ChaosTargetFilter Class

Defines all filters for targeted Chaos faults, for example, faulting only certain node types or faulting only certain applications. If ChaosTargetFilter is not used, Chaos faults all cluster entities. If ChaosTargetFilter is used, Chaos faults only the entities that meet the ChaosTargetFilter specification. NodeTypeInclusionList and ApplicationInclusionList allow a union semantics only. It is not possible to specify an intersection of NodeTypeInclusionList and ApplicationInclusionList. For example, it is not possible to specify "fault this application only when it is on that node type." Once an entity is included in either NodeTypeInclusionList or ApplicationInclusionList, that entity cannot be excluded using ChaosTargetFilter. Even if applicationX does not appear in ApplicationInclusionList, in some Chaos iteration applicationX can be faulted because it happens to be on a node of nodeTypeY that is included in NodeTypeInclusionList. If both NodeTypeInclusionList and ApplicationInclusionList are null or empty, an ArgumentException is thrown.

Constructor

ChaosTargetFilter(*, node_type_inclusion_list=None, application_inclusion_list=None, **kwargs)

Parameters

Name	Description
node_type_inclusion_list Required	list[str] A list of node types to include in Chaos faults. All types of faults (restart node, restart code package, remove replica, restart replica, move primary, and move secondary) are enabled for the nodes of these node types. If a node type (say NodeTypeX) does not appear in the NodeTypeInclusionList, then node level faults (like NodeRestart) will never be enabled for the nodes of NodeTypeX, but code package and replica faults can still be enabled for NodeTypeX if an application in the ApplicationInclusionList. happens to reside on a node of NodeTypeX. At most 100 node type names can be included in this list, to increase this number, a config upgrade is required for MaxNumberOfNodeTypesInChaosEntityFilter configuration.
application_inclusion_list Required	list[str] A list of application URIs to include in Chaos faults. All replicas belonging to services of these applications are amenable to replica faults (restart replica, remove replica, move primary, and move secondary) by Chaos. Chaos may restart a code package only if the code package hosts replicas of these applications only. If an application does not appear in this list, it can still be faulted in some Chaos iteration if the application ends up on a node of a node type that is included in NodeTypeInclusionList. However, if applicationX is tied to nodeTypeY through placement constraints and applicationX is absent from ApplicationInclusionList and nodeTypeY is absent from NodeTypeInclusionList, then applicationX will never be faulted. At most 1000 application names can be included in this list, to increase this number, a config upgrade is required for MaxNumberOfApplicationsInChaosEntityFilter configuration.

Keyword-Only Parameters

Name	Description
node_type_inclusion_list	Default value: None
application_inclusion_list	Default value: None

Methods

as_dict	Return a dict that can be JSONify using json.dump. Advanced usage might optionally use a callback as parameter: Key is the attribute name used in Python. Attr_desc is a dict of metadata. Currently contains 'type' with the msrest type and 'key' with the RestAPI encoded key. Value is the current value in this object. The string returned will be used to serialize the key. If the return type is a list, this is considered hierarchical result dict. See the three examples in this file: attribute_transformer full_restapi_key_transformer last_restapi_key_transformer If you want XML serialization, you can pass the kwargs is_xml=True.
deserialize	Parse a str using the RestAPI syntax and return a model.
enable_additional_properties_sending
from_dict	Parse a dict using given key extractor return a model. By default consider key extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor and last_rest_key_case_insensitive_extractor)
is_xml_model
serialize	Return the JSON that would be sent to azure from this model. This is an alias to as_dict(full_restapi_key_transformer, keep_readonly=False). If you want XML serialization, you can pass the kwargs is_xml=True.
validate	Validate this model recursively and return a list of ValidationError.

as_dict

Return a dict that can be JSONify using json.dump.

Advanced usage might optionally use a callback as parameter:

Key is the attribute name used in Python. Attr_desc is a dict of metadata. Currently contains 'type' with the msrest type and 'key' with the RestAPI encoded key. Value is the current value in this object.

The string returned will be used to serialize the key. If the return type is a list, this is considered hierarchical result dict.

See the three examples in this file:

• attribute_transformer

• full_restapi_key_transformer

• last_restapi_key_transformer

If you want XML serialization, you can pass the kwargs is_xml=True.

as_dict(keep_readonly=True, key_transformer=<function attribute_transformer>, **kwargs)

Parameters

Name	Description
key_transformer	<xref:function> A key transformer function.
keep_readonly	Default value: True

Returns

Type	Description
dict	A dict JSON compatible object

deserialize

Parse a str using the RestAPI syntax and return a model.

deserialize(data, content_type=None)

Parameters

Name	Description
data Required	str A str using RestAPI structure. JSON by default.
content_type	str JSON by default, set application/xml if XML. Default value: None

Returns

Type	Description
	An instance of this model

Exceptions

Type	Description
DeserializationError if something went wrong

enable_additional_properties_sending

enable_additional_properties_sending()

from_dict

Parse a dict using given key extractor return a model.

By default consider key extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor and last_rest_key_case_insensitive_extractor)

from_dict(data, key_extractors=None, content_type=None)

Parameters

Name	Description
data Required	dict A dict using RestAPI structure
content_type	str JSON by default, set application/xml if XML. Default value: None
key_extractors	Default value: None

Returns

Type	Description
	An instance of this model

Exceptions

Type	Description
DeserializationError if something went wrong

is_xml_model

is_xml_model()

serialize

Return the JSON that would be sent to azure from this model.

This is an alias to as_dict(full_restapi_key_transformer, keep_readonly=False).

If you want XML serialization, you can pass the kwargs is_xml=True.

serialize(keep_readonly=False, **kwargs)

Parameters

Name	Description
keep_readonly	bool If you want to serialize the readonly attributes Default value: False

Returns

Type	Description
dict	A dict JSON compatible object

validate

Validate this model recursively and return a list of ValidationError.

validate()

Returns

Type	Description
list	A list of validation error