|
| 1 | +--- |
| 2 | +title: How to use SFS with Kubernetes Kapsule |
| 3 | +description: This page explains how to use the Scaleway File Storage Container Storage Interface (CSI) driver to enable Kubernetes users to manage Scaleway File Storage volumes within their clusters. |
| 4 | +tags: kubernetes kubernetes-kapsule kapsule sfs |
| 5 | +dates: |
| 6 | + validation: 2025-10-22 |
| 7 | + posted: 2025-10-22 |
| 8 | +categories: |
| 9 | + - containers |
| 10 | + - kubernetes |
| 11 | +--- |
| 12 | +import Requirements from '@macros/iam/requirements.mdx' |
| 13 | + |
| 14 | +The Scaleway File Storage Container Storage Interface (CSI) driver enables Kubernetes users to manage Scaleway File Storage file systems within their clusters. |
| 15 | +The Scaleway File Storage CSI driver is designed to work with Kubernetes Kapsule and Kosmos clusters, providing a standardized interface to create, manage, and attach file storage volumes to your containerized workloads. For more details on Scaleway File Storage, refer to the [Scaleway File Storage documentation](https://www.scaleway.com/en/docs/file-storage/). |
| 16 | + |
| 17 | +## Supported features |
| 18 | + |
| 19 | +The Scaleway File Storage CSI driver supports the following features: |
| 20 | + |
| 21 | +- Dynamic provisioning: Automatically create Scaleway File Storage volumes using PVCs and StorageClasses. |
| 22 | +- Import of existing Volumes: Integrate pre-existing Scaleway File Storage volumes into Kubernetes. |
| 23 | +- Volume upsizing: The size of the volume can be [increased](https://github.com/scaleway/scaleway-filestorage-csi/tree/main?tab=readme-ov-file#file-systems-resizing) without the need to detach the file system |
| 24 | +- `ReadWriteOnce` access mode: The volume can be mounted as read-write by a single node. |
| 25 | +- `ReadOnlyMany` access mode: The volume can be mounted read-only by many nodes. |
| 26 | +- `ReadWriteMany` access mode: The volume can be mounted as read-write by many nodes. |
| 27 | + |
| 28 | +<Message type="important"> |
| 29 | + Ensure you have created your Kapsule cluster with the tag `scw-filestorage-csi` (or added it to an existing cluster) to have the File Storage CSI driver enabled on your cluster. |
| 30 | + Keep in mind, this tag must be specified at the **cluster level** rather than at the pool level. Setting it at the pool level has no effect. |
| 31 | +</Message> |
| 32 | + |
| 33 | +<Requirements /> |
| 34 | + |
| 35 | +- A Scaleway account logged into the [console](https://console.scaleway.com) |
| 36 | +- [Owner](/iam/concepts/#owner) status or [IAM permissions](/iam/concepts/#permission) allowing you to perform actions in the intended Organization |
| 37 | +- [Created](/kubernetes/how-to/create-cluster/) a Kubernetes Kapsule cluster |
| 38 | +- Installed the Kubernetes command-line tool `kubectl` |
| 39 | +- Added the tag `scw-filestorage-csi` to your Kubernetes Kapsule cluster |
| 40 | +- Access to the Scaleway [File Storage API](https://www.scaleway.com/en/developers/api/file-storage/) |
| 41 | + |
| 42 | +## Installation |
| 43 | + |
| 44 | +The Scaleway File Storage CSI driver is preinstalled on Scaleway's managed Kubernetes. |
| 45 | + |
| 46 | +<Message type="tip"> |
| 47 | + Download the cluster's **kubeconfig** configuration file and make sure `kubectl` is configured to use the cluster's configuration before running any of the following commands. [Learn more.](/kubernetes/how-to/connect-cluster-kubectl/) |
| 48 | +</Message> |
| 49 | + |
| 50 | +<Message type="note"> |
| 51 | + This feature is currently in [Private Beta](https://www.scaleway.com/en/betas/#file-storage) and available to selected testers only. If you would like to sign up for the Private Beta to enable `ReadWriteMany`, fill out [this form](https://www.scaleway.com/en/betas/#file-storage). |
| 52 | +</Message> |
| 53 | + |
| 54 | +You can run the following command to check that the CSI driver pods are running: |
| 55 | + |
| 56 | + ```bash |
| 57 | + kubectl get pods -n kube-system -l app=filestorage-csi-node |
| 58 | + ``` |
| 59 | + |
| 60 | +You should see the `filestorage-csi-node` pods in a `Running` state. |
| 61 | +If you don't see any pod after running the previous command, make sure the `filestorage-csi-node` DaemonSet is present in your cluster (`$ kubectl get daemonset -n kube-system filestorage-csi-node`) and you have at least one pool with POP2 Instances. |
| 62 | + |
| 63 | +## Using the Scaleway File Storage CSI Driver |
| 64 | + |
| 65 | +The CSI driver supports dynamic provisioning of Persistent Volumes (PVs) and Persistent Volume Claims (PVCs). |
| 66 | + |
| 67 | +### Creating a Persistent Volume Claim (PVC) |
| 68 | + |
| 69 | +1. Create a file named `pvc.yaml`: |
| 70 | + |
| 71 | + ```yaml |
| 72 | + apiVersion: v1 |
| 73 | + kind: PersistentVolumeClaim |
| 74 | + metadata: |
| 75 | + name: my-pvc |
| 76 | + spec: |
| 77 | + accessModes: |
| 78 | + - ReadWriteMany |
| 79 | + resources: |
| 80 | + requests: |
| 81 | + storage: 100G |
| 82 | + storageClassName: scw-fs |
| 83 | + ``` |
| 84 | +
|
| 85 | + <Message type="note"> |
| 86 | + The minimum size for a File System is 100G. |
| 87 | + </Message> |
| 88 | +
|
| 89 | + Apply it: |
| 90 | +
|
| 91 | + ```bash |
| 92 | + kubectl apply -f pvc.yaml |
| 93 | + ``` |
| 94 | + |
| 95 | +2. Create a file named `pod.yaml`: |
| 96 | + |
| 97 | + ```yaml |
| 98 | + apiVersion: v1 |
| 99 | + kind: Pod |
| 100 | + metadata: |
| 101 | + name: my-app |
| 102 | + spec: |
| 103 | + containers: |
| 104 | + - name: my-busybox |
| 105 | + image: busybox |
| 106 | + volumeMounts: |
| 107 | + - name: my-volume |
| 108 | + mountPath: "/data" |
| 109 | + command: ["/bin/sh", "-c"] |
| 110 | + args: ["tail -f /dev/null"] |
| 111 | + volumes: |
| 112 | + - name: my-volume |
| 113 | + persistentVolumeClaim: |
| 114 | + claimName: my-pvc |
| 115 | + ``` |
| 116 | +
|
| 117 | + Apply the pod configuration: |
| 118 | +
|
| 119 | + ```bash |
| 120 | + kubectl apply -f pod.yaml |
| 121 | + ``` |
| 122 | + |
| 123 | +3. Verify the mount: |
| 124 | + |
| 125 | + ```bash |
| 126 | + kubectl get pods |
| 127 | + kubectl exec -it my-app -- df -h /data |
| 128 | + ``` |
| 129 | + |
| 130 | +### Importing an existing File Storage volume |
| 131 | + |
| 132 | +<Message type="note"> |
| 133 | + To import an existing File Storage volume you must have created it using the [Scaleway console](/file-storage/how-to/create-file-system/), [CLI](https://cli.scaleway.com/file/#create-a-new-filesystem), or the [File Storage API](https://www.scaleway.com/en/developers/api/file-storage/#path-filesystem-create-a-new-filesystem) prior the attachment. |
| 134 | +</Message> |
| 135 | + |
| 136 | +1. Create a `pv-import.yaml` file: |
| 137 | + |
| 138 | + ```yaml |
| 139 | + apiVersion: v1 |
| 140 | + kind: PersistentVolume |
| 141 | + metadata: |
| 142 | + name: test-pv |
| 143 | + spec: |
| 144 | + capacity: |
| 145 | + storage: 100G |
| 146 | + volumeMode: Filesystem |
| 147 | + accessModes: |
| 148 | + - ReadWriteMany |
| 149 | + storageClassName: scw-fs |
| 150 | + csi: |
| 151 | + driver: filestorage.csi.scaleway.com |
| 152 | + volumeHandle: fr-par/11111111-1111-1111-111111111111 |
| 153 | + nodeAffinity: |
| 154 | + required: |
| 155 | + nodeSelectorTerms: |
| 156 | + - matchExpressions: |
| 157 | + - key: topology.filestorage.csi.scaleway.com/region |
| 158 | + operator: In |
| 159 | + values: |
| 160 | + - fr-par |
| 161 | + ``` |
| 162 | +
|
| 163 | + Replace `volumeHandle` with the actual ID of your existing volume. |
| 164 | + |
| 165 | + Apply: |
| 166 | + |
| 167 | + ```bash |
| 168 | + kubectl apply -f pv-import.yaml |
| 169 | + ``` |
| 170 | + |
| 171 | +2. Create `pvc-import.yaml`: |
| 172 | + |
| 173 | + ```yaml |
| 174 | + apiVersion: v1 |
| 175 | + kind: PersistentVolumeClaim |
| 176 | + metadata: |
| 177 | + name: my-imported-pvc |
| 178 | + spec: |
| 179 | + accessModes: |
| 180 | + - ReadWriteMany |
| 181 | + resources: |
| 182 | + requests: |
| 183 | + storage: 100G |
| 184 | + storageClassName: scw-fs |
| 185 | + volumeName: test-pv |
| 186 | + ``` |
| 187 | + |
| 188 | + Apply: |
| 189 | + |
| 190 | + ```bash |
| 191 | + kubectl apply -f pvc-import.yaml |
| 192 | + ``` |
| 193 | + |
| 194 | +3. Create the pod (reuse the example from earlier with `claimName: my-imported-pvc`): |
| 195 | + |
| 196 | + ```yaml |
| 197 | + apiVersion: v1 |
| 198 | + kind: Pod |
| 199 | + metadata: |
| 200 | + name: my-imported-app |
| 201 | + spec: |
| 202 | + containers: |
| 203 | + - name: my-busybox |
| 204 | + image: busybox |
| 205 | + volumeMounts: |
| 206 | + - name: my-volume |
| 207 | + mountPath: "/data" |
| 208 | + command: ["/bin/sh", "-c"] |
| 209 | + args: ["tail -f /dev/null"] |
| 210 | + volumes: |
| 211 | + - name: my-volume |
| 212 | + persistentVolumeClaim: |
| 213 | + claimName: my-imported-pvc |
| 214 | + ``` |
| 215 | + |
| 216 | + Apply: |
| 217 | + |
| 218 | + ```bash |
| 219 | + kubectl apply -f pod.yaml |
| 220 | + ``` |
| 221 | + |
| 222 | +4. Verify: |
| 223 | + |
| 224 | + ```bash |
| 225 | + kubectl get pods |
| 226 | + kubectl exec -it my-imported-app -- ls /data |
| 227 | + ``` |
| 228 | + |
| 229 | +### Using a custom storage class |
| 230 | + |
| 231 | +1. Create `storageclass.yaml`: |
| 232 | + |
| 233 | + ```yaml |
| 234 | + apiVersion: storage.k8s.io/v1 |
| 235 | + kind: StorageClass |
| 236 | + metadata: |
| 237 | + name: my-default-storage-class |
| 238 | + provisioner: filestorage.csi.scaleway.com |
| 239 | + reclaimPolicy: Delete |
| 240 | + ``` |
| 241 | + |
| 242 | + Apply: |
| 243 | + |
| 244 | + ```bash |
| 245 | + kubectl apply -f storageclass.yaml |
| 246 | + ``` |
| 247 | + |
| 248 | +2. Update the PVC to use this storage class: |
| 249 | + |
| 250 | + ```yaml |
| 251 | + apiVersion: v1 |
| 252 | + kind: PersistentVolumeClaim |
| 253 | + metadata: |
| 254 | + name: my-pvc |
| 255 | + spec: |
| 256 | + accessModes: |
| 257 | + - ReadWriteMany |
| 258 | + resources: |
| 259 | + requests: |
| 260 | + storage: 100G |
| 261 | + storageClassName: my-default-storage-class |
| 262 | + ``` |
| 263 | + |
| 264 | +### Specifying the region |
| 265 | + |
| 266 | +To specify a region explicitly for volume creation: |
| 267 | + |
| 268 | +```yaml |
| 269 | +apiVersion: storage.k8s.io/v1 |
| 270 | +kind: StorageClass |
| 271 | +metadata: |
| 272 | + name: my-par-storage-class |
| 273 | +provisioner: filestorage.csi.scaleway.com |
| 274 | +reclaimPolicy: Delete |
| 275 | +allowedTopologies: |
| 276 | + - matchLabelExpressions: |
| 277 | + - key: topology.filestorage.csi.scaleway.com/region |
| 278 | + values: |
| 279 | + - fr-par |
| 280 | +``` |
| 281 | + |
| 282 | +<Message type="tip"> |
| 283 | + For further information, refer to the [Scaleway File Storage CSI driver](https://github.com/scaleway/scaleway-filestorage-csi/tree/main) documentation. |
| 284 | +</Message> |
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