AWS Outposts bring a new Shared Responsibility Model

Why would you want Outposts?

Outposts are ideal for use cases that require a hybrid-cloud solution. This is usually driven by regulatory requirements where some data needs to be kept on-prem and other data — such as the public website — can be hosted in the public cloud.
Outposts bring some significant key benefits for enterprise customers:

  • Native cloud services across AWS and on-prem — you can use the same APIs across your on-prem and public cloud environment and you don’t need to build the entire IaaS stack.
  • Simpler Operating Model — Outposts are fully managed. Therefore you can use the same tools and processes giving you a consistent environment management approach for both worlds.

What do you get?

Here is a subset of features that have been announced for the GA. Further features will gradually follow once the service is released.

  • Compute and Storage — a selection of general purpose, compute optimised, memory optimised, and graphics optimised EC2 instance families
  • Networking — VPC extension and local networking — seamless extension of a regional VPC to an on-prem location
  • Native cloud services — ALB, ECS and EKS, Amazon EMR for big data, and RDS for databases can all be launched on-prem. Private Link gateway endpoints can be used to connect privately to regional AWS services such as Amazon S3 and DynamoDB. How good is that?
  • AWS tooling — AWS CloudFormation, Amazon CloudWatch, AWS CloudTrail and others can be used to run and manage workloads in the same way as your public cloud resources.

How can you get it?

The on-boarding process is going to look like this:

How does this change the Shared Responsibility Model?

To answer this question, let’s have a quick look at some existing Shared Responsibility Models. If you opt-in for an IaaS model, then there is a lot you need to manage yourself — including network protection (e.g. security groups, Network ACLs) and much more, as illustrated in the diagram below:

Key takeaways

Outpost brings a new Shared Responsibility Model which moves some infrastructure responsibilities towards AWS. It therefore simplifies the customer’s operating model. By providing native cloud API for on-prem it also streamlines your provisioning and management processes. Contino can help you with a Return on Investment model if you are considering this game changing service.



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Gerald Bachlmayr

Gerald Bachlmayr

Principal Cloud Architect at Cuscal Payments