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eStatus: DRAFT
Policy Framework:
1. High Level Component Definition and Architectural Relationships
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2. API Definitions
2a. Exposed APIs
| Interface Name | Definition | Capabilities | Version | Status | Payload Model(s) |
|---|---|---|---|---|---|
| POE-1 | Policy Type Design | Allows applications to create, update, delete, and query PolicyType entities so that they become available for use in ONAP by applications such as CLAMP. | 1.0.0 | production | tosca.policies.root |
| POE-2 | Policy Design | Allows applications (such as CLAMP and Integration) to create, update, delete, and query Policy entities. | 1.0.0 | production | tosca.policies.root |
| POE-3 | Policy Administration | Support CRUD of PDP groups and subgroups and to support the deployment and life cycles of PolicyImpl entities (TOSCA Policy and PolicyTypeImpl entities) on PDP sub groups and PDPs. | 1.0.0 | production | Embedded |
| POE-4 | Data Ingress | Listen on a DMaaP topic. | production | Messages of interest are described in the policy logic DMaaP | |
| POE-5 | Decision Query | Policy decisions are required by ONAP components to support the policy-driven ONAP architecture. Policy Decisions are implemented using the XACML PDPand Apex PDPs. The calling application (which may be another policy – e.g. invocation of a guard policy from PDP-D) must provide attributes in order for the XACML PDP to return a correct decision. | NA | production | Defined by policy |
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The ONAP Policy Framework is a comprehensive policy design, deployment, and execution environment. The Policy Framework is the decision making component in an ONAP system. It allows you to specify, deploy, and execute the governance of the features and functions in your ONAP system, be they closed loop, orchestration, or more traditional open loop use case implementations. The Policy Framework is the component that is the source of truth for all policy decisions
Please see the TOSCA Policy Primer page for an introduction to TOSCA policy concepts. See the Policy Design and API flow page for a description of the component interactions.
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Policy Decision Execution is where policy decisions are made, i.e. where the policy logic executes. Three languages are used to describe policies in ONAP: XACML; Drools; APEX. Policy designers may select the language that is most appropriate to their use case. The policies are interpreted and executed by a language specific PDP. Where necessary additional PDP may be added, thus allowing for new policy languages.
Policy Enforcement is in general not handled by the Policy Framework. Enforcement is handled by either the originator of a decision query (PDP-D does enforce guard policy decisions made in the XACML PDP), or by a reaction to a policy output (trigger).
4. Known System Limitations
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