "disk": "17",}

ALLOCATION_UNITS

Value:

{"b": ["bytes", "b"], "kb": ["kilobytes", "kb", "byte * 2^10", "kibiby
tes", "kib"], "mb": ["megabytes", "mb", "byte * 2^20", "mebibytes", "m
ib"], "gb": ["gigabytes", "gb", "byte * 2^30", "gibibytes", "gib"],}

CONVERT_UNITS_TO_MB

Value:

{"b": lambda x: x/(1024* 1024), "kb": lambda x: x/ 1024, "mb": lambda 
x: x, "gb": lambda x: x* 1024,}

DISK_FORMAT

Value:

{RAW: "http://en.wikipedia.org/wiki/Byte", VMDK: "http://www.vmware.co
m/interfaces/specifications/vmdk.html" "#monolithicSparse", COW: "http
://www.gnome.org/~markmc/qcow-image-format.html",}