ROSA Classic does not support interface endpoints for Amazon S3

Solution Verified - Updated -

Environment

  • Red Hat OpenShift Service on AWS (ROSA) Classic

Issue

  • You wish to use an interface endpoint to access Amazon S3 from a ROSA Classic cluster

Resolution

  • ROSA Classic does not support the use of interface endpoints for Amazon S3 (for core cluster components). ROSA Classic only supports the use of gateway endpoints for Amazon S3. Customers can use interface endpoints for Amazon S3 when used for application traffic only.

Root Cause

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  • ROSA Classic uses standard Amazon S3 DNS names and does not support the ability to provide endpoint-specific DNS names for Amazon S3 connections. This means that gateway endpoints for Amazon S3 are the only supported VPC endpoints for core cluster components. Per the Amazon S3 documentation, "you can use both types of endpoints in the same VPC."

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