local path provisioner

references

• https://github.com/rancher/local-path-provisioner
• https://github.com/rancher/local-path-provisioner/tree/master/deploy/chart/local-path-provisioner

installation

1. prepare local-path-provisioner.yaml

   • apiVersion: argoproj.io/v1alpha1
     kind: Application
     metadata:
       name: opt-local-path
     spec:
       syncPolicy:
         syncOptions:
         - CreateNamespace=true
       project: default
       source:
         repoURL: https://charts.containeroo.ch
         chart: local-path-provisioner
         targetRevision: 0.0.32
         helm:
           releaseName: opt-local-path
           valuesObject:
             replicaCount: 1
             image:
               repository: m.daocloud.io/docker.io/rancher/local-path-provisioner
             helperImage:
               repository: m.daocloud.io/docker.io/library/busybox
               tag: latest
             helperPod:
               resources:
                 requests:
                   cpu: 100m
                   memory: 128Mi
                 limits:
                   cpu: 500m
                   memory: 512Mi
             nodePathMap:
               - node: DEFAULT_PATH_FOR_NON_LISTED_NODES
                 paths:
                   - /opt/local-path/local-path-provisioner
               #- node: k3s1
                 #paths:
                 #- /opt/disk-mount/local-path-provisioner
             storageClass:
               create: true
               defaultClass: false
               defaultVolumeType: local
               name: opt-local-path
               reclaimPolicy: Delete
             resources:
               requests:
                 cpu: 100m
                 memory: 128Mi
               limits:
                 cpu: 500m
                 memory: 512Mi
       destination:
         server: https://kubernetes.default.svc
         namespace: storage
     
     

2. apply to k8s

   • kubectl -n argocd apply -f local-path-provisioner.yaml
     

3. sync by argocd

   • argocd app sync argocd/opt-local-path
     

tests

1. prepare busybox-pvc-test.yaml

   • apiVersion: v1
     kind: PersistentVolumeClaim
     metadata:
       name: opt-local-path-pvc
     spec:
       accessModes:
         - ReadWriteOnce
       resources:
         requests:
           storage: 1Gi
       storageClassName: opt-local-path
     
     ---
     
     apiVersion: batch/v1
     kind: Job
     metadata:
       name: busybox-pvc-test-job
     spec:
       completions: 1
       parallelism: 1
       backoffLimit: 4
       template:
         metadata:
           labels:
             app: busybox-pvc-test
         spec:
           restartPolicy: Never
           containers:
           - name: busybox-pvc-test
             image: m.daocloud.io/docker.io/library/busybox:latest
             command:
               - sh
               - -c
               - |
                 echo "Writing to PVC..."
                 RANDOM_STR=$(tr -dc A-Za-z0-9 </dev/urandom | head -c 16)
                 echo "hello local path provisioner $RANDOM_STR" > /data/hello.txt
                 echo "Reading from PVC..."
                 READ_STR=$(cat /data/hello.txt)
                 echo "Written content: hello local path provisioner $RANDOM_STR"
                 echo "Read content: $READ_STR"
                 if [ "$READ_STR" = "hello local path provisioner $RANDOM_STR" ]; then
                   echo "PVC test completed successfully!"
                 else
                   echo "PVC test failed!"
                   exit 1
                 fi
             volumeMounts:
             - name: opt-local-path-vol
               mountPath: /data
           volumes:
           - name: opt-local-path-vol
             persistentVolumeClaim:
               claimName: opt-local-path-pvc
     
     

2. apply to k8s

   • kubectl -n default apply -f busybox-pvc-test.yaml
     

3. check log of the test job

   • kubectl -n default logs job/busybox-pvc-test-job
     

4. delete job and pvc

   • kubectl -n default delete job busybox-pvc-test-job
     kubectl -n default delete pvc opt-local-path-pvc