README.md

hardware

• pi4 x3 control-plane nodes
• pi4 x1 worker nodes
• Attached disks on /dev/sda on each node

Install

I don't think I enabled coreDNS by default

• install_cstor.sh
• follow this installer https://github.com/cloud-native-skunkworks/gitops-kubernetes-bootstrap
• Modify the storageclass to cstor

Results

Within 72 hours the control-plane-0 was unconnectable and the other control-plane nodes were unable to serve the API

cspc.yaml

apiVersion: cstor.openebs.io/v1
kind: CStorPoolCluster
metadata:
 name: cstor-disk-pool
 namespace: openebs
spec:
 pools:
   - nodeSelector:
       kubernetes.io/hostname: raspbernetes-0
     dataRaidGroups:
       - blockDevices:
           - blockDeviceName: sda
     poolConfig:
       dataRaidGroupType: "stripe"
   - nodeSelector:
       kubernetes.io/hostname: raspbernetes-1
     dataRaidGroups:
       - blockDevices:
           - blockDeviceName: sda
     poolConfig:
       dataRaidGroupType: "stripe"
   - nodeSelector:
       kubernetes.io/hostname: raspbernetes-2
     dataRaidGroups:
       - blockDevices:
           - blockDeviceName: sda
     poolConfig:
       dataRaidGroupType: "stripe"
   - nodeSelector:
       kubernetes.io/hostname: raspbernetes-3
     dataRaidGroups:
       - blockDevices:
           - blockDeviceName: sda
     poolConfig:
       dataRaidGroupType: "stripe"

install-cstor.sh

helm repo add openebs https://openebs.github.io/charts
helm repo update
helm install openebs --namespace openebs openebs/openebs --set cstor.enabled=true --create-namespace

sc.yaml

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: cstor
provisioner: cstor.csi.openebs.io
allowVolumeExpansion: true
parameters:
  cas-type: cstor
  # cstorPoolCluster should have the name of the CSPC
  cstorPoolCluster: cstor-disk-pool
  # replicaCount should be <= no. of CSPI created in the selected CSPC
  replicaCount: "3"