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CPS-333
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Getting issue details...
STATUS
Open Issues & Decisions
# | Description | Notes | Decision |
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1 | How to deal with hardcoded E2E NW Slicing model, spike
| Discuss with E2E NW Slicing Team | |
2 | Which Simulator to use? NetConf Simulator Netopeer v2
- Nokia
- Ericsson
| Rahul Tyagi Ericsson more lightweight, more experience. Available CSIT standard setup Need to check if we can use it with E2E NW Slicing model |
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3 | Should (ONAP) dmi-instance be as separate (springboot) application Could be part of DMI Manager | DMI-Instance interface should be an open standard | Tony Finnerty and Team to allow easy integration of future 3rd part DMI-Plugin instances a separate application with its own REST Interface is required |
Reference Material
Scenario Scope In Istanbul
There should be following functional requirements need to be fulfilled
- Add/remove *CM-Handle by using *DMI (Date Model Inventory) based on events.
- create component
- interface definition/agreement with community
- listen/filter to event
- handle add event
- handle remote event
- Pass through read and write data from application to node via ncmp using SDNC
- Sync network model and data from node to cps via ncmp
- Read cached data model or data from cps to application via ncmp
Data Model Inventory (DMI) consist out of 2 parts:
- DMI Registry
- DMI Plugin (instances) e.g. ONAP DMI-Plugin
Component Impacts; Suggested User Stories
# | Project/Component | Description | Suggested Stories | Comments |
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1 | CPS/NCMP | create rest interface on northbound for GET/POST/PUT/DELETE to access yang data. Note. Currently driven by "E2E Network Slicing" Use Case mix of CPS-CORE and NCMP Interface
| - Ensure all (CPS-Core) Read operations are mirrored
- Remove/migrate? 'hardcoded generic models used in H release"
- Spike API for Update and Delete Operations
- consider 'bypass' option
| - interfaces for yang data are: operational, intended, pass-through (selection can be done by enum)
check with netconf-sim if current nw slicing yang model can be imported including its imports.
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2 | CPS/NCMP/DMI-Registry | Create dmi-registry. Data Model Inventory Interface (DMI) 'Internal service' no public Java or REST API responsibilities are - Store & retrieve cm-handle/dmi-since mapping in yang modelled CPS data table.
- include additional data (key-value pars as provided by dmi-Plugin)
- Dmi manager is to select the dmi instance at runtime for cm handle for a northbound (write) request
| - create new module for dmi-registry
- create yang-model (ncmp-dmi-registry) in cps repository for cm-handle->dmi-pluginmapping. To store relations between cm-handle (anchor) and dmi-plugin (instances)
- Create anchor with model from step 2 in new (ncmp-admin) dataspace?!
(once upon deployment) - create API to
- create new dmi-plugin entry during registration
- create API to
- Register cm-handle->dmi-plugin entry when new cm-handle
- Get dmi-plugin for given cm-handle
- Delete cm-handle->dmi-plugin registration
- Delete dmi-plugin ? TBC
| - separate stories for data and model.
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3 | CPS/NCMP/DMI-Plugin | Common standard (REST and Java?) interface for extensibility create dmi pluginfor onap. For production its responsibility of admin to provide instance of dmi. - At first, on A&AI change event over DMaap, create mapping for cm-handle and dmi instance and sync yang model and data.
- Filter (register) only yang modelled xnf instances's cm-handle, based on event header information of Node
- dmi plugin instance (onap-dmi) have sdnc connector to access sdnc.
- call get/post/put/delete towards restconf interface (forward northbound write requests)
| - Defined and Agree common (java?) Interface
- create module dmi-onap-plugin Rest and Impl modules
- create sub-module dmi-notification-handler
- create sub-module dmi-adapters
- create sub-module dmi-rest and dmi-plugin
- create infra for separate spring boot application and docker image for dmi-plugin
| - extract dmi-plugin into separate container consensus on rest interface is needed.
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4 | CPS/NCMP | - enhance ncmp-cps interface (need to identify).
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Interfaces & APIs
# | module | rest api | java api |
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1 | onap/cps/ncmp/dmi-registry |
# | type | name | params |
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1 | POST | register_dmi_plugin | - dmi-plugin-id
- name
- adress
- other-params
| 2 | POST | create_cm_handle | - cm-handle
- dmi-plugin-id
| 3 | DELETE | delete_cm_handle | - cm-handle
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| # | method_name | params | return |
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1 | getDmiPluginByCmHandle | cm-handle | dmi-plugin-object |
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2 | onap/cps/ncmp/dmi-plugin |
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3 | onap/cps/ncmp/ncmp-rest |
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4 | onap/cps/cps-rest |
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JIRA Status Tracking
Epic:
CPS-321
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Getting issue details...
STATUS
Key
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Summary
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T
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Created
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Updated
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Due
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Assignee
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Reporter
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P
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Status
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Resolution
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Sequence diagrams
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