direct-pv-bench.sh

#!/bin/bash

# Create a namespace for the benchmark
kubectl create namespace storage-benchmark

# Deploy Rancher Local Path Provisioner
kubectl apply -f https://raw.githubusercontent.com/rancher/local-path-provisioner/master/deploy/local-path-storage.yaml

# Deploy DirectPV (assuming you have a YAML file for DirectPV deployment)
kubectl apply -f directpv-deployment.yaml

# Create a PersistentVolumeClaim for Rancher Local Path Provisioner
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: local-path-pvc
  namespace: storage-benchmark
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi
  storageClassName: local-path
EOF

# Create a PersistentVolumeClaim for DirectPV
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: directpv-pvc
  namespace: storage-benchmark
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi
  storageClassName: directpv
EOF

# Create a Pod to run the fio benchmark on Rancher Local Path Provisioner
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
  name: fio-local-path
  namespace: storage-benchmark
spec:
  containers:
  - name: fio
    image: alpine:3.12
    command: ["sh", "-c", "apk add --no-cache fio && fio --name=randwrite --ioengine=libaio --rw=randwrite --bs=4k --direct=1 --size=1G --numjobs=4 --runtime=60 --group_reporting"]
    volumeMounts:
    - mountPath: /data
      name: local-path-storage
  volumes:
  - name: local-path-storage
    persistentVolumeClaim:
      claimName: local-path-pvc
EOF

# Create a Pod to run the fio benchmark on DirectPV
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
  name: fio-directpv
  namespace: storage-benchmark
spec:
  containers:
  - name: fio
    image: alpine:3.12
    command: ["sh", "-c", "apk add --no-cache fio && fio --name=randwrite --ioengine=libaio --rw=randwrite --bs=4k --direct=1 --size=1G --numjobs=4 --runtime=60 --group_reporting"]
    volumeMounts:
    - mountPath: /data
      name: directpv-storage
  volumes:
  - name: directpv-storage
    persistentVolumeClaim:
      claimName: directpv-pvc
EOF

# Wait for the benchmark to complete
echo "Waiting for benchmarks to complete..."
kubectl wait --for=condition=complete --timeout=300s pod/fio-local-path -n storage-benchmark
kubectl wait --for=condition=complete --timeout=300s pod/fio-directpv -n storage-benchmark

# Retrieve the results
echo "Benchmark results for Rancher Local Path Provisioner:"
kubectl logs pod/fio-local-path -n storage-benchmark

echo "Benchmark results for DirectPV:"
kubectl logs pod/fio-directpv -n storage-benchmark

# Clean up
kubectl delete namespace storage-benchmark