PowerFlex

Configuring PowerFlex CSI Driver with CSM for Authorization

Given a setup where Kubernetes, a storage system, and the CSM for Authorization Proxy Server are deployed, follow these steps to configure the CSI Drivers to work with the Authorization sidecar:

  1. Apply the secret containing the token data into the driver namespace. It’s assumed that the Kubernetes administrator has the token secret manifest saved in /tmp/token.yaml.

    # It is assumed that array type powerflex has the namepace "vxflexos".
kubectl apply -f /tmp/token.yaml -n vxflexos

  2. Edit these parameters in samples/secret/karavi-authorization-config.json file in the CSI PowerFlex driver and update/add connection information for one or more backend storage arrays. In an instance where multiple CSI drivers are configured on the same Kubernetes cluster, the port range in the endpoint parameter must be different for each driver.

Parameter Description Required Default
username Username for connecting to the backend storage array. This parameter is ignored. No -
password Password for connecting to to the backend storage array. This parameter is ignored. No -
intendedEndpoint HTTPS REST API endpoint of the backend storage array. Yes -
endpoint HTTPS localhost endpoint that the authorization sidecar will listen on. Yes https://localhost:9400
systemID System ID of the backend storage array. Yes " "
skipCertificateValidation A boolean that enables/disables certificate validation of the backend storage array. This parameter is not used. No true
isDefault A boolean that indicates if the array is the default array. This parameter is not used. No default value from values.yaml

Create the karavi-authorization-config secret using this command:

kubectl -n vxflexos create secret generic karavi-authorization-config --from-file=config=samples/secret/karavi-authorization-config.json -o yaml --dry-run=client | kubectl apply -f -

Note:

  • Create the driver secret as you would normally except update/add the connection information for communicating with the sidecar instead of the backend storage array and scrub the username and password.

  1. Create the proxy-server-root-certificate secret.

    If running in insecure mode, create the secret with empty data:

    kubectl -n vxflexos create secret generic proxy-server-root-certificate --from-literal=rootCertificate.pem= -o yaml --dry-run=client | kubectl apply -f -

    Otherwise, create the proxy-server-root-certificate secret with the appropriate file:

    kubectl -n vxflexos create secret generic proxy-server-root-certificate --from-file=rootCertificate.pem=/path/to/rootCA -o yaml --dry-run=client | kubectl apply -f -

  2. Please refer to step 4 in the installation steps for PowerFlex to edit the parameters in samples/config.yaml file to communicate with the sidecar.

    Update endpoint to match the endpoint in samples/secret/karavi-authorization-config.json

  3. Create the vxflexos-config secret using this command:

    kubectl create secret generic vxflexos-config -n vxflexos --from-file=config=config.yaml -o yaml --dry-run=client | kubectl apply -f -

  4. Please refer to step 9 in the installation steps for PowerFlex to edit the parameters in myvalues.yaml file to communicate with the sidecar.

    Enable CSM for Authorization and provide the proxyHost address

  5. Install the CSI PowerFlex driver

  6. (Optional) Install dellctl to perform Kubernetes administrator commands for additional capabilities (e.g., list volumes). Please refer to the dellctl documentation page for the installation steps and command list.