After you configure your Spring applications and attach your applications platform, Tanzu Platform discovers the applications and microservices that are running on your platform. The platform you attach in Tanzu Platform can be a Cloud Foundry foundation or your Kubernetes cluster. Tanzu Platform also discovers any application you have created in a Kubernetes Space.

After application discovery, Tanzu Platform starts collecting metrics and other data from the applications and the platforms on which they are running. The application discovery allows you to review the status of all your discovered applications on Tanzu Platform. You can quickly identify problematic areas by drilling down into the topology maps to locate the components that need attention.

You can also create business applications from the discovered applications. For information about creating business applications in Tanzu Platform, see Create business applications in Tanzu Platform.

Tanzu Platform supports only Spring-based applications on Tanzu Platform for Cloud Foundry and Kubernetes.

Before you begin

• For Spring applications in a Tanzu Platform for Cloud Foundry foundation,

  1. Configure your Spring applications. See Configure your Spring applications for application management in Tanzu Platform and
  2. Attach a Cloud Foundry foundation in Tanzu Platform. See Attach a Tanzu Platform for Cloud Foundry foundation as a VMware Tanzu Platform data source.

• For Spring applications in a Kubernetes cluster,

  1. Configure your Spring applications. See Configure your Spring applications for application management in Tanzu Platform.
  2. Attach a Kubernetes cluster in Tanzu Platform. See Attach a Kubernetes cluster as a VMware Tanzu Platform data source.

• You must have the Tanzu Platform Admin service role to view the Spring applications and the application dashboards in Tanzu Platform.

View applications and microservices

To view the discovered applications and microservices, in the left navigation pane, select Applications > Apps.

The Applications page contains the Status chart, which shows:

• The Total number of the applications.

• The number of the applications per status.

  Status	Description
  Running	The application is running.
  Stopped	The application is not running.
  Unknown	No information about the status of the application. Check if the actuator is enabled correctly. See Enable Actuator in your Spring applications.

Find an application or microservice

The Applications page also contains a table list of the discovered applications and microservices. Use the Search text box to search for an application by name.

• On Kubernetes, see Verify the Spring application name to find the names of applications.
• On Cloud Foundry, search for the Cloud Foundry application name.

You can click the name of an application to open its application dashboard.

In the table of discovered applications and microservices, you can also:

• Filter by source type, framework, status, and business application.

• Sort the table by the properties in the columns.

  Property	Description
  Source Type	The source platform type. Currently, can be Tanzu Platform for Cloud Foundry, or Kubernetes, or public cloud.
  Framework	The framework of that application.
  Status	The status of the application.
  Business Application	The name of the business application to which the application belongs. For an application on Kubernetes, this is the name of the Kubernetes namespace. For an application on Cloud Foundry, this is the name of the Cloud Foundry cluster. You can click the name of a business application to open its topology map. See How to examine a business application.

What you can do now