85 lines
2.6 KiB
Markdown
85 lines
2.6 KiB
Markdown
# Abstract Base Cloud
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The ABC Pattern is a universal architectural model for structuring cloud
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infrastructure in a way that is predictable, explicit, and safe for automated
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reasoning. It defines a small set of composable building blocks and a strict set
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of rules governing how those blocks relate, communicate, and evolve. The result
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is an architecture that is easy to understand, easy to validate, and easy to
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generate or transform using both human and machine agents.
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ABC is intentionally tool‑agnostic and cloud‑agnostic. It does not prescribe
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specific services, resource types, or implementation languages. Instead, it
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defines a semantic architecture model that can be mapped onto any
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infrastructure-as-code system, including imperative tools (such as CDK) and
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declarative tools (such as Terraform).
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At its core, ABC is built on three foundational ideas:
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**1. A strict hierarchical structure**
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Every ABC architecture is composed of three construct types:
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* ApplicationStack — the root of the system
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* Logical Units — functional domains
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* Resource Groups — cohesive clusters of cloud resources
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This hierarchy forms a strict tree with no lateral references, ensuring clarity
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and isolation.
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**2. Explicit contracts and deterministic data flow**
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Every construct defines:
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* an Input Contract (what it needs)
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* an Output Contract (what it produces)
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Data flows only in two directions:
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* Capturing Down — parents pass data to children
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* Bubbling Up — children return data to parents
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This eliminates hidden dependencies and makes the architecture fully analyzable.
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**3. A stable foundation for automation**
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Because ABC is explicit, typed, and deterministic, it is uniquely suited for:
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* automated code generation
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* architecture validation
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* refactoring and transformation
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* multi‑cloud portability
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* agent‑driven reasoning
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ABC is designed to be the intermediate representation (IR) for infrastructure,
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something like the “AST of cloud architecture”.
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## Purpose and Philosophy
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The ABC Pattern exists to solve a fundamental problem in cloud architecture:
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infrastructure is too implicit.
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* Dependencies are hidden.
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* Data flow is unclear.
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* Modules are entangled.
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* Refactoring is risky.
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* Automation is fragile.
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ABC replaces this with a model that is:
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* explicit,
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* typed,
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* hierarchical,
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* deterministic,
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* verifiable, and
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* portable
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It is designed to be understood by humans, validated by tools, and generated by
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agents.
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## Content
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* [Concepts](concepts.md)
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* [Abstract Model](model.md)
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* [Rules](rules/index.md)
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* [Schema](schema.md)
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* [Canonical Example](example.md)
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* [Profiles](profiles/index.md)
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