sunshanpeng / podsetoperatorinjava

Java Implementation of https://github.com/hrishin/podset-operator using Fabric8 Kubernetes Client

PodSet Operator in Java Using Fabric8 Kubernetes Client

This is a demo operator which implements a simple operator for a custom resource called PodSet which is somewhat equal to ReplicaSet. Here is what this resource looks like:

apiVersion: demo.k8s.io/v1alpha1
kind: PodSet
metadata:
  name: example-podset
  spec:
    replicas: 5

Each PodSet object would have 'x' number of replicas, so this operator just tries to maintain x number of replicas checking whether that number of pods are running in cluster or not.

How to Build

   mvn clean install

How to Run

   mvn exec:java -Dexec.mainClass=io.fabric8.podset.operator.PodSetOperatorMain

Make Sure that PodSet Custom Resource Definition is already applied onto the cluster. If not, just apply it using this command:

kubectl apply -f src/main/resources/crd.yaml

Once everything is set, you can see that operator creating pods in your cluster for PodSet resource: