Table of Contents
1. Overview
DCAE project provides intelligence for ONAP to support automation (via open-loop and CL) by performing network data collections, analytics & correlation and trigger actionable rootcause events.
With Since Jakarta release, DCAE Platform component centered around Cloudify will be deprecated. All has been deprecated; all Microservice orchestration and lifecycle management will be are handled through Helm/Kubernetes.
The DCAE services components includes all the microservices - collectors, analytics and event processor which supports active data-flows and processing as required by ONAP usecases. The The architecture of DCAE targets flexible, micros-service oriented, model based component design and deployment. DCAE also offers support for multi-site collection and analytics operations which are essential for large ONAP deployments.
2. New component capabilities for
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Kohn, i.e. the functional enhancements
Following are the planned scope for Kohn release (more info on the commitment and supporting companies documented under DCAE R11 Kohn M2 Release Planning)
- Complete DCAE transformation to Helm
- Address DCAE transformation carry-over items
- Common Template Enhancement for dcaegen2-services-common (
filebeat removal + general add-on capabilities)- Continue removal of Consul dependency & application config standardization via configmap
- MOD Support for Helm chart generation/distribution
- Deprecate Cloudify and related Handlers from ONAP deployment Integration Testsuite migration to use helm chart
- For support for dynamic configuration update via ConfigMap)
- DR Feed configuration cleanup
- Bug fixes for MOD/Helm-gen (log.path setting override)
- Support TSC approved ONAP Usecases and Features (details
documented here - DCAE R11 Kohn M2 Release Planning- below)
- Alignment with TSC/SECCOM Global
requirements - STDIO complaince for Heartbeat and SNMPTRap MS
- requirements & TSC/SECCOM Best Practice
- Integration base image alignment for VES/RESTConf/SliceAnalysis MS
- Reducing DCAE backlogs + security fixes
- OpenSSF Best Practice progression (target Gold badging)
- SBOM Report integration with CI and validation*
- Continue AAF certificate dependency removal (by making it a configurable property)
- Microservice enhancements in support for ONAP usecases/features
- SliceAnalysis Ms (under E2E Slicing/IBN/CCVPN), SON-Handler (5G SON)
- Enable automated static-check code review/scan with CI/verify job
- Improving code coverage across all DCAE components
- DCAE backlog reduction
Services Introduction
Following new service will be delivered for KohnFollowing new services will be delivered as POC in R11
- ML MS (REQ-1074)
- Repository : https://git.onap.org/dcaegen2/services/tree/components/ml-prediction-ms (introduced as new subproject under existing repo)
- ML MS (REQ-1074)
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Refer DCAE R11 Kohn M2 Release Planning#Scope for more details
Following Platfrom components are deprecated and no longer part of DCAE deployment
- Cloudify
- Dashboard
- ServiceChange Handler
- Policy-Handler
- Deployment-Handler
- InventoryAPI
- ConfigBindingService*
Deprecation Notice:
- Acumos Adapter
DCAE MOD under assessment for EOL with London release
DCAE MOD was introduced in Frankfurt release to address following requirements:
- Simplified and streamlined onboarding for DCAE components/microservice and distribute the deployment artifact with DCAE-Core Platform (Cloudify)
- Provide Common Catalog for reusable DCAE microservices for Designer to leverage
- Enable automated onboarding for ML microservices from Acumos.
With DCAE platform transformation feature, requirement #1 and #2 are less critical as the onboarding/deployment are easily managed through Helm-Charts and catalog supported through Chartmuseum (or any other registry). Also with Acumos project archived under LF (end of 2021), DCAE team will be assessing the need for continuation/support of DCAE MOD going forward.
Note: Certain MOD components are on java8 due to upstream dependency with Apache/Nifi project on java8 and have SECCOM exception currently.
KOHN Deployment
3. New or modified interfaces
New External interfaces
- None
Modified interfaces
- PMSH - Adds new API support for Subscription/Filters/Measurement group management (this will be consumed by Policy)
- Slice Analysis - API to provide resource availability for existing slice/subslice. OOF is consumer of the API and will use this data to determine reusability of slice. - NSI/NSSI Selection based on resource occupancy levels; SliceAnalysis will also subscribe to AAI notification to support User-intent triggered CL flow for Bandwidth assessmentNone
Deprecated interfaces
- Cloudify API (used for LCM of DCAE MS)
- InventoryAPI (used for saving/retreving DCAE blueprints)
- DeploymentHandler API (used by CLAMP for triggering MS deployment)
- With deprecation of Acumos Adapter, interface with Acumos project will no longer be supported
4. Interface naming
DCAE R11 Kohn M2 Release Planning#APIOutgoingDependencies
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Existing platform API's - https://docs.onap.org/projects/onap-dcaegen2/en/latest/sections/offeredapis.html
DCAE Platform
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DCAE Service Components
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Deprecation Notice: Following Platform API's will be deprecated once all MS migration to new SDK is completed in Jakarta releasepost Kohn release if no new usecase/driver is identified for ONAP releases. For the interim time, the MOD component will be retained in deployment using Jakarta version (no new enhancement/updates are planned)
6. What are the system limits
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8. Platform Maturity Targets
Jakarta Kohn Release Platform Maturity
Global Requirement and Best Practices - DCAE R11 Kohn M2 Release Planning#BestPractices/GLOBALRequirements
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No model changes planned for J Kohn release