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Bulk Storage Provisioner#

AWS-specific instructions#

Info

The EFS info here is only applicable to AWS installations, but the basic process should be similar for all NFS volumes.

In order to create the necessary Bulk StorageClass, you will need to have an RWX-capable storage backend.

In this example, we will provide documentation to configure EFS as a NFS server, and configure that for use with Lagoon

Requirements#

  1. Provision and configure an EFS, taking note of any security group requirements (https://docs.aws.amazon.com/efs/latest/ug/mounting-fs-mount-cmd-dns-name.html)
  2. The DNS name for the mount target of the EFS volume - usually file-system-id.efs.aws-region.amazonaws.com
  3. Familiarity with the NFS CSI driver for Kubernetes - https://github.com/kubernetes-csi/csi-driver-nfs

Steps#

  1. Add Helm repository for the NFS CSI driver
    Add Helm repo
    helm repo add csi-driver-nfs https://raw.githubusercontent.com/kubernetes-csi/csi-driver-nfs/master/charts
  2. Configure the bulk StorageClass EFS NFS mount target in a values file. Note that this step also installs a secret into the namespace to handle deleting volumes, as per here

    csi-driver-nfs-storageclass.yaml
    apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: bulk
provisioner: nfs.csi.k8s.io
parameters:
  server: file-system-id.efs.aws-region.amazonaws.com
  share: /
  csi.storage.k8s.io/provisioner-secret-name: "mount-options"
  csi.storage.k8s.io/provisioner-secret-namespace: "csi-driver-nfs"
reclaimPolicy: Delete
volumeBindingMode: Immediate
mountOptions:
  - nfsvers=4.1
  - rsize=1048576
  - wsize=1048576
  - hard
  - timeo=600
  - retrans=2
  - noresvport
---
apiVersion: v1
kind: Secret
metadata:
  name: mount-options
  namespace: csi-driver-nfs
stringData:
  mountOptions: "nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,noresvport"
    3. Install the NFS CSI driver
    Install NFS CSI Driver
    helm upgrade --install --create-namespace \
  --namespace csi-driver-nfs --wait \
  csi-driver-nfs csi-driver-nfs/csi-driver-nfs
    4. Install the StorageClass and secret
    Install bulk StorageClass and Secret
    kubectl apply -f csi-driver-nfs-storageclass.yaml