jeffgbutler / pcfdemos

Various Demos for PCF

This repo has a variety of demo applications that show different aspects of application development for PCF.

Loan Calculator Demo

This demo shows how to build, deploy, and scale a simple microservice. The demo includes two version of the microservice in Java using Spring Boot, two version in C# using Steeltoe, and a common client written in react.js. The common client acts as a traffic simulator and the different versions of the service can be used to demonstrate a blue-green deployment.

Demo	Comments
Common Client	React.js client application and UI for all other loan calculator demos
Java Version 1	Java microservice using Spring Boot. Has a bug - it has state in memory
Java Version 2	Java microservice using Spring Boot. Uses Spring cloud connectors to attach to a Redis service in PCF for storing state
C# Version 1	C# microservice using .Net core. Has a bug - it has state in memory
C# Version 2	C# microservice using .Net core. Uses Steeltoe to attach to a Redis service in PCF for storing state

Persistence Demos

Demos in this section show various ways of working with relational databases in PCF and Spring Boot. Each demo in this section will attach to a MySql instance when deployed on cloud foundry, or will use an in memory H2 database otherwize.

Demo	Comments
Persistence with MyBatis	Persistence with MyBatis. The UI is swagger based with a simple REST controller
Persistence with JPA	Persistence with JPA/Hibernate. The UI is swagger based with a simple REST controller
Persistence with JPA Version 2	Persistence with JPA/Hibernate. The REST controller here is created automagically using Spring data rest. Swagger will not generate a UI for Spring data rest at this time

Live Coding

Several live coding scripts demonstrating Java, C#, and Knative topics are available in the live-coding-scripts directory.