DMaaP Bus Controller Topic and Feed provisioning support via helm

This document highlights design considered for to Provision authenticated, authorized DMaaP topics on Message Router and feeds on Data Router .

Overview

Bus Controller is a RESTful web service used to provision DMaaP topics (on Message Router) and feeds (on Data Router), with associated authorization (on AAF).

Endpoints are used to provision :

• Authorized topic on MR, and to create and grant permission for Publishers and Subscribers.
• Feed on Data Router, with associated user authentication.
• Bus Controller API link : https://docs.onap.org/projects/onap-dmaap-buscontroller/en/latest/apis/api.html

Dmaap dbc-client docker Image (onap/dmaap/dbc-client:1.0.9)

This dbc-client image is utility (containing shell script) by making use of which we can initiate HTTP REST Request towards  Dmaap Bus Controller app for creating dynamic Feeds, Topics.

Design details

1. Existing design consist fo kubernetes Job Manifest which consist of onap/dmaap/dbc-client docker image for making http request toward dmaap-bc (Dmaap Bus Controller) pod.
2. In DCAE Design-1 highlighted in below pic is considered where we need to create dmmap provisionning Init-Container which will be making use of same onap/dmaap/dbc-client docker image to make Http Rest Request towards dmap-db pod.
   1. Once the http request is made response will be written back to shared EmptyDir voulme.
   2. Second Init-container (Update Config) will be reading the response from share EmptyDir voulme and will merge it with application config.

feedConfig:
  owner: dcaecm
  feedVersion: 0.0
  feedName: bulk_pm_feed
  asprClassification: unclassified
  feedDescription: DFC Feed Creation
  pubs:
    - username: dcaepub
      userpwd: tpJN3gjaAzPAiAa4
      dcaeLocationName: loc00

{
   "type":"feed",
   "lastMod":"2021-05-18T17:38:48.214Z",
   "status":"VALID",
   "asprClassification":"unclassified",
   "feedDescription":"DFC Feed Creation",
   "feedId":"2",
   "feedName":"bulk_pm_feed",
   "feedVersion":"1",
   "logURL":"https://dmaap-dr-prov/feedlog/2",
   "owner":"dcaecm",
   "publishURL":"https://dmaap-dr-prov/publish/2",
   "pubs":[
      {
         "lastMod":"2021-05-18T17:38:48.204Z",
         "status":"VALID",
         "dcaeLocationName":"loc00",
         "feedId":"2",
         "pubId":"2.h2a6w",
         "username":"dcaepub",
         "userpwd":"tpJN3gjaAzPAiAa4"
      }
   ],
   "subs":[
      
   ],
   "subscribeURL":"https://dmaap-dr-prov/subscribe/2",
   "suspended":false
}

**Further analysis is on going will be updating this wiki as we move along.