Package ganeti :: Module config

Module config

Configuration management for Ganeti

This module provides the interface to the Ganeti cluster configuration.

The configuration data is stored on every node but is updated on the master only. After each update, the master distributes the data to the other nodes.

Currently, the data storage format is JSON. YAML was slow and consuming too much memory.

Classes

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TemporaryReservationManager
A temporary resource reservation manager.

ConfigWriter
The interface to the cluster configuration.

Functions

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_ValidateConfig(data)
Verifies that a configuration objects looks valid.

source code

_MatchNameComponentIgnoreCase(short_name, names)
Wrapper around utils.text.MatchNameComponent.

source code

Variables

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_config_lock = locking.SharedLock("ConfigWriter")

_UPGRADE_CONFIG_JID = "jid-cfg-upgrade"

Imports: os, random, logging, time, itertools, errors, locking, utils, constants, rpc, objects, serializer, uidpool, netutils, runtime

Function Details

[hide private]

_ValidateConfig(data)

source code

Verifies that a configuration objects looks valid.

This only verifies the version of the configuration.

Raises:

errors.ConfigurationError - if the version differs from what we expect