How-to

Deploy the Operator

First off, to deploy this operator, simply run the script ./deploy-operator.sh and wait for the operator to be ready.

Deploy a minecraft Custom Resource

Then run the script ./deploy-minecraft-cr.sh. This will create a Custom Resource of type minecraft, and the operator will react and reconcile. Soon, you should have a minecraft server running in a pod.

Forward trafic to the port to test the running server

Run kubectl port-forward example-minecraft-pod 25565:25565 to forward local trafic to the pod on port 25565 (default minecraft port). Now start minecraft and chose multiplayer. Add a server and choose localhost for the hostname. Connect to the server and you are now playing minecraft on a Operator managed Minecraft deployment in Kubernetes.

Links

Guide : https://github.com/operator-framework/operator-sdk

Good example : https://github.com/operator-framework/operator-sdk-samples/blob/master/memcached-operator/pkg/controller/memcached/memcached_controller.go

Complete data overview: https://godoc.org/k8s.io/api/core/v1

Edit controller : pkg/controller/minecraft/minecraft_controller.go