Configuring an Application

This topic describes how to configure an application from a developer perspective.

The connector component is responsible for discovering the application and registering it with Application Live View. The connector is deployed in the same namespace as the application. Labels are required to be added to the application PodSpec for the application to be discovered by the connector.

Below are the mandatory labels required:

tanzu.app.live.view="true" 
tanzu.app.live.view.application.name="<app-name>"

Example: If the user wants to deploy a Spring boot application, below is the sample deployment yaml file with necessary labels.

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: example-app
  name: example-app
spec:
  replicas: 1
  selector:
    matchLabels:
      app: example-app
  template:
    metadata:
      labels:
        app: example-app
        tanzu.app.live.view: "true" #Enable pod to be discovered by connector
        tanzu.app.live.view.application.name: example-app #application name 
    spec:
      containers:
      - image: ${EXAMPLE_APP_IMAGE} #Application image
        name: example-app
        ports:
          - containerPort: 8080

There are other optional fields which can be configured by the user as per their requirement.

Exclusive list of labels available are listed below:

Label Name	Mandatory	Type	Default	Significance
tanzu.app.live.view	true	Boolean	None	toggle to disable / enable pod discovery
tanzu.app.live.view.application.name	true	String	None	application name
tanzu.app.live.view.application.port	false	Integer	8080	application port
tanzu.app.live.view.application.path	false	String	/	application context path
tanzu.app.live.view.application.actuator.port	false	Integer	8080	application actuator port
tanzu.app.live.view.application.actuator.path	false	String	/actuator	actuator context path
tanzu.app.live.view.application.protocol	false	http / https	http	protocol scheme
tanzu.app.live.view.application.actuator.health.port	false	Integer	8080	health endpoint port
tanzu.app.live.view.application.flavours	false	comma separated string	spring-boot	application flavours