WSO2 Enterprise Service Bus as a Service

Implementation Overview

WSO2 Enterprise Service Bus (ESB) 4.8.1 is provided as a service on WSO2 Private PaaS 4.1.0. This is implemented by creating the following:

• Template module

  The template module configures the product in runtime, with a set of key value pairs known as the configuration parameters.

• Cartridge agent plugin

  The cartridge agent plugin, sets the runtime configuration parameters such as hostnames, IP addresses of dependent clusters, dynamic proxy ports and many more.

• Docker image

  The Docker image is built by packaging the following components:

  • Cartridge agent

  • Product distribution

  • Template module

  • Configurator

  • Java runtime

• Puppet module

  The puppet module includes the same set of component as in the Docker image. In the puppet image the template module is used to configure automation.

Deployment Architecture

The diagram illustrates the deployment architecture of WSO2 ESB on Private PaaS. In the deployment, two different Private PaaS clusters will be created for the ESB manager and worker. These clusters can be scaled independently.

Template Module

The WSO2 ESB 4.8.1 template module provides a set of templates that is used to configure ESB with the Configurator.

Cartridge Agent Plugin

The Server configurations are automated through the cartridge agent plugin, which was implemented for WSO2 ESB 4.8.1.

The plugin configures the following and many more:

• server hostname
• cluster discovery parameters

• proxy ports