Examining your business applications

After you attach a data source in the Tanzu Platform hub, the hub discovers the applications that are running on these platforms and groups them into business applications.

Note

With this initial version of the feature, business applications are supported only for TAS and Kubernetes. Each business application represents a TAS space or a Kubernetes namespace.

As a platform engineer, to review the status of your application platforms and quickly identify problematic areas, you can examine the status of your business applications and drill down into the topology maps to locate the components that need attention.

Before you begin

• For Spring applications in a Tanzu Application Service (TAS) foundation, see Configure your Spring applications for application management in Tanzu Platform and Attach a Tanzu Application Service foundation as a VMware Tanzu Hub data source.
• For Spring applications in a Kubernetes cluster, see Configure your Spring applications for application management in Tanzu Platform and Attach a Kubernetes cluster as a VMware Tanzu Hub data source.
• You must have the Tanzu Hub Admin service role to view the business applications in the hub.

1. How to view my business applications

To view the discovered business applications, in the left navigation pane, select Applications > Business Applications.

2. How to view the statuses of my business applications

The Business Applications page contains the Status chart, which shows:

• The Total number of your business applications.

• The number of the business applications per status. The status of a business application is based on the statuses of the applications within that business applications.

  Status	Description
  Running	All applications within the business application are running.
  Partial Running	One or more applications within the business application have stopped.
  Stopped	All applications within the business application have stopped.
  Unknown	No information about the applications within the business application.

3. How to find a business application

The Business Applications page also contains a table list of the discovered business applications. You can:

• Filter by status by clicking a status on the pie chart or the legend of the Status chart.
• Search by name.
• Filter by source type.

• Sort by the properties in the table columns.

  Property	Description
  Name	The name of the business application. For an application on Kubernetes, this is the name of the Kubernetes namespace. For an application on TAS, this is the name of the TAS cluster.
  Source Type	The source of grouping. Currently, can be a TAS space or a Kubernetes namespace.
  Status	The status of the business application based on the statuses of the applications within that business applications.
  App Count (Status)	The total number of applications within that business application and the number of the applications per status.
  Created	How long ago the business application was discovered and created in the hub.

4. How to examine a business application

If a business application is not in running status, you can drill down into its topology to examine its components, their dependencies, and statuses. To do so, on the Business Applications page, click the name of the business application you are interested in. The business application page opens.

On this page, you can examine the topology maps of the business application. To switch between the two topology maps, use the selector in the top left.

Topology Map	Description
Logical App	Shows the dependencies and the dependents of the business application. An arrow between two components indicates a dependency and its direction. The text on an arrow indicates the type of relationship between the dependent components. In our example: 1 - AppWithoutSpring is the TAS organization or the attached TAS data source that provides this information. 2 - test-app is the business application that maps to TAS space. This business application is contained in the TAS organization, and contains two applications. 3 - test-app and jdbc-sql-console-app are the two applications within this TAS space.
Platform	Shows a high-level overview of the components that make up the application platform in the scope of the business application. This includes details about the application services, availability zones, routes, foundation, etc, and how your business application depends on these components.

Note

A red dot in a component on the map indicates that this component is not running and needs attention.

When you click a component on a topology map, the panels on the right dynamically show the following information for the selected component:

Panel	Description
Properties	Shows the configuration details of the component that is selected on the topology map. For example, if you click a Spring application on the topology map, this panel shows the collected actuator-based Spring application configuration key values and Git information. You can examine the history of the changes of the properties.
Connected Resources	The number of connected resources by type for the component that is selected on the topology map.
Dependencies	A textual representation of the dependencies of the component that is selected on the topology map.

Parent topic: Monitoring your applications in the Tanzu Platform hub