Concepts

Concepts help you to learn about the different parts of the NooBaa and the abstractions it uses.

This concept section is divided into the following modules:

What is NooBaa?

• Overview provides an introduction to NooBaa. It also gives an overview of the features it provides.

Declarative API

• NooBaa: This is the central CRD for a NooBaa deployment. It represents the entire NooBaa system and orchestrates all its components. Administrators interact with this resource to install, configure, and manage the NooBaa platform within a Kubernetes cluster.
• BackingStore: A BackingStore represents underlying storage resources that NooBaa can use to store data. These can be cloud-based storage services (like AWS S3, Azure Blob Storage, or Google Cloud Storage) or on-premises storage systems (like a PV pool). BackingStores are used to create buckets and provide the physical storage layer.
• NamespaceStore: A NamespaceStore is a special type of BackingStore that represents an entire external bucket or a prefix within a bucket. Instead of using the external storage as a backing for NooBaa’s own data services (like deduplication and compression), a NamespaceStore provides a direct, transparent connection to the external resource. This is useful for data federation and accessing existing data in place.
• BucketClass: A BucketClass defines policies for how data is placed and managed across one or more BackingStores. It can specify data placement policies like mirroring or spreading data across different stores. When a user requests a new bucket, they can specify a BucketClass to control the behavior and characteristics of their bucket.
• ObjectBucketClaim: An ObjectBucketClaim (OBC) is a Kubernetes-native way for a user or application to request a new object storage bucket, similar to how a PersistentVolumeClaim (PVC) requests block or file storage. When an OBC is created, the NooBaa operator provisions a corresponding ObjectBucket and makes the connection details available to the application via a Secret and a ConfigMap.