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OpenvCloud CSI example

Prerequisites

Setup kubernetes cluster on OpenvCloud

  • Follow demo repo for kubespray on OpenvCloud here on the demo-terraform-ansible-kubespray repo.

    • Make sure you have your ssh key loaded configured in demo

  • SSH into mgmt VM and pass loaded keys: ssh ansible@<public-ip-of-the-cloudspace> -p 2222 -A

  • SSH into kubernetes master node: ssh ansible@192.168.103.250 (double check the IP on the G8 portal)

  • Too be able to access the kubernetes API, switch to the root user.
    From here there are 2 options to set up the CSI driver demo onto the Kubernetes cluster:

    • Copy the kube config file (~/.kube/config) onto your host.
      You may need to replace the certificate-authority-data: xxxx field with insecure-skip-tls-verify: true
    • Clone this repo onto the master node

Apply the example setup on the kubernetes cluster

From the example folder of this repo on the host where you can control the kubernetes cluster with the kubectl command:

  • Apply namespaces: kubectl apply -f namespaces

  • Apply secrets by first filling in the data according the names of the files in secret. Make sure the file has no appending new line.

    echo -n "my_g8_account_name"  > secret/account
echo -n "my_jwt_token"  > secret/client_jwt
echo -n "my_g8's_url"  > secret/url

    Then create the secret:

    kubectl create secret --namespace ovc-disk-csi generic ovc-disk-csi-driver-secret --from-file=secret

  • Apply driver configs: kubectl apply -f driver

  • Apply app configs: kubectl apply -f app

With kubectl get po -n demo -o wide you should now see the demo pod running. You should also see in the G8 portal that the disk is mounted onto the worker VM the pod is running on.

Deleting setup

kubectl delete -f app
kubectl delete -f driver
kubectl delete secret ovc-disk-csi-driver-secret --namespace ovc-disk-csi
kubectl delete -f namespaces