2.4. Creating OpenShift Data Foundation cluster

Procedure

1. In the OpenShift Web Console, click Operators Installed Operators to view all the installed operators.

   Ensure that the Project selected is the name of your defined namespace.

2. Click on the OpenShift Data Foundation operator, and then click Create StorageSystem.

3. In the Backing storage page, select the following:

   1. Select Full Deployment for the Deployment type option.
   2. Select the Use an existing StorageClass option.

   3. Optional: Select Use external PostgreSQL checkbox to use an external PostgreSQL [Technology preview].

      This provides high availability solution for Multicloud Object Gateway where the PostgreSQL pod is a single point of failure.

      1. Provide the following connection details:

         • Username
         • Password
         • Server name and Port
         • Database name
      2. Select Enable TLS/SSL checkbox to enable encryption for the Postgres server.
   4. Click Next.

4. In the Capacity and nodes page, provide the necessary information:

   1. Select a value for Requested Capacity from the dropdown list. It is set to 2 TiB by default.

      注記

      Once you select the initial storage capacity, cluster expansion is performed only using the selected usable capacity (three times of raw storage).

   2. In the Select Nodes section, select at least three available nodes.

   3. In the Configure performance section, select one of the following performance profiles:

      • Lean

        Use this in a resource constrained environment with minimum resources that are lower than the recommended. This profile minimizes resource consumption by allocating fewer CPUs and less memory.

      • Balanced (default)

        Use this when recommended resources are available. This profile provides a balance between resource consumption and performance for diverse workloads.

      • Performance

        Use this in an environment with sufficient resources to get the best performance. This profile is tailored for high performance by allocating ample memory and CPUs to ensure optimal execution of demanding workloads.

        注記

        You have the option to configure the performance profile even after the deployment using the Configure performance option from the options menu of the StorageSystems tab.

        重要

        Before selecting a resource profile, make sure to check the current availability of resources within the cluster. Opting for a higher resource profile in a cluster with insufficient resources might lead to installation failures.

        For more information about resource requirements, see Resource requirement for performance profiles.

   4. Optional: Select the Taint nodes checkbox to dedicate the selected nodes for OpenShift Data Foundation.
   5. Click Next.

5. Optional: In the Security and network page, configure the following based on your requirements:

   1. To enable encryption, select Enable data encryption for block and file storage.

      1. Select either one or both the encryption levels:

         • Cluster-wide encryption

           Encrypts the entire cluster (block and file).

         • StorageClass encryption

           Creates encrypted persistent volume (block only) using encryption enabled storage class.

      2. Optional: Select the Connect to an external key management service checkbox. This is optional for cluster-wide encryption.

         1. From the Key Management Service Provider drop-down list, select one of the following providers and provide the necessary details:

            • Vault

              1. Select an Authentication Method.

                 • Using Token authentication method

                   • Enter a unique Connection Name, host Address of the Vault server ('https://<hostname or ip>'), Port number and Token.

                   • Expand Advanced Settings to enter additional settings and certificate details based on your Vault configuration:

                     • Enter the Key Value secret path in Backend Path that is dedicated and unique to OpenShift Data Foundation.
                   • Optional: Enter TLS Server Name and Vault Enterprise Namespace.
                   • Upload the respective PEM encoded certificate file to provide the CA Certificate, Client Certificate and Client Private Key.
                   • Click Save.

                 • Using Kubernetes authentication method

                   • Enter a unique Vault Connection Name, host Address of the Vault server ('https://<hostname or ip>'), Port number and Role name.

                   • Expand Advanced Settings to enter additional settings and certificate details based on your Vault configuration:

                     • Enter the Key Value secret path in Backend Path that is dedicated and unique to OpenShift Data Foundation.
                     • Optional: Enter TLS Server Name and Authentication Path if applicable.
                     • Upload the respective PEM encoded certificate file to provide the CA Certificate, Client Certificate and Client Private Key .

                   • Click Save.

                     注記

                     In case you need to enable key rotation for Vault KMS, run the following command in the OpenShift web console after the storage cluster is created:

                     $ oc patch storagecluster ocs-storagecluster -n <storage-namespace> --type=json -p '[{"op": "add", "path":"/spec/encryption/keyRotation/enable", "value": true}]'

            • Thales CipherTrust Manager (using KMIP)

              1. Enter a unique Connection Name for the Key Management service within the project.

              2. In the Address and Port sections, enter the IP of Thales CipherTrust Manager and the port where the KMIP interface is enabled. For example:

                 • Address: 123.34.3.2
                 • Port: 5696
              3. Upload the Client Certificate, CA certificate, and Client Private Key.
              4. If StorageClass encryption is enabled, enter the Unique Identifier to be used for encryption and decryption generated above.
              5. The TLS Server field is optional and used when there is no DNS entry for the KMIP endpoint. For example, kmip_all_<port>.ciphertrustmanager.local.

   2. To enable in-transit encryption, select In-transit encryption.

      1. Select a Network.
      2. Click Next.

6. In the Review and create page, review the configuration details.

   To modify any configuration settings, click Back.

7. Click Create StorageSystem.