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Merge pull request #311 from jacobwolfaws/master
Add Startup Taint Removal Feature
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charts/aws-fsx-csi-driver/templates/clusterrole-csi-node.yaml
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|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| --- | ||
| kind: ClusterRole | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| metadata: | ||
| name: fsx-csi-node-role | ||
| labels: | ||
| {{- include "aws-fsx-csi-driver.labels" . | nindent 4 }} | ||
| rules: | ||
| - apiGroups: [""] | ||
| resources: ["nodes"] | ||
| verbs: ["get", "patch"] |
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15
charts/aws-fsx-csi-driver/templates/clusterrolebinding-csi-node.yaml
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|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| --- | ||
| kind: ClusterRoleBinding | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| metadata: | ||
| name: fsx-csi-node-getter-binding | ||
| labels: | ||
| {{- include "aws-fsx-csi-driver.labels" . | nindent 4 }} | ||
| subjects: | ||
| - kind: ServiceAccount | ||
| name: {{ .Values.node.serviceAccount.name }} | ||
| namespace: {{ .Release.Namespace }} | ||
| roleRef: | ||
| kind: ClusterRole | ||
| name: fsx-csi-node-role | ||
| apiGroup: rbac.authorization.k8s.io |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,12 @@ | ||
| --- | ||
| # Source: aws-fsx-csi-driver/templates/clusterrole-csi-node.yaml | ||
| kind: ClusterRole | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| metadata: | ||
| name: fsx-csi-node-role | ||
| labels: | ||
| app.kubernetes.io/name: aws-fsx-csi-driver | ||
| rules: | ||
| - apiGroups: [""] | ||
| resources: ["nodes"] | ||
| verbs: ["get", "patch"] |
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| --- | ||
| # Source: aws-fsx-csi-driver/templates/clusterrolebinding-csi-node.yaml | ||
| kind: ClusterRoleBinding | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| metadata: | ||
| name: fsx-csi-node-getter-binding | ||
| labels: | ||
| app.kubernetes.io/name: aws-fsx-csi-driver | ||
| subjects: | ||
| - kind: ServiceAccount | ||
| name: fsx-csi-node-sa | ||
| namespace: default | ||
| roleRef: | ||
| kind: ClusterRole | ||
| name: fsx-csi-node-role | ||
| apiGroup: rbac.authorization.k8s.io |
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| # Installation | ||
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| ## Prerequisites | ||
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| * Kubernetes Version >= 1.20 | ||
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| * If you are using a self managed cluster, ensure the flag `--allow-privileged=true` for `kube-apiserver`. | ||
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| * Important: If you intend to use the Volume Snapshot feature, the [Kubernetes Volume Snapshot CRDs](https://github.com/kubernetes-csi/external-snapshotter/tree/master/client/config/crd) must be installed **before** the FSx for OpenZFS CSI driver. For installation instructions, see [CSI Snapshotter Usage](https://github.com/kubernetes-csi/external-snapshotter#usage). | ||
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| ## Installation | ||
| ### Set up driver permissions | ||
| The driver requires IAM permissions to interact with the Amazon FSx for Lustre service to create/delete file systems and volumes on the user's behalf. | ||
| There are several methods to grant the driver IAM permissions: | ||
| * Using [IAM roles for ServiceAccounts](https://docs.aws.amazon.com/eks/latest/userguide/iam-roles-for-service-accounts.html) (**Recommended**) - Create a Kubernetes service account for the driver and attach the AmazonFSxFullAccess AWS-managed policy to it with the following command. If your cluster is in the AWS GovCloud Regions, then replace arn:aws: with arn:aws-us-gov. Likewise, if your cluster is in the AWS China Regions, replace arn:aws: with arn:aws-cn: | ||
| ```sh | ||
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| export cluster_name=my-csi-fsx-cluster | ||
| export region_code=region-code | ||
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| eksctl create iamserviceaccount \ | ||
| --name fsx-csi-controller-sa \ | ||
| --namespace kube-system \ | ||
| --cluster $cluster_name \ | ||
| --attach-policy-arn arn:aws:iam::aws:policy/AmazonFSxFullAccess \ | ||
| --approve \ | ||
| --role-name AmazonEKSFSxLustreCSIDriverFullAccess \ | ||
| --region $region_code | ||
| ``` | ||
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| * Using IAM [instance profile](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use_switch-role-ec2_instance-profiles.html) - Create the following IAM policy and attach the policy to the instance profile IAM role of your cluster's worker nodes. | ||
| See [here](https://docs.aws.amazon.com/eks/latest/userguide/create-node-role.html) for guidelines on how to access your EKS node IAM role. | ||
| ```sh | ||
| { | ||
| "Version": "2012-10-17", | ||
| "Statement": [ | ||
| { | ||
| "Effect": "Allow", | ||
| "Action": [ | ||
| "iam:CreateServiceLinkedRole", | ||
| "iam:AttachRolePolicy", | ||
| "iam:PutRolePolicy" | ||
| ], | ||
| "Resource": "arn:aws:iam::*:role/aws-service-role/s3.data-source.lustre.fsx.amazonaws.com/*" | ||
| }, | ||
| { | ||
| "Action":"iam:CreateServiceLinkedRole", | ||
| "Effect":"Allow", | ||
| "Resource":"*", | ||
| "Condition":{ | ||
| "StringLike":{ | ||
| "iam:AWSServiceName":[ | ||
| "fsx.amazonaws.com" | ||
| ] | ||
| } | ||
| } | ||
| }, | ||
| { | ||
| "Effect": "Allow", | ||
| "Action": [ | ||
| "s3:ListBucket", | ||
| "fsx:CreateFileSystem", | ||
| "fsx:DeleteFileSystem", | ||
| "fsx:DescribeFileSystems", | ||
| "fsx:TagResource" | ||
| ], | ||
| "Resource": ["*"] | ||
| } | ||
| ] | ||
| } | ||
| ``` | ||
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| ### Configure driver toleration settings | ||
| By default, the driver controller tolerates taint `CriticalAddonsOnly` and has `tolerationSeconds` configured as `300`; and the driver node tolerates all taints. | ||
| If you don't want to deploy the driver node on all nodes, please set Helm `Value.node.tolerateAllTaints` to false before deployment. | ||
| Add policies to `Value.node.tolerations` to configure customized toleration for nodes. | ||
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| ### Configure node startup taint | ||
| There are potential race conditions on node startup (especially when a node is first joining the cluster) where pods/processes that rely on the FSx for Lustre CSI Driver can act on a node before the FSx for Lustre CSI Driver is able to start up and become fully ready. To combat this, the FSx for Lustre CSI Driver contains a feature to automatically remove a taint from the node on startup. Users can taint their nodes when they join the cluster and/or on startup, to prevent other pods from running and/or being scheduled on the node prior to the FSx for Lustre CSI Driver becoming ready. | ||
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| This feature is activated by default, and cluster administrators should use the taint `fsx.csi.aws.com/agent-not-ready:NoExecute` (any effect will work, but `NoExecute` is recommended). For example, EKS Managed Node Groups [support automatically tainting nodes](https://docs.aws.amazon.com/eks/latest/userguide/node-taints-managed-node-groups.html). | ||
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| ### Deploy driver | ||
| You may deploy the FSx for Lustre CSI driver via Kustomize or Helm | ||
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| #### Kustomize | ||
| ```sh | ||
| kubectl apply -k "github.com/kubernetes-sigs/aws-fsx-csi-driver/deploy/kubernetes/overlays/stable/?ref=master" | ||
| ``` | ||
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| *Note: Using the master branch to deploy the driver is not supported as the master branch may contain upcoming features incompatible with the currently released stable version of the driver.* | ||
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| #### Helm | ||
| - Add the `aws-fsx-csi-driver` Helm repository. | ||
| ```sh | ||
| helm repo add aws-fsx-csi-driver https://kubernetes-sigs.github.io/aws-fsx-csi-driver | ||
| helm repo update | ||
| ``` | ||
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| - Install the latest release of the driver. | ||
| ```sh | ||
| helm upgrade --install aws-fsx-csi-driver \ | ||
| --namespace kube-system \ | ||
| aws-fsx-csi-driver/aws-fsx-csi-driver | ||
| ``` | ||
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| Review the [configuration values](https://github.com/kubernetes-sigs/aws-fsx-openzfs-csi-driver/blob/master/charts/aws-fsx-csi-driver/values.yaml) for the Helm chart. | ||
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| #### Once the driver has been deployed, verify the pods are running: | ||
| ```sh | ||
| kubectl get pods -n kube-system -l app.kubernetes.io/name=aws-fsx-csi-driver | ||
| ``` |
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