apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: cassandra
  labels:
    app: cassandra
spec:
  serviceName: cassandra
  replicas: 3
  selector:
    matchLabels:
      app: cassandra
  template:
    metadata:
      labels:
        app: cassandra
    spec:
      terminationGracePeriodSeconds: 1800
      containers:
      - name: cassandra
        image: cassandra
        imagePullPolicy: Always
        ports:
        - containerPort: 7000
          name: intra-node
        - containerPort: 7001
          name: tls-intra-node
        - containerPort: 7199
          name: jmx
        - containerPort: 9042
          name: cql
        #resources:
        #  limits:
        #    cpu: "500m"
        #    memory: 1Gi
        #  requests:
        #   cpu: "500m"
        #   memory: 1Gi
        securityContext:
          capabilities:
            add:
              - IPC_LOCK
        lifecycle:
          preStop:
            exec:
              command: 
              - /bin/sh
              - -c
              - nodetool drain
        env:
          #- name: MAX_HEAP_SIZE
          #  value: 512M
          #- name: HEAP_NEWSIZE
          #  value: 100M
          - name: CASSANDRA_SEEDS
            value: "cassandra-0.cassandra"
          - name: CASSANDRA_CLUSTER_NAME
            value: "K8Demo"
          - name: CASSANDRA_DC
            value: "DC1-K8Demo"
          - name: CASSANDRA_RACK
            value: "Rack1-K8Demo"
          - name: POD_IP
            valueFrom:
              fieldRef:
                fieldPath: status.podIP
        #readinessProbe:
        #  exec:
        #    command:
        #    - /bin/bash
        #    - -c
        #    - /ready-probe.sh
        #  initialDelaySeconds: 15
        #  timeoutSeconds: 5
