There is a sample application here. It is a Spring Boot application so you can run it using the usual mechanisms (for instance "mvn spring-boot:run"). When it runs it will look for the config server on http://localhost:8888 by default, so you could run the server as well to see it all working together.
The sample has a test case where the config server is also started in the same JVM (with a different port), and the test asserts that an environment property from the git configuration repo is present. To change the location of the config server just set "spring.cloud.config.uri" in "bootstrap.yml" (or via System properties etc.).
The test case has a main() method that runs the server in the same
way (watch the logs for its port), so you can run the whole system in
one process and play with it (e.g. right click on the main in your IDE
and run it). The main() method uses target/config for the working
directory of the git repository, so you can make local changes there
and see them reflected in the running app.
Simple method to start the service:
$ cd 'spring-service'
$ mvn spring-boot:run
For start all the service you can execute start_all.sh.
The server is a Spring Boot application so you can run it from your
IDE instead if you prefer (the main class is
ConfigServerApplication).
Running using Docker is even simpler, assuming that docker-compose and docker are installed on your box, just run the following:
Build the docker images for the microservices
mvn clean package docker:build
Start up Docker containers
docker-compose up