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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 :
Gerrit review links
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
- 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.
- 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.
- Once the http request is made response will be written back to shared EmptyDir voulme.
- Second Init-container (Update Config) will be reading the response from share EmptyDir voulme and will merge it with application config.
![](/download/attachments/103417564/DmaapBc-Design%20%281%29.jpg?version=2&modificationDate=1621324944000&api=v2)
Data Router Feed, Publisher, Subscriber creation input details.
Old approach-
------------------------------------------
feedConfig:
owner: dcaecm
feedVersion: 0.0
feedName: bulk_pm_feed
asprClassification: unclassified
feedDescription: DFC Feed Creation
pubs:
- username: dcaepub
userpwd: tpJN3gjaAzPAiAa4
dcaeLocationName: loc00
------------------------------------------
New approach-
------------------------------------------
# DataRouter Feed Configuration
drFeedConfig:
- feedName: bulk_pm_feed
owner: dcaecm
feedVersion: 0.0
asprClassification: unclassified
feedDescription: DFC Feed Creation
# DataRouter Publisher Configuration
drPubConfig:
- feedName: bulk_pm_feed
dcaeLocationName: loc00
# DataRouter Subscriber Configuration
drSubConfig:
- feedName: bulk_pm_feed
dcaeLocationName: loc00
decompress: True
privilegedSubscriber: True
deliveryURL: https://dcae-pm-mapper:8443/delivery
------------------------------------------
ConfigMap Configuration for Feed, Dr_Publisher
------------------------------------------
volumes:
- name: feeds-config
path: /opt/app/config/feeds/
- name: drpub-config
path: /opt/app/config/dr_pubs/
- name: drsub-config
path: /opt/app/config/dr_subs/
Code Snip for Updating Application config with dmaap Feed/Pub/Sub detals.
{{- define "common.dmaap.provisioning.initContainer" -}}
{{- $dot := default . .dot -}}
{{- $drFeedConfig := default $dot.Values.drFeedConfig .drFeedConfig -}}
{{- $drPubConfig := default $dot.Values.drPubConfig .drPubConfig -}}
{{- if or $drFeedConfig $drPubConfig -}}
- name: {{ include "common.name" $dot }}-init-dmaap-provisioning
image: {{ include "repositoryGenerator.image.dbcClient" $dot }}
imagePullPolicy: {{ $dot.Values.global.pullPolicy | default $dot.Values.pullPolicy }}
env:
- name: RESP_CACHE
value: /opt/app/config/cache
- name: REQUESTID
value: "{{ include "common.name" $dot }}-dmaap-provisioning"
resources: {{ include "common.resources" $dot | nindent 1 }}
volumeMounts:
{{- include "common.dmaap.provisioning._volumeMounts" $dot | trim | nindent 2 }}
- name: {{ include "common.name" $dot }}-init-merge-config
image: {{ include "repositoryGenerator.image.envsubst" $dot }}
imagePullPolicy: {{ $dot.Values.global.pullPolicy | default $dot.Values.pullPolicy }}
command:
- /bin/sh
args:
- -c
- |
if [ -d /opt/app/config/cache/ ]; then
cd /opt/app/config/cache/
for file in $(ls feed*); do
NUM=$(echo "$file" | sed 's/feedConfig-\([0-9]\+\)-resp.json/\1/')
export DR_LOG_URL_"$NUM"="$(grep -o '"logURL":"[^"]*' "$file" | cut -d '"' -f4)"
export DR_FILES_PUBLISHER_URL_"$NUM"="$(grep -o '"publishURL":"[^"]*' "$file" | cut -d '"' -f4)"
done
for file in $(ls drpub*); do
NUM=$(echo "$file" | sed 's/drpubConfig-\([0-9]\+\)-resp.json/\1/')
export DR_USERNAME_"$NUM"="$(grep -o '"username":"[^"]*' "$file" | cut -d '"' -f4)"
export DR_PASSWORD_"$NUM"="$(grep -o '"userpwd":"[^"]*' "$file" | cut -d '"' -f4)"
export DR_FILES_PUBLISHER_ID_"$NUM"="$(grep -o '"pubId":"[^"]*' "$file" | cut -d '"' -f4)"
done
for file in $(ls drsub*); do
NUM=$(echo "$file" | sed 's/drsubConfig-\([0-9]\+\)-resp.json/\1/')
export DR_USERNAME_"$NUM"="$(grep -o '"username":"[^"]*' "$file" | cut -d '"' -f4)"
export DR_PASSWORD_"$NUM"="$(grep -o '"userpwd":"[^"]*' "$file" | cut -d '"' -f4)"
export DR_FILES_SUBSCRIBER_ID_"$NUM"="$(grep -o '"subId":"[^"]*' "$file" | cut -d '"' -f4)"
done
else
echo "No Response logged for Dmaap BusController Http POST Request..!"
fi
cd /config-input && for PFILE in `ls -1`; do envsubst <${PFILE} >/config/${PFILE}; done
volumeMounts:
- mountPath: /opt/app/config/cache/
name: dbc-response-cache
- mountPath: /config-input
name: app-config-input
- mountPath: /config
name: app-config
resources:
limits:
cpu: 200m
memory: 250Mi
requests:
cpu: 100m
memory: 200Mi
{{- end -}}
{{- end -}}
Open Issues
Data Router Publisher/Subscriber behaviour is not consistent
- On dr_publiser creation if we dont provide username/password a default usename/password is created, but the same is not happening for dr_subscriber.
- On dr_publisher creation if username/password is provided as part of input dmaap-dbc client Api returns username as output and password is defaulted ot "null".
- On dr_subscriber creation if we supply username/password as part of input dmaap-dbc client Api returns both username/password as null.
Cmpv2Certificates generation
- While testing with 5gbulkpm testcase Cmpv2Certificates processing is failing send mail for clarification.
**Further analysis is on going will be updating this wiki as we move along.