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Chapter 1. Preparing to deploy OpenShift Data Foundation
When you deploy OpenShift Data Foundation on OpenShift Container Platform using local storage devices, you can create internal cluster resources. This approach internally provisions base services and all applications can access additional storage classes.
Before you begin the deployment of Red Hat OpenShift Data Foundation using local storage, ensure that your resource requirements are met. See requirements for installing OpenShift Data Foundation using local storage devices.
On the external key management system (KMS),
- Ensure that you have a valid Red Hat OpenShift Data Foundation Advanced subscription. To know how subscriptions for OpenShift Data Foundation work, see knowledgebase article on OpenShift Data Foundation subscriptions.
- When the Token authentication method is selected for encryption then refer to Enabling cluster-wide encryption with the Token authentication using KMS.
- Ensure that you are using signed certificates on your Vault servers.
After you have addressed the above, follow these steps in the order given:
1.1. Requirements for installing OpenShift Data Foundation using local storage devices Copier lienLien copié sur presse-papiers!
Node requirements
The cluster must consist of at least three OpenShift Container Platform worker nodes with locally attached-storage devices on each of them.
- Each of the three selected nodes must have at least one raw block device available to be used by OpenShift Data Foundation.
Make sure that the devices have a unique by-id device name for each available raw block device.
- The devices you use must be empty; the disks must not include physical volumes (PVs), volume groups (VGs), or logical volumes (LVs) remaining on the disk.
For more information, see the Resource requirements section in the Planning guide.
1.2. Enabling cluster-wide encryption with KMS using the Token authentication method Copier lienLien copié sur presse-papiers!
To enable the key value backend path and policy in Vault for the Token authentication, follow the procedure:
Prerequisites
- Administrator access to Vault.
- A valid Red Hat OpenShift Data Foundation Advanced subscription. For more information, see the knowledgebase article on OpenShift Data Foundation subscriptions.
-
Carefully, select a unique path name as the backend
paththat follows the naming convention since it cannot be changed later.
Procedure
Enable the Key/Value (KV) backend path in Vault.
For Vault KV secret engine API, version 1:
$ vault secrets enable -path=odf kvFor Vault KV secret engine API, version 2:
$ vault secrets enable -path=odf kv-v2Create a policy to restrict users to perform a write or delete operation on the secret using the following commands.
echo ' path "odf/*" { capabilities = ["create", "read", "update", "delete", "list"] } path "sys/mounts" { capabilities = ["read"] }'| vault policy write odf -Create a token matching the above policy.
$ vault token create -policy=odf -format json