csi-driver for Anexia

This is a csi-driver for Anexia!

Prerequirements

1. Anexia Engine account with Dynamic Volume (ADV) module enabled
2. ADV Storage Server Interface created in a IPAM prefix with role SCND unrouted unique
3. K8s nodes with network access to the Storage Server Interface
4. Anexia Engine service-account token with:

• full ADV permissions
• IP Space - View All

5. rpc-statd service running on hosts (included in nfs-common package)
   • alternatively add the 'nolock' option to mountOptions on StorageClass or PersistentVolume.spec if global file locking is not needed

Installation

Note

If you create a K8s cluster using Anexias Kubernetes Engine (AKE) with a SCND unrouted unique IPAM prefix configured and have an ADV enabled Engine account, the CSI driver will automatically be deployed and configured with a default StorageClass using ENT2 storage called anexia-ent2.

To install the CSI driver and configure a StorageClass in a K8s cluster not managed by Anexia, you can apply the following steps to get it running:

Important

Make sure to set both $ANEXIA_TOKEN and $STORAGE_SERVER_INTERFACE_ID with the data from the prerequirements. We recommend to execute the following steps in an empty directory as it creates a new file (kustomization.yaml) in the current working directory.

# Create secret from Anexia Engine service-account token
$ kubectl create secret generic csi-driver-anexia --from-literal=token=$ANEXIA_TOKEN -n kube-system

# Create a deployment kustomization using the id of the storage-server-interface
# Note: you can also apply deploy/kubernetes/{rbac,driver}.yaml individualy if you don't want to use kustomize
$ cat <<EOT > ./kustomization.yaml
resources:
  - github.com/anexia/csi-driver/deploy/kubernetes

patches:
  - patch: |-
      - op: replace
        path: /parameters/csi.anx.io~1storage-server-identifier
        value: "$STORAGE_SERVER_INTERFACE_ID"
    target:
      kind: StorageClass
      name: anexia-ent2
EOT

# Apply the deployment kustomization
$ kubectl apply -k .

Configuration

StorageClass

Important

Make sure to set the $STORAGE_SERVER_INTERFACE_ID environment variable with the ADV Storage Server Interface identifier set as value.

kubectl apply -f - <<EOF
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: anexia-ent2
provisioner: csi.anx.io
parameters:
  csi.anx.io/ads-class: ENT2
  csi.anx.io/storage-server-identifier: $STORAGE_SERVER_INTERFACE_ID
allowVolumeExpansion: true
EOF

Enable fsGroup support (optional)

Example configuration:

kubectl apply -f - <<EOF
apiVersion: storage.k8s.io/v1
kind: CSIDriver
metadata:
  name: csi.anx.io
spec:
  fsGroupPolicy: File
EOF

Consult the Kubernetes CSI Developer Documentation for further information.