example of new SparkCluster CR starting with ODH 0.9

sparkcluster.yaml

apiVersion: radanalytics.io/v1
kind: SparkCluster
metadata:
  name: spark-cluster-example
spec:
  customImage: 'quay.io/radanalyticsio/openshift-spark-py36:2.4.5-2'
  env:
    - name: SPARK_METRICS_ON
      value: prometheus
  master:
    cpuLimit: '1'
    cpuRequest: '1'
    instances: '1'
    memoryLimit: 2Gi
    memoryRequest: 1Gi
  worker:
    cpuLimit: '1'
    cpuRequest: '1'
    instances: '2'
    memoryLimit: 2Gi
    memoryRequest: 1Gi