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Setting Up an Out-of-tree VMware vSphere Cloud Provider

Kubernetes is moving away from maintaining cloud providers in-tree. VMware vSphere has an out-of-tree cloud provider that can be used by installing the vSphere cloud provider and cloud storage plugins.

This page covers how to install the Cloud Provider Interface (CPI) and Cloud Storage Interface (CSI) plugins after setting up a cluster.

Prerequisites​

The vSphere versions supported:

  • 6.7u3
  • 7.0u1 or higher.

The Kubernetes version must be 1.19 or higher.

Using the vSphere out-of-tree cloud provider requires Linux nodes and is not supported on Windows.

Installation​

The Cloud Provider Interface (CPI) should be installed first before installing the Cloud Storage Interface (CSI).

1. Create a VMware vSphere cluster​

  1. Click ☰ > Cluster Management.
  2. On the Clusters page, click Create.
  3. Click VMware vSphere or Custom.
  4. On the Basics tab in the Cluster Configuration section, set the Cloud Provider to vSphere.
  5. In the Add-On Config tab, the vSphere Cloud Provider (CPI) and Storage Provider (CSI) options.
  6. Finish creating your cluster.

2. Install the CPI plugin​

  1. Click ☰ > Cluster Management.

  2. Go to the cluster where the vSphere CPI plugin will be installed and click Explore.

  3. Click Apps > Charts.

  4. Click vSphere CPI.

  5. Fill out the required vCenter details.

  6. vSphere CPI initializes all nodes with ProviderID which is needed by the vSphere CSI driver. Check if all nodes are initialized with the ProviderID before installing CSI driver with the following command:

    kubectl describe nodes | grep "ProviderID"

3. Installing the CSI plugin​

  1. Click ☰ > Cluster Management.
  2. Go to the cluster where the vSphere CSI plugin will be installed and click Explore.
  3. Click Apps > Charts.
  4. Click vSphere CSI.
  5. Click Install.
  6. Fill out the required vCenter details. On the Features tab, set Enable CSI Migration to false.
  7. On the Storage tab, fill out the details for the StorageClass. This chart creates a StorageClass with the csi.vsphere.vmware.com as the provisioner.
  8. Click Install.

Using the CSI driver for provisioning volumes​

The CSI chart by default creates a storageClass.

If that option was not selected while launching the chart, create a storageClass with the csi.vsphere.vmware.com as the provisioner.

All volumes provisioned using this StorageClass will get provisioned by the CSI driver.