EKS使用AWS EFS CSI

EKS持久化存储-AWS EFS

必要前提

1. 集群已有IAM OIDC提供程序
2. 安装AWS CLI（1.25.46及以上）
3. 安装kubectl、eksctl工具

集群侧EFS CSI部署

权限配置

创建AWS IAM policy绑定到集群serviceaccount以授予EFS CSI调用AWS API的权限

1. 下载IAM policy模板

curl -o iam-policy-example.json https://raw.githubusercontent.com/kubernetes-sigs/aws-efs-csi-driver/master/docs/iam-policy-example.json

2.创建IAM policy

aws iam create-policy \
    --policy-name AmazonEKS_EFS_CSI_Driver_Policy \
    --policy-document file://iam-policy-example.json

3.创建IAM Role并附件上述IAM policy，将其绑定到集群serviceaccount
对应集群名字及aws区域id请根据实际环境配置

eksctl create iamserviceaccount \
    --cluster my-cluster \
    --namespace kube-system \
    --name efs-csi-controller-sa \
    --attach-policy-arn arn:aws:iam::111122223333:policy/AmazonEKS_EFS_CSI_Driver_Policy \
    --approve \
    --region region-code

安装EFS CSI驱动

1. 添加helm repo

helm repo add aws-efs-csi-driver https://kubernetes-sigs.github.io/aws-efs-csi-driver/

2.更新repo

helm repo update

3.hlem安装EFS CSI驱动

helm upgrade -i aws-efs-csi-driver aws-efs-csi-driver/aws-efs-csi-driver \
    --namespace kube-system \
    --set image.repository=918309763551.dkr.ecr.cn-north-1.amazonaws.com.cn/eks/aws-efs-csi-driver \
    --set controller.serviceAccount.create=false \
    --set controller.serviceAccount.name=efs-csi-controller-sa

4.StorageClass部署

• 下载aws官方提供的StorageClass模板：

curl -o storageclass.yaml https://raw.githubusercontent.com/kubernetes-sigs/aws-efs-csi-driver/master/examples/kubernetes/dynamic_provisioning/specs/storageclass.yaml

• 更改fileSystemId值为你的EFS ID

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: efs-sc
provisioner: efs.csi.aws.com
parameters:
  provisioningMode: efs-ap
  fileSystemId: fs-92107410
  directoryPerms: "700"
  gidRangeStart: "1000" # optional
  gidRangeEnd: "2000" # optional
  basePath: "/dynamic_provisioning" # optiona

• 部署

kubectl apply -f storageclass.yaml

EFS侧配置

1.将eks集群所在VPC、Subnet添加为EFS挂载目标
2.挂载目标的安全组开通入站端口2049,源地址为eks集群所在cidr

集群应用侧配置

1. 创建pvc
2. 将pvc配置到应用yaml中

官方文档链接参考：
https://docs.amazonaws.cn/eks/latest/userguide/efs-csi.html
https://kubernetes.io/zh-cn/docs/concepts/storage/persistent-volumes/