Statefulset for cassandra

statefulSetCassandra.yaml

---
apiVersion: "apps/v1"
kind: StatefulSet
metadata:
  name: cassandra
  namespace: cassandra
  labels:
    app: cassandra
spec:
  serviceName: cassandra
  replicas: 3
  updateStrategy:
    type: RollingUpdate
  selector:
    matchLabels:
      app: cassandra
  template:
    metadata:
      labels:
        app: cassandra
    spec:
      containers:
      - name: aws-cli
        image: amazon/aws-cli:latest
        command: [ "sleep" ]
        args: [ "infinity" ]
        volumeMounts:
          - name: cassandra-data
            mountPath: /var/lib/cassandra/data
      - name: cassandra
        image: docker.io/library/cassandra:3.9
        imagePullPolicy: IfNotPresent
        ports:
          - containerPort: 7000
            name: intra-node
          - containerPort: 7001
            name: tls-intra-node
          - containerPort: 7199
            name: jmx
          - containerPort: 9042
            name: cql
        resources:
          limits:
            cpu: "1000m"
            memory: 58Gi
          requests:
            cpu: "1000m"
            memory: 58Gi
        securityContext:
          capabilities:
            add:
              - IPC_LOCK
        lifecycle:
          preStop:
            exec:
              command:
              - /bin/sh
              - -c
              - nodetool drain
        env:
          - name: CASSANDRA_START_RPC
            value: "true"
          - name: CASSANDRA_CLUSTER_NAME
            value: "Source_Cluster_Name"
          - name: CASSANDRA_DC
            value: "Source_Datacenter_Name"
          - name: CASSANDRA_RACK
            value: "Source_Rack_Name"
          - name: CASSANDRA_ENDPOINT_SNITCH
            value: GossipingPropertyFileSnitch
          - name: POD_IP
            valueFrom:
              fieldRef:
                fieldPath: status.podIP
        envFrom:
        - configMapRef:
            name: cassandra-rings
        readinessProbe:
          exec:
            command:
            - /bin/bash
            - -c
            - /var/tmp/ready-probe.sh
          initialDelaySeconds: 120
          periodSeconds: 120
          timeoutSeconds: 30
        volumeMounts:
          - name: cassandra-data
            mountPath: /var/lib/cassandra/data
          - name: docker-entrypoint-sh
            mountPath: /docker-entrypoint.sh
            subPath: docker-entrypoint.sh
          - name: readiness-probe-sh
            mountPath: /var/tmp/ready-probe.sh
            subPath: ready-probe.sh
      schedulerName: default-scheduler
      terminationGracePeriodSeconds: 180
      volumes:
      - name: docker-entrypoint-sh
        configMap:
          name: docker-entrypoint-sh
          defaultMode: 0777
      - name: readiness-probe-sh
        configMap:
          name: readiness-probe-sh
          defaultMode: 0777
  volumeClaimTemplates:
    - metadata:
        name: cassandra-data
      spec:
        accessModes: ["ReadWriteOnce"]
        storageClassName: gp2-encrypted
        resources:
          requests:
            storage: 4Ti