distribution / distribution

Storage - distribution/distribution

In this explanation, we will cover the storage options and configurations for the OCI Distribution project (https://github.com/distribution/distribution/) using the provided resources.

Storage Technologies and Dependencies

The OCI Distribution project relies on various storage technologies and dependencies, such as Google Cloud Storage, Azure SDK for Go, and containerd. The project also utilizes the Go Programming Language, HTTP, and Docker for its implementation.

Storage Drivers and Usage

The storage drivers used in the OCI Distribution project include the Container Storage Interface (CSI) and Local Persistent Volumes, which were introduced in Kubernetes 1.10. These drivers enable efficient storage management and integration with cloud-native environments.

Container Storage Interface (CSI)

CSI is a standard for container storage that allows for storage plugins to be integrated with container orchestrators like Kubernetes. It simplifies the management of storage resources and enables the use of various storage backends.

Local Persistent Volumes

Local Persistent Volumes are a feature in Kubernetes that allows for the use of local storage devices for persistent volumes. This can improve performance and reduce costs compared to networked storage solutions.

Configuring and Managing Storage Backends

The OCI Distribution project supports various storage backends, including Google Cloud Storage and Azure SDK for Go. Configuring and managing these storage backends involves setting up access credentials, creating storage classes, and defining persistent volume claims.

Google Cloud Storage

To configure Google Cloud Storage for the OCI Distribution project, follow these steps:

  1. Create a Google Cloud Storage bucket.
  2. Set up a service account and download the JSON key file.
  3. Set the GOOGLE_APPLICATION_CREDENTIALS environment variable to the path of the JSON key file.
  4. Create a Kubernetes secret with the JSON key file content.
  5. Define a storage class that references the Google Cloud Storage bucket.
  6. Create a persistent volume claim that uses the storage class.

Azure SDK for Go

To configure Azure SDK for Go for the OCI Distribution project, follow these steps:

  1. Create an Azure storage account.
  2. Set up a service principal and assign it the necessary roles.
  3. Set the AZURE_TENANT_ID, AZURE_CLIENT_ID, and AZURE_CLIENT_SECRET environment variables.
  4. Create a Kubernetes secret with the tenant ID, client ID, and client secret.
  5. Define a storage class that references the Azure storage account.
  6. Create a persistent volume claim that uses the storage class.

Benchmarking Cloud Native Storage

Benchmarking cloud-native storage is essential to ensure optimal performance and efficiency. The talk “Benchmarking Cloud Native Storage” by Josh Berkus, Red Hat, provides insights into benchmarking various forms of Kubernetes storage, including host storage, network storage, cloud storage, and cloud-native storage systems like Rook.

Additional Resources

For more information on storage in cloud-native environments, refer to the following resources: