Building multi-Region resiliency for AWS CloudFormation custom resource deployment
Building multi-Region resiliency for AWS CloudFormation custom resource deployment by Raman Pujani on 22 JUL 2026 in AWS CloudFormation, Resilience Permalink Share AWS CloudFormation is the foundational tool of infrastructure-as-code for thousands of organizations running workloads on AWS. But as teams push the boundaries of what CloudFormation can do natively, custom resources have emerged as a powerful extension mechanism that unlocks a broad range of possibilities. Yet, when it comes to building resilient, multi-Region deployments with custom resources, customers quickly discover a gap: there is no built-in multi-Region support.
- ▪Building multi-Region resiliency for AWS CloudFormation custom resource deployment by Raman Pujani on 22 JUL 2026 in AWS CloudFormation, Resilience Permalink Share AWS CloudFormation is the foundational tool of infrastructure-as-code for th
- ▪But as teams push the boundaries of what CloudFormation can do natively, custom resources have emerged as a powerful extension mechanism that unlocks a broad range of possibilities.
- ▪Yet, when it comes to building resilient, multi-Region deployments with custom resources, customers quickly discover a gap: there is no built-in multi-Region support.
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| Original publisher | AWS Architecture Blog |
| Canonical URL | https://aws.amazon.com/blogs/architecture/building-multi-region-resiliency-for-aws-cloudformation-custom-resource-deployment/ |
| Publication time | Wed, 22 Jul 2026 14:25:09 +0000 |
| Retrieval time | 2026-07-26T10:01:46.666Z |
| Last seen | 2026-07-26T10:01:46.666Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | OgLwlPqnW5-B |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Building multi-Region resiliency for AWS CloudFormation custom resource deployment by Raman Pujani on 22 JUL 2026 in AWS CloudFormation, Resilience Permalink Share AWS CloudFormation is the foundational tool of infrastructure-as-code for thousands of organizations running workloads on AWS. But as teams push the boundaries of what CloudFormation can do natively, custom resources have emerged as a powerful extension mechanism that unlocks a broad range of possibilities. Yet, when it comes to building resilient, multi-Region deployments with custom resources, customers quickly discover a gap: there is no built-in multi-Region support. In this post, we will explore that challenge and go over a robust active-active architecture that solves it.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at AWS Architecture Blog.
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