GPAPGet in touch
OfferingsCapabilitiesWorkCase StudiesApproachContact

Case study

Platform Control Tower

Multi-cloud operations and governance structure for repeatable operator workflows.

Showcase build

Maturity note: Architecture, release controls, and evidence assets are shown in sanitized form. Full enterprise-scale claims are intentionally out of scope for this page.

Scope and limitations

Shown publicly

  • Sanitized architecture and release-workflow visuals.
  • High-level system boundaries, key components, and delivery approach.
  • Evidence references with explicit public or placeholder status.

Private/demo-only

  • Live environment telemetry and operator traces.
  • Detailed incident records and internal runbook material.
  • Client-sensitive implementation details and environment configuration.

Challenge

Operational visibility and triage flows were fragmented across tools and manual handoffs.

Governance checks and release confidence signals were inconsistent across environments.

Approach

  • Define explicit API and UI boundaries so operational data and triage workflows remain consistent.
  • Use deterministic release-gate patterns to reduce ambiguity in deployment readiness.
  • Keep evidence artifacts public-safe, with implementation detail reserved for private walkthroughs.

Architecture and key components

The architecture separates operational APIs from an aggregation UI and applies structured release checks.

Key components

  • FastAPI endpoints for operational and governance signals.
  • Aggregation UI for cross-source operational visibility.
  • Release-gate workflow with smoke checks and deployment truth checks.
  • Sanitized architecture and workflow artifacts prepared for public review.

Stack

PythonFastAPIFlaskSnowflakeGitHub ActionsAzureAWS
Sanitized architecture diagram
Sanitized architecture diagram for Platform Control Tower

Public-safe architecture view.

Sanitized pipeline overview
Sanitized pipeline overview for Platform Control Tower

Public-safe delivery workflow summary.

Sanitized release gates flow
Sanitized release-gates flow for Platform Control Tower

Public-safe gate sequence illustration.

Landing Zone Governance Flow

Multi-account governance enforces organizational controls at the platform level. Isolation, compliance, and provisioning are structural, not manual.

  1. 01

    AWS Organisations

    Root account structure with OU hierarchy that defines workload isolation boundaries before workloads exist.

  2. 02

    Management Account

    Control plane for Control Tower, Account Factory, and SCP policy attachment. No workloads run here.

  3. 03

    Organisational Units

    Security, Workloads, and Sandbox OUs with policy inheritance flowing down from each parent boundary.

  4. 04

    Governance Controls

    SCPs and guardrails enforced at OU level with preventive and detective controls.

  5. 05

    Account Factory

    Automated account provisioning with baseline networking and IAM pre-applied at creation.

  6. 06

    Shared Services Account

    Centralized logging destination, DNS, and shared infrastructure isolated from workload accounts by design.

  7. 07

    Workload Account

    Isolated compute and storage inheriting governance from parent OU without direct log archive control.

  8. 08

    Audit & Log Archive

    Immutable log destination with controlled write access under management-account governance.

Representation-level control-flow summary using sanitized architecture terms.

What this shows: How a multi-account AWS landing zone enforces governance through structural separation rather than manual controls.

Evidence and outcomes framing

3

Public visuals

3

Evidence refs listed

2

Public claims mapped

Role and delivery boundary

Done directly

  • Architecture design and system boundary definition.
  • API and aggregation-layer implementation.
  • Release workflow design and smoke-check integration.
  • Public-safe case-study evidence packaging.

Out of scope / not claimed

  • This page does not claim enterprise-wide rollout or organization-wide adoption metrics.
  • This page does not claim completed compliance certification.
  • This page does not publish internal environment details or client identifiers.

Evidence references

  • Release smoke workflow

    placeholder

    Source: controltower_api/.github/workflows/release-smoke-controltower.yml

    Public URL can be added when repository visibility is approved.

  • Scheduled smoke regression workflow

    placeholder

    Source: controltower_api/.github/workflows/scheduled-smoke-regression-controltower.yml

    Kept as a reference path until a public link is available.

  • Post-deploy smoke script

    placeholder

    Source: controltower_api/scripts/post_deploy_api_smoke.sh

    Reference included for evidence traceability.