Use this repository to familiarize yourself with Codefresh’s Composition Service Discovery.
Codefresh enables you to launch multiple instances of the same composition utilizing Docker. This is possible, in part, because Docker can map ports from a container to a random port on a host. Codefresh’s Composition Service Discovery enables you to reference these different services from within your containers even though they’re accessible via random endpoints.
The service discovery is achieved by injecting environment variables to every service of the composition. Environment variables are named after the service they refer too and contain the URL to that service.
This repository provides you with a web application that demonstrates this capability by listing the different URLs provided by Codefresh.
Once you’ve forked this repository, add it as a service to your Codefresh account.
Make sure you properly name the resulting image, for example myaccount/whomi, and then build the image.
Now that your image is built, add a composition that starts the whomi service together with a few others services.
This repository contains an example composition (docker-compose.yml) that you can add; just make sure to fill in the correct image name at line 14 of the composition!
So your composition is configured, now you can launch it and access the web application.