Architecture
The Cloud Native User Data Repository architecture is based on the following three tiers:
Connectivity Tier
- Ambassador is used as API gateway which will receive all requests and forwards them to Nudr-drservice service in Business Tier.
- It also load balances the traffic and provides required authentication.
- It runs on Kubernetes as a microservice.
Business Tier
- Provides the business logic of 5G User Data Repository.
- It runs on Kubernetes and
has three micro services:
- Nudr-drservice: The core service which will handles flexible URI support, runtime schema validation and connects to Data Tier for DB operations.
- Nrf-client-service: Handles Network Repository Function registration, heartbeat, update, and deregistration with Network Repository Function.
- Nudr-notify-service: Handles notification messages to Policy Control Function (PCF) for data subscriptions.
Data Tier
- Uses MySQL NDB Cluster as backend DB which provides HA and geo-redundancy capabilities.
- Runs on VMs.
