STATUS: PTL approved, waiting for architecure approval

MSB (Micro Service Bus):

1 High Level Component Definition and Architectural Relationships 



The Microservice Bus function provides service registration, discovery and communication services for microservices as well as a gateway for internal & External communication for the services:

OOM connects to MSB to register and update service information when it instantiates service endpoints. 

MSB and DMaaP are complementary. MSB provides the restful API service registration/discovery/routing/API gateway, which addresses the sync/rpc communication pattern in microservice architecture,  in contrast, DMaaP provides messages/file transfer, which mainly focused on the async communication pattern in microservices architecture. 

2. API definitions

MSB provides the following interfaces: (Question, is this one interface with 3 LCMs or one interface with these capabilities)

Interface NameInterface Definition Interface Capabilities
MSBE-1Registration and Discovery interface The registration and discovery interface provides the following capabilities:
  • Register/Unregister a service
  • Discover a service 
MSBE-2Service Request Interfaces

Provides the capability to deliver and recieve a service request and subsequent communication.

MSBE-3  MSB Admin InterfaceProvides the ability to administer policy and routing for the service requests. 

Note:   xxxI interface is a Component internal interface.  xxxxE interface is a component external interface

The current API documents can be found at:

MSB consumes the following Interfaces:

Interface NamePurpose Reason For Use
N/AN/A


3. Component Description:

Add link to read-the-docs description of the component

4. known system limitations



MSB API gateway has been tested in this scenario:

The test result is 50000 request per second.

5. Used Models

MSB uses the following models:


6. System Deployment Architecture

FFS

7. New Capabilities in this Release

This release, MSB adds the following Capabilities:

8. References

  1. Microservice Bus API Documentation