Reverse-Engineered Stacks

Import existing AWS, GCP, or Azure environments into visual blueprints and clean Terraform modules.

Import Stack

What it is

Turn your "ClickOps" chaos into clean, managed Infrastructure as Code. We scan your cloud account, visualize the connections and write the Terraform code for you.

When to use it

  • Brownfield projects with no existing IaC (Infrastructure as Code).
  • preparing for a Disaster Recovery audit by documenting undocumented stacks.
  • Migrating off legacy providers or consolidating accounts.

Use Cases

01

The Black Box Migration

The Problem

Inherited a 5-year-old AWS account with zero documentation. The original architect left and the team was afraid to touch anything.

The Solution

Ran "Import Stack". DeployN visualized the entire network topology, mapped the load balancers to instances and generated Terraform.

Result: Successfully brought the legacy stack under version control in 2 hours, enabling safe updates.

02

Environment Cloning

The Problem

Needed a "Staging" environment that exactly matched "Production", but Prod was built manually over years.

The Solution

Reverse-engineered Prod, codified it, parameterized the names and re-deployed it as a new "Staging" stack.

Result: Achieved perfect parity between environments. QA could finally trust testing results.

03

Drift Baseline Creation

The Problem

Company wanted to start using IaC but had thousands of existing resources.

The Solution

Imported everything into the DeployN state backend without downtime.

Result: Established a "Day 0" baseline to facilitate all future changes via Terraform.

How It Works

Step 1:Connect Cloud

Provide a Read-Only role ARN for your cloud account.

Step 2:Scan & Map

DeployN traverses the API to map resources (VPCs, Subnets, EC2s, RDS) and their relationships.

Step 3:Visual Graph

We build an interactive diagram. You can group nodes and organize the layout.

Step 4:Codify

Click "Export Terraform". We generate modular, valid HCL code representing your stack.

Measurable Outcomes

Weeks

Time Saved

Manual codification of a large stack takes weeks. We do it in minutes.

95%

Coverage

We support most major resource types for AWS, Azure and GCP.

Zero

Risk

The import process is read-only and does not affect running workloads.

Technical Implementation

Read Only Access

We only require the `SecurityAudit` and `ViewOnlyAccess` policies to perform the import scan.

Scan Command

BASH
deployn import --region us-east-1 --filter "tag:Project=LegacyApp"
# Scanning AWS Account 123456789...
# Found 42 resources
# Generating Terraform configuration...
# Done! Output saved to ./imported_stack/

ARCHITECTURE FLOW

This diagram represents the logical flow of data within the Reverse-Engineered Stacks module, demonstrating how it integrates with your existing stack.

Common Questions

Does this affect running resources?

No. The scan is strictly read-only and uses standard cloud APIs.

Can I filter what to import?

Yes. You can import by Tag, VPC ID, Region, or Resource Type.

Does it generaet modules?

Yes. It attempts to group related resources (like a VPC and its subnets) into logical modules.

Can I import into an existing state file?

Yes. We support merging imported resources into an existing remote state backend.

What about non-Terraform resources?

We map everything we can to Terraform resources. Unsupported resources are flagged in the report.

Ready to implement Reverse-Engineered Stacks?

Join the waitlist to get early access and start building your visual infrastructure today.

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