ganeti.objects.InstancePolicy

class documentation

class InstancePolicy(ConfigObject):

Config object representing instance policy limits dictionary.

Note that this object is not actually used in the config, it's just used as a placeholder for a few functions.

Class Method	`CheckDiskTemplates`	Checks the disk templates for validity.
Class Method	`CheckISpecSyntax`	Check the instance policy specs for validity.
Class Method	`CheckParameter`	Checks a parameter.
Class Method	`CheckParameterSyntax`	Check the instance policy for validity.
Class Method	`UpgradeDiskTemplates`	Upgrades the ipolicy configuration.
Class Method	`_CheckIncompleteSpec`	Undocumented
Class Method	`_CheckISpecParamSyntax`	Check the instance policy specs for validity on a given key.

Inherited from ConfigObject:

Class Method	`FromDict`	Create an object from a dictionary.
Method	`__getattr__`	Undocumented
Method	`__repr__`	Implement __repr__ for ConfigObjects.
Method	`__setstate__`	Undocumented
Method	`Copy`	Makes a deep copy of the current object and its children.
Method	`ToDict`	Convert to a dict holding only standard python types.
Method	`UpgradeConfig`	Fill defaults for missing configuration values.
Method	`Validate`	Validates the slots.
Class Variable	`__slots__`	Undocumented

Inherited from ValidatedSlots (via ConfigObject):

Class Method	`GetAllSlots`	Compute the list of all declared slots for a class.
Method	`__init__`	Constructor for BaseOpCode.

@classmethod
def CheckDiskTemplates(cls, disk_templates): ¶

Checks the disk templates for validity.

@classmethod
def CheckISpecSyntax(cls, ipolicy, check_std): ¶

Check the instance policy specs for validity.

Parameters
ipolicy:dict	dictionary with min/max/std specs
check_std:bool	Whether to check std value or just assume compliance
Raises
`errors.ConfigurationError`	when specs are not valid

@classmethod
def CheckParameter(cls, key, value): ¶

Checks a parameter.

Currently we expect all parameters to be float values.

@classmethod
def CheckParameterSyntax(cls, ipolicy, check_std): ¶

Check the instance policy for validity.

Parameters
ipolicy:dict	dictionary with min/max/std specs and policies
check_std:bool	Whether to check std value or just assume compliance
Raises
`errors.ConfigurationError`	when the policy is not legal

@classmethod
def UpgradeDiskTemplates(cls, ipolicy, enabled_disk_templates): ¶

Upgrades the ipolicy configuration.

@classmethod
def _CheckIncompleteSpec(cls, spec, keyname): ¶

Undocumented

@classmethod
def _CheckISpecParamSyntax(cls, minmaxspecs, stdspec, name, check_std): ¶

Check the instance policy specs for validity on a given key.

We check if the instance specs makes sense for a given key, that is if minmaxspecs[min][name] <= stdspec[name] <= minmaxspec[max][name].

Parameters
minmaxspecs:dict	dictionary with min and max instance spec
stdspec:dict	dictionary with standard instance spec
name:string	what are the limits for
check_std:bool	Whether to check std value or just assume compliance
Returns
bool	`True` when specs are valid, `False` when standard spec for the given name is not valid
Raises
`errors.ConfigurationError`	when min/max specs for the given name are not valid