Proxy a Vaadin application with Spring Cloud Zuul

This is the first sample of my experience with Spring Cloud and Vaadin.

Hopefully I find some time during the Easter holidays to add some more documentation here.

Running the sample

The simplest way to run the sample is to start the applications with the Spring Boot Dashboard of your IDE.

First you have to start the config-service application because the configuration is centralized. The application.properties files could be found here:

• config-service/config-data

After that, order doesn't matter for the start of the other applications:

• eureka-service
• proxy-service
• simple-vaadin-application

Using the sample

1) Check if applications are registered in Eureka

Open Eureka dashboard http://localhost:8761/ and check if the applications are listed

2) Check if none-proxied Vaadin application is reachable

Open http://localhost:7070/simple-vaadin-application/ and check if you could see the 'Hello World'

3) Check if proxy service has discovered the simple-vaadin-application

Open health endpoint of proxy service http://localhost:8080/health and check if the simple-vaadin-application is in the application list of Eureka indicator.

4) Open proxied Vaadin application

Open http://localhost:8080/simple-vaadin-application and check if you could see the 'Hello World'. Finally have a look on the address bar of the browser if you are still using the proxied Vaadin application.