The application is running on a Google Cloud Kubernetes Cluster. It consist on:
- A K8s StatefulSet with a single redis instance (replicas = 1).
- A K8s Deployment with a simple ruby application connecting to a Redis server (redis.ping) using ENV variables (replicas = 2).
In order to update the application message at hello-world.rb, you need to create a branch and do a PR to master (protected branch).
Once a PR is accepted and merged into master protected branch, a Travis CI is executed, building a new docker image, pushing it to private docker registry on GCP, and performing a kubernetes rolling update of ruby-helloworld deployment.
