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When integrating StreamNative Cloud with external catalog providers in production environments, you may need to configure private network connections to ensure that traffic between StreamNative Cloud and your catalog and storage services does not traverse the public internet. Private networking for lakehouse catalog integration involves two components:
  • Storage connectivity — Private network connections between StreamNative Cloud and your object storage (S3, GCS, or Azure Blob Storage).
  • Catalog connectivity — Private network connections between StreamNative Cloud and your catalog provider.
The following diagram shows the network path between StreamNative Cloud and the catalog and storage services over private connectivity.

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Prerequisites

  • A StreamNative BYOC cluster deployed on AWS, GCP, or Azure.
  • A registered catalog in StreamNative Cloud. See Register Catalog.
  • An active integration with a supported catalog provider. See the External Tables Integrations for setup guides.

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Storage private connectivity

Private network connections between StreamNative Cloud and object storage are handled differently depending on the cloud provider.
On AWS, StreamNative configures private network connections to Amazon S3 endpoints by default in all StreamNative environments. The S3 VPC endpoint is configured per VPC.No action is required on your side. All traffic between your StreamNative BYOC cluster and S3 stays within the AWS private network automatically.

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Catalog private connectivity

To establish private network connections between StreamNative Cloud and your catalog provider, follow the guide for your catalog provider:

Snowflake Open Catalog

Configure private connectivity to Snowflake Open Catalog using AWS PrivateLink, GCP Private Service Connect, or Azure Private Link.

Snowflake Horizon Catalog

Configure private connectivity to Snowflake Horizon Catalog using AWS PrivateLink, GCP Private Service Connect, or Azure Private Link.

Databricks Delta Lake

Configure private connectivity to Databricks Unity Catalog for Delta Lake using AWS PrivateLink, GCP Private Service Connect, or Azure Private Link.

Databricks Iceberg

Configure private connectivity to Databricks Unity Catalog for Iceberg using AWS PrivateLink, GCP Private Service Connect, or Azure Private Link.

Amazon S3 Tables

Private connectivity for Amazon S3 Tables on AWS. Configured by default — no action required.

Google BigLake

Private connectivity for Google BigLake on GCP. Configured by default — no action required.