This sample app is a modified version of the Node.js sample app from the AWS Elastic Beanstalk Tutorial
I mainly use it to demonstrate continuous delivery, automated quality gates and self-healing of the Open Source project Keptn as well as the monitoring capabilities of Dynatrace
I've modified and extended it with a couple of additional API calls such as:
- echo a string
- invoke a server-side URL and return the byte size
- "login" with a username
- get the currently running version
I've also built-in an option to slow down server-side code execution or to simulate failed requests. The app also comes with 4 built-in "build number" behaviors - meaning - if you launch the app and tell it to run as Build 1, 2, 3 or 4 it shows slightly different behavior. You can also launch the application in Production or Non-Production Mode:
| Build | Behavior |
|---|---|
| 1 | Everything good |
| 2 | 50% Failure Rate of /api/invoke |
| 3 | Everything good |
| 4 | 20% Failure Rate of /api/invoke and twice as slow when running in production mode |
Every build shows the build number and has its own color:
There are different options on how to run / deploy that app
| Run where | How |
|---|---|
| Local | npm start |
| Docker | docker run grabnerandi/simplenodeservice:1.0.0 |
| k8s | https://github.com/grabnerandi/keptn-qualitygate-examples |
You can build the app yourself and also use the buildpush.sh for building the container and pushing it to your own container registry!