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The DCAE Participant runs DCAE Control Loop Elements. Each DCAE Control Loop Element manages a DCAE microservice on DCAE. The user defines the DCAE blueprint for the DCAE microservice as well as other properties that the microservice requires in order to execute. The Yaml file that holds the <INSERT LINK HERE WHEN IT IS MERGED> is available in Github and is the canonical definition of the DCAE Control Loop Element type. For a description of the DCAE Control Loop Element and DCAE Participant, please see The CLAMP DCAE Participant page.
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2 Common and Instance Specific Properties
Properties are used to define the configuration for Control Loops and Control Loop Elements. At design time, the types, constraints, and descriptions of the properties are specified. The values for properties are specified in the CLAMP GUI at runtime. TOSCA provides support fir defining properties, see TOSCA Property Definition in the TOSCA documentation.
2.1 Terminology for Properties
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Property: Metadata defined in TOSCA that is associated with a Control Loop, a Control Loop Element, or a Participant.
TOSCA Property Type: The TOSCA defintion definition of the type of a property. A property can have a generic type such as string or integer or can have a user defined TOSCA data type.
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Instance Specific Property Value: The value of a Property Type that applies to an individual instance of a Control Loop Type. The value is assigned at run time for each control loop instance.
node_templates which makes up the loop itself.
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| Warning |
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Updated for Istanbul to this point, the material below may or may not be correct. |
1. Control Loop TOSCA file definition
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The loop definition is explicit in the node_templates within the topology_template, a Control Loop node template is specified and any node tempalte template specified in the Control Loop node tepolcate node template is part of the control loop managed by CLAMP.
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