/customer-service

Primary LanguageJava

Overview

This repo has the code for the customer service for demonstrations. See the overview repo for an overview for that whole application.

The intent of this demo is to have versions of the application with normal and builtin problems that are controlled by the version number.

Service Version/Docker Tag Description
customer-service 1 Normal behavior
customer-service 2 High Response time for /customer/list.html
customer-service 3 High Response time for all requests

Run Docker Image

The images for this service has been build and published to Dockerhub.

  1. Here is an example of running version 2
docker run -p 8080:8080 dtdemos/dt-orders-customer-service:2
  1. Here is an example of running version 1 with LaunchDarkly enabled
export LAUNCH_DARKLY_SDK_KEY=<YOUR KEY>
docker run -p 8080:8080 --env LAUNCH_DARKLY_SDK_KEY=$LAUNCH_DARKLY_SDK_KEY dtdemos/dt-orders-customer-service:2
  1. access application at http://localhost:8080

URL reference

url type description
#.html GET get a customer by ID e.g. /1.html
form.html GET open form to edit a customer
form.html POST submit the form of an edited customer
health GET return JSON payload for application health - this response is hardcoded as OK
list.html GET list of customers
manifest GET show the DOCKER image manifest file
setversion/# GET set the version e.g. /setversion/1 /setversion/2
version GET show the version

Developer Notes

Pre-requisites

The following programs to be installed

  • Java 15
  • Maven
  • Docker

Build and Run Locally

  1. Use the provided Unix shell script that will build one docker image and run it. Optionally pass in the dockerhub repo name and version to run.

    Just call: ./buildrun.sh

    For example, build and run version 1: ./buildrun.sh

  2. access application at http://localhost:8080

Build Docker Images and push images to a repository

Use the provided Unix shell script that will build the docker image and publish it. There are three versions that will be built. Optionally pass in the dockerhub repo name.

Just call: ./buildpush.sh

For example: ./buildpush.sh

LaunchDarkly Feature Flags

This application has also been build with the LaunchDarkly Java SDK. This is to demo "in-place" changes to application.

If you don't need LaunchDarkly, then there is no impact - it will only be enabled if you setup the LaunchDarkly KEY set as a Docker environment variable. See Run Docker Image section below.

Be sure to setup the LaunchDarkly Dynatrace integration](https://docs.launchdarkly.com/integrations/dynatrace) as well to get LaunchDarkly changes pushed to Dynatrace.