A statefulset that reads and writes a lot of storage.

muchstorage.yaml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: muchstorage
spec:
  serviceName: "muchstorage"
  replicas: 7
  selector:
    matchLabels:
      app: muchstorage
  template:
    metadata:
      labels:
        app: muchstorage
    spec:
      containers:
      - name: nginx
        image: k8s.gcr.io/nginx-slim:0.8
        #command: ["sh", "-c", "echo 'starting script'; dd if=/dev/urandom of=/mnt/8GB.bin bs=64M count=128 iflag=fullblock; ls -alh /mnt; sha256sum /mnt/8GB.bin ; sleep 500d"]
        command: ["sh", "-c", "echo 'starting script'; while :; do echo 'loop start'; dd if=/dev/urandom of=/mnt/8GB.bin bs=64M count=128 iflag=fullblock; ls -alh /mnt; sha256sum /mnt/8GB.bin; done"]
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: www
          mountPath: /mnt
  volumeClaimTemplates:
  - metadata:
      name: www
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Gi