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Difference between revisions of "Graffiti/Directory"

(Created page with " == Graffiti Directory == A common API to "tag" and search across existing and new services for cloud content based on the metadata vocabulary, ad-hoc properties, names, and...")
 
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  A common API to "tag" and search across existing and new services for cloud content based on the metadata vocabulary, ad-hoc properties, names, and descriptions.  
 
  A common API to "tag" and search across existing and new services for cloud content based on the metadata vocabulary, ad-hoc properties, names, and descriptions.  
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See [[Graffiti/Architecture]]
  
 
=== Expanded Contextual Overlay ===
 
=== Expanded Contextual Overlay ===
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* Freeform properties (those not associated with a known namespace in the dictionary)
 
* Freeform properties (those not associated with a known namespace in the dictionary)
 
* Flat properties (those associated with a namespace, but not a capability type in the namespace)
 
* Flat properties (those associated with a namespace, but not a capability type in the namespace)
* Capabilities (instances of capability types)
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* Capabilities (instances of [[Graffiti/Dictionary#Capability_Types|capability types]])
 
* Requirements (references to required capability types as well as the constraints)
 
* Requirements (references to required capability types as well as the constraints)
  
 
For example, a resource may be of type ''volume''.  It may come from a specific Cinder endpoint registered in Keystone.  It may have the capability of a certain kind of OS and may also have MySQL on it.
 
For example, a resource may be of type ''volume''.  It may come from a specific Cinder endpoint registered in Keystone.  It may have the capability of a certain kind of OS and may also have MySQL on it.

Revision as of 23:56, 21 April 2014

Graffiti Directory

A common API to "tag" and search across existing and new services for cloud content based on the metadata vocabulary, ad-hoc properties, names, and descriptions. 

See Graffiti/Architecture

Expanded Contextual Overlay

This overlay Graffiti concepts with Graffiti components.

Graffiti-Architecture-ConceptOverlayExpanded.png

Resources

In Graffiti, resources are a common way to represent a type of resource from a given provider. They have the following:

  • Name
  • Description
  • Resource Type
  • Resource Endpoint
  • Freeform properties (those not associated with a known namespace in the dictionary)
  • Flat properties (those associated with a namespace, but not a capability type in the namespace)
  • Capabilities (instances of capability types)
  • Requirements (references to required capability types as well as the constraints)

For example, a resource may be of type volume. It may come from a specific Cinder endpoint registered in Keystone. It may have the capability of a certain kind of OS and may also have MySQL on it.