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DirectPV is a CSI driver for Direct Attached Storage. In a simpler sense, it is a distributed persistent volume manager, and not a storage system like SAN or NAS. It is useful to discover, format, mount, schedule and monitor drives across servers. Since Kubernetes hostPath and local PVs are statically provisioned and limited in functionality, DirectPV was created to address this limitation.
Distributed data stores such as object storage, databases and message queues are designed for direct attached storage, and they handle high availability and data durability by themselves. Running them on traditional SAN or NAS based CSI drivers (Network PV) adds yet another layer of replication/erasure coding and extra network hops in the data path. This additional layer of disaggregation results in increased-complexity and poor performance.
The following information was extracted from the dockerfile and other sources.
| Canonical image ID | DirectPV container certification |
| Summary | Provides the latest release of the minimal Red Hat Universal Base Image 8. |
| Description | The Universal Base Image Minimal is a stripped down image that uses microdnf as a package manager. This base image is freely redistributable, but Red Hat only supports Red Hat technologies through subscriptions for Red Hat products. This image is maintained by Red Hat and updated regularly. |
| Provider | MinIO |
| Maintainer | Red Hat, Inc. |
| Repository name | ubi8-minimal |
| Image version | 8.8 |
| Architecture | amd64 |
Use a registry service account token to authenticate your container client. This allows you to pull images without using your personal Red Hat credentials, which is recommended for CI/CD pipelines and automated deployments.
Run the following command, then enter your registry token credentials when prompted by the terminal.
Pull the image
Use the following instructions to get images from a Red Hat container registry using your Red Hat login.
Run the following command, then enter your login credentials when prompted by the terminal.
Pull the image