Provision_CStor_Pool_Using_DAO.md

Prerequisite

OpenEBS must be installed.

Install cspc-operator

To provision a CSPC using dao you need to install cspc-operator from alpha feature

Install cstorpoolauto DAO operator

Sample cstorpoolauto DAO operator yaml is given below.

NOTE:- you can install it in any namespace.

apiVersion: v1
kind: Namespace
metadata:
  name: maya-system
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: cstorpoolauto
  namespace: maya-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: cstorpoolauto
rules:
- apiGroups:
  - "*"
  resources:
  - cstorclusterconfigs
  - blockdevices
  - cstorpoolclusters
  - nodes
  verbs:
  - get
  - list
  - watch
  - create
  - update
  - delete
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: cstorpoolauto
subjects:
- kind: ServiceAccount
  name: cstorpoolauto
  namespace: maya-system
roleRef:
  kind: ClusterRole
  name: cstorpoolauto
  apiGroup: rbac.authorization.k8s.io
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: cstorclusterconfigs.dao.mayadata.io
  labels:
    name: cstorclusterconfig
spec:
  group: dao.mayadata.io
  version: v1alpha1
  scope: Namespaced
  names:
    plural: cstorclusterconfigs
    singular: cstorclusterconfig
    kind: CStorClusterConfig
    shortNames:
    - cscconfig
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  labels:
    app.mayadata.io/name: cstorpoolauto
    name: cstorpoolauto
  name: cstorpoolauto
  namespace: maya-system
spec:
  replicas: 1
  selector:
    matchLabels:
      app.mayadata.io/name: cstorpoolauto
      name: cstorpoolauto
  serviceName: ""
  template:
    metadata:
      labels:
        app.mayadata.io/name: cstorpoolauto
        name: cstorpoolauto
    spec:
      serviceAccountName: cstorpoolauto
      containers:
      - name: cstorpoolauto
        image: mayadataio/cstorpoolauto:v1.11.2
        command: ["/usr/bin/cstorpoolauto"]
        args:
        - --logtostderr
        - --run-as-local
        - -v=5
        - --discovery-interval=40s
        - --cache-flush-interval=240s
        - --metac-config-path=/etc/config/metac/localdevice/

Steps to create a cspc

Label the selected block devices using which you want to create a CSPC.

NOTE:- each selected block device should be in Active and Unclaimed state and there should not be any file system.

Modify and apply the CStorClusterConfig. One sample CStorClusterConfig is given below.

NOTE:- You need to create CStorClusterConfig in the same namespace in which OpenEBS is installed.

apiVersion: dao.mayadata.io/v1alpha1
kind: CStorClusterConfig
metadata:
 name: mirror-mysql-pool
 namespace: openebs
spec:
 diskConfig:
   local:
     blockDeviceSelector:
       selectorTerms:
       - matchLabels:
           mirror-pool: mysql
           # Selected block devices should labeled with `mirror-pool=mysql`
           # If you lobal your block devices with different key and value
           # then update matchLabels accordingly.
 poolConfig:
   raidType: mirror