PowerScale

Configuring PowerScale 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:

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 powerscale has the namespace "isilon".
kubectl apply -f /tmp/token.yaml -n isilon
```
Edit these parameters in samples/secret/karavi-authorization-config.json file in CSI PowerScale 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 isilon 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

The systemID will be the clusterName of the array.

The isilon-creds secret has a mountEndpoint parameter which must be set to the hostname or IP address of the PowerScale OneFS API server, for example, 10.0.0.1.

Create the proxy-server-root-certificate secret.

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

kubectl -n isilon 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 isilon create secret generic proxy-server-root-certificate --from-file=rootCertificate.pem=/path/to/rootCA -o yaml --dry-run=client | kubectl apply -f -
Please refer to step 5 in the installation steps for PowerScale to edit the parameters in my-isilon-settings.yaml to communicate with the sidecar.

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

Notes:

In my-isilon-settings.yaml, endpointPort acts as a default value. If endpointPort is not specified in my-isilon-settings.yaml, then it should be specified in the endpoint parameter of samples/secret/secret.yaml.

Enable CSM for Authorization and provide the proxyHost address
Please refer to step 6 in the installation steps for PowerScale to edit the parameters in samples/secret/secret.yaml file to communicate with the sidecar.

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

Notes:

Only add the endpoint port if it has not been set in my-isilon-settings.yaml.

The isilon-creds secret has a mountEndpoint parameter which must be set to the hostname or IP address of the PowerScale OneFS API server, for example, 10.0.0.1.

Create the isilon-creds secret using this command:

kubectl create secret generic isilon-creds -n isilon --from-file=config=secret.yaml -o yaml --dry-run=client | kubectl apply -f -
Install the CSI PowerScale driver