Configuring the Ceph-CSI driver for Ceph Block Devices

As a Kubernetes Administrator, you can use this information to configure the Ceph-CSI driver for use with IBM Storage Ceph Block Devices (RBD) on your cluster.

Before you begin

Be sure that the Ceph-CSI driver and relevant YAML files, provided by IBM Sales are installed.
Ensure connectivity between Kubernetes and the Ceph cluster exists by using ping or telnet.

Procedure

Update the values.yaml file with the relevant values for Ceph-CSI driver configuration.

Important: Keep only the required changes.

Note: For a full list of configurable Ceph-CSI Helm parameters and their default values, see Configuring Helm ceph-csi-rbd charts.

Update all nodeplugin.image.* parameters for the Ceph-CSI driver.

Use the parameter values listed in Table 1 to configure the Ceph-CSI driver.

Table 1. Ceph-CSI driver nodeplugin.image.* parameters
Parameter	Value
nodeplugin.plugin.image.repository	`cp.icr.io/cp/ibm-ceph/cephcsi`
nodeplugin.plugin.image.tag
nodeplugin.plugin.image.pullPolicy	`Always`

For example, to update with Helm:

helm install --set nodeplugin.plugin.image.repository=cp.icr.io/cp/ibm-ceph/cephcsi --set nodeplugin.plugin.image.tag= --set nodeplugin.plugin.image.pullPolicy=IfNotPresent

Update all provisioner.provisioner.image.* parameters for the relevant kubernetes-csi container-images from the Kubernetes vendor.
- provisioner.provisioner.image.repository
- provisioner.provisioner.image.tag
- provisioner.provisioner.image.pullPolicy
- provisioner.provisioner.image.extraArgs
For example, to update with Helm:
```
helm install --set provisioner.provisioner.image.repository=registry.k8s.io/sig-storage/csi-provisioner --set provisioner.provisioner.image.tag=v5.1.0 --set provisioner.provisioner.image.pullPolicy=IfNotPresent --set provisioner.provisioner.image.extraArgs=[]
```

Update the required clusterID and monitor information, provided by the Ceph administrator.

csiConfig:
 - clusterID: "79179d9d-98d8-4976-ab2e-58635caa7235"
   monitors:
     - "10.85.8.118:6789"
     - "10.85.8.123:6789"
     - "10.85.8.124:6789"
provisioner:
 name: provisioner
 replicaCount: 2

Optional: Update any other needed parameters.
Verify that all Ceph monitors are reachable from the cluster, by pinging the monitors.
```
ping MONITOR_IP
```
For example,
```
ping 10.85.8.118
```