【k8s 从0安装一个local-path插件】

创建sc，cm ，local-path插件

创建storageclass（cluster资源）

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  annotations:
    defaultVolumeType: local
  name: base-local-path
provisioner: rancher.io/local-path
reclaimPolicy: Retain
volumeBindingMode: WaitForFirstConsumer

创建命名空间级别的configmap

apiVersion: v1
data:
  config.json: |-
    {
            "nodePathMap":[
            {
                    "node":"DEFAULT_PATH_FOR_NON_LISTED_NODES",
                    "paths":["/opt/local-path-zcy"] # 指定目录
            }
            ]
    }
  helperPod.yaml: |-
    apiVersion: v1
    kind: Pod
    metadata:
      name: helper-pod
    spec:
      containers:
      - name: helper-pod
        image: busybox
        imagePullPolicy: IfNotPresent
  setup: |-
    #!/bin/sh
    set -eu
    mkdir -m 0777 -p "$VOL_DIR"
  teardown: |-
    #!/bin/sh
    set -eu
    rm -rf "$VOL_DIR"
kind: ConfigMap
metadata:
  name: local-path-config
  namespace: middleware

配置 sa及clusterrolebinding

apiVersion: v1
kind: ServiceAccount
metadata:
  name: local-path-provisioner-service-account
  namespace: middleware
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: local-path-provisioner-bind-bigdata
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: local-path-provisioner-role
subjects:
- kind: ServiceAccount
  name: local-path-provisioner-service-account
  namespace: middleware

查看clusterrole（一般情况可共用）

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: local-path-provisioner-role
rules:
- apiGroups:
  - ""
  resources:
  - nodes
  - persistentvolumeclaims
  - configmaps
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - ""
  resources:
  - endpoints
  - persistentvolumes
  - pods
  verbs:
  - '*'
- apiGroups:
  - ""
  resources:
  - events
  verbs:
  - create
  - patch
- apiGroups:
  - storage.k8s.io
  resources:
  - storageclasses
  verbs:
  - get
  - list
  - watch

创建local-path-provisioner

apiVersion: apps/v1
kind: Deployment
metadata:
  name: local-path-provisioner
  namespace: bigdata
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: local-path-provisioner
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: local-path-provisioner
    spec:
      containers:
      - command:
        - local-path-provisioner
        - --debug
        - start
        - --config
        - /etc/config/config.json
        env:
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.namespace
        image: rancher/local-path-provisioner:v0.0.24
        imagePullPolicy: IfNotPresent
        name: local-path-provisioner
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /etc/config/
          name: config-volume
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      serviceAccount: local-path-provisioner-service-account
      serviceAccountName: local-path-provisioner-service-account
      terminationGracePeriodSeconds: 30
      volumes:
      - configMap:
          defaultMode: 420
          name: local-path-config
        name: config-volume