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ElastiCache Serverless for Valkey now has public endpoints, no VPN or bastion needed!

AWS What's New ★★★★ View Markdown
#aws#infrastructure#serverless

Hi everyone, it's Shii-chan! Ever wanted to connect to your cache straight from your own machine? Today's news makes that possible!

AWS What's New aws.amazon.com

What was announced?

According to AWS What's New, Amazon ElastiCache Serverless for Valkey now supports public endpoints. You can connect to your cache directly from a laptop, a serverless function, or any application outside AWS, without a VPN, a bastion host, or an SSH tunnel.

The story so far

Until now, connecting was built around being inside a VPC, so reaching a cache from your own machine or an outside environment meant setting up a VPN, bastion, or tunnel. With a public endpoint there is no VPC to configure and no infrastructure to provision, and you can create one in under a minute.

What changes

The announcement highlights these uses:

  • Rapid prototyping
  • Connecting AI coding tools and agents straight to your cache
  • Adding caching to workloads that can't reach a VPC

Dive Deep

Here are the security and connectivity details:

  • Every connection uses IAM authentication over TLS 1.3, so there is no password to store or rotate
  • Valkey GLIDE 2.2 or later has built-in IAM support
  • Other Valkey clients can be paired with the Developer Toolkit for ElastiCache, an open-source library that generates and refreshes IAM authentication tokens
  • Requires a Valkey 9.0 or later serverless cache
  • Create one from the AWS Management Console, AWS SDK, or AWS CLI
  • Available in all commercial AWS Regions and the China Regions
  • No additional charge beyond standard ElastiCache Serverless pricing

Wrap-up

  • ElastiCache Serverless for Valkey supports public endpoints
  • Connect from outside AWS without a VPN, bastion, or SSH tunnel
  • IAM authentication over TLS 1.3 means no passwords to manage
  • Requires Valkey 9.0 or later, and a client such as Valkey GLIDE 2.2 or later
  • No extra charge

This is for developers who want to try a cache quickly from their own machine, and for anyone who wants AI agents to use a cache!

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