Azure DevOps Deployment Topology

In-scope Hosts/Servers

Developer's Workstation: Where the Windows DataStage Designer client is typically run

Azure DevOps: An instance of Microsoft Azure DevOps, running either on-premises (known as "Azure Server") or as a service on Microsoft Azure ("Azure Services")

Information Server Development Environment: Your development instance of Information Server, which may be deployed in any topology, and on any number of hosts.

Information Server Test Environment(s): Downstream Information Server environments sitting between Development and Production.

MettleCI Host: A MettleCI-dedicated Windows-based DataStage Client tier used by your Azure Agent, in conjunction with the MettleCI Command Line Interface, to automate build and deployment activities.

Connections

Connection	Description	Notes
1	The MettleCI Workbench application running on your DataStage Engine tier needs to... perform a dynamic lookup of Work items when displaying the Git Commit page. commit to your Git platform	See: Configuring MettleCI Workbench SSH Authentication to Azure DevOps Integrating Azure DevOps Work Item Lookup with MettleCI Workbench
2	The Developer Workstation provides data engineers with access to the Azure user interface via a supported web browser.	This is a standard browser interface, and requires no MettleCI-specific configuration.See the following links: Supported browsers and devices for Azure portal (Microsoft) Navigating within the web portal (Microsoft)
3	Your Azure Pipelines perform their duties via an agent installed on the MettleCI-dedicated DataStage Client.	See Install and configure an Azure DevOps self-hosted agent Deploy an Azure Pipelines agent on Windows (Microsoft)
4	The Developer Workstation provides a DataStage client tier with access to the development environment's DataStage Engine and Services tiers.	The Developer Workstation and MettleCI Host (used to execute Azure Pipelines) both require identically-configure access to each DataStage platform with which it will communicate. See: Configuring your network (IBM) Configuring MettleCI Workbench to use a Custom Port Number Configuring the MettleCI Workbench to use HTTPS Note that if your plan to deploy to Production requires a MettleCI Host in a separate network zone you might be interested in adopting a multi-agent topology.
5	The MettleCI Host requires regular access to the development environment's DataStage Engine and Services tiers, identical to that of Developer Workstations.
6	The MettleCI Host requires regular access to the downstream test environments' DataStage Engine and Services tiers, to affect automated deployment.