Tools: How I Documented My Terraform DevSecOps Project

Documenting a Terraform DevSecOps project effectively combines automated documentation, clear architecture visualization, and reproducible setup instructions—mirroring real-world DevOps practices where clarity, consistency, and collaboration are critical. Using tools like terraform-docs, you can automatically generate and maintain up-to-date READMEs, while integrating diagrams and step-by-step guides ensures onboarding and audits are seamless. ****Step-by-step instructions Install terraform-docs using a package manager (e.g., choco install terraform-docs on Windows, brew install terraform-docs on macOS, or download from terraform-docs GitHub) Organize your Terraform project with clear module structure (e.g., main.tf, variables.tf, outputs.tf) Write descriptive comments for variables, outputs, and resources using the description field Create a .terraform-docs.yml configuration file in the project root to define the README structure: Run terraform-docs markdown table --output-file README.md . to auto-generate the documentation block inside README.md. Manually add sections above or below the auto-generated content: name: Generate Terraform Docs
on: pull_request: branches: [ main ]
jobs: docs: runs-on: ubuntu-latest steps: - uses: actions/checkout@v3 - name: Generate README.md with terraform-docs uses: terraform-docs/[email protected] with: output-file: README.md output-method: inject git-push: "true" Templates let you quickly answer FAQs or store snippets for re-use. Are you sure you want to ? It will become hidden in your post, but will still be visible via the comment's permalink. as well , this person and/or CODE_BLOCK:
Terraform CLI
terraform-docs (installed locally or in CI)
Markdown editor
Diagramming tool (e.g., Lucidchart, Draw.io, or Excalidraw)
GitHub or similar repo platform CODE_BLOCK:
Terraform CLI
terraform-docs (installed locally or in CI)
Markdown editor
Diagramming tool (e.g., Lucidchart, Draw.io, or Excalidraw)
GitHub or similar repo platform CODE_BLOCK:
Terraform CLI
terraform-docs (installed locally or in CI)
Markdown editor
Diagramming tool (e.g., Lucidchart, Draw.io, or Excalidraw)
GitHub or similar repo platform COMMAND_BLOCK:
version: "1"
sections: show: - requirements - providers - inputs - outputs - resources
content: | # {{ .Escape .Name }} {{ if .Has .Content }}{{ .Content }}{{ end }} {{ if .Has .Requirements }}## Requirements{{ .Requirements }}{{ end }} {{ if .Has .Providers }}## Providers{{ .Providers }}{{ end }} {{ if .Has .Modules }}## Modules{{ .Modules }}{{ end }} {{ if .Has .Inputs }}## Inputs{{ .Inputs }}{{ end }} {{ if .Has .Outputs }}## Outputs{{ .Outputs }}{{ end }} {{ if .Has .Resources }}## Resources{{ .Resources }}{{ end }} COMMAND_BLOCK:
version: "1"
sections: show: - requirements - providers - inputs - outputs - resources
content: | # {{ .Escape .Name }} {{ if .Has .Content }}{{ .Content }}{{ end }} {{ if .Has .Requirements }}## Requirements{{ .Requirements }}{{ end }} {{ if .Has .Providers }}## Providers{{ .Providers }}{{ end }} {{ if .Has .Modules }}## Modules{{ .Modules }}{{ end }} {{ if .Has .Inputs }}## Inputs{{ .Inputs }}{{ end }} {{ if .Has .Outputs }}## Outputs{{ .Outputs }}{{ end }} {{ if .Has .Resources }}## Resources{{ .Resources }}{{ end }} COMMAND_BLOCK:
version: "1"
sections: show: - requirements - providers - inputs - outputs - resources
content: | # {{ .Escape .Name }} {{ if .Has .Content }}{{ .Content }}{{ end }} {{ if .Has .Requirements }}## Requirements{{ .Requirements }}{{ end }} {{ if .Has .Providers }}## Providers{{ .Providers }}{{ end }} {{ if .Has .Modules }}## Modules{{ .Modules }}{{ end }} {{ if .Has .Inputs }}## Inputs{{ .Inputs }}{{ end }} {{ if .Has .Outputs }}## Outputs{{ .Outputs }}{{ end }} {{ if .Has .Resources }}## Resources{{ .Resources }}{{ end }} CODE_BLOCK:
- Project Title and Description
- Architecture Flow (embed or link a diagram showing CI/CD pipeline, IaC flow, security gates)
- Setup Instructions: Clone the repo Run terraform init Run terraform plan to review changes Run terraform apply to deploy - DevSecOps Integration Notes (e.g., Checkov for static analysis, GitHub Actions for CI/CD) - Commit both .terraform-docs.yml and updated README.md to version control
(Optional) Set up a GitHub Action to auto-update the README on pull requests: CODE_BLOCK:
- Project Title and Description
- Architecture Flow (embed or link a diagram showing CI/CD pipeline, IaC flow, security gates)
- Setup Instructions: Clone the repo Run terraform init Run terraform plan to review changes Run terraform apply to deploy - DevSecOps Integration Notes (e.g., Checkov for static analysis, GitHub Actions for CI/CD) - Commit both .terraform-docs.yml and updated README.md to version control
(Optional) Set up a GitHub Action to auto-update the README on pull requests: CODE_BLOCK:
- Project Title and Description
- Architecture Flow (embed or link a diagram showing CI/CD pipeline, IaC flow, security gates)
- Setup Instructions: Clone the repo Run terraform init Run terraform plan to review changes Run terraform apply to deploy - DevSecOps Integration Notes (e.g., Checkov for static analysis, GitHub Actions for CI/CD) - Commit both .terraform-docs.yml and updated README.md to version control
(Optional) Set up a GitHub Action to auto-update the README on pull requests: CODE_BLOCK:
- Install terraform-docs using a package manager (e.g., choco install terraform-docs on Windows, brew install terraform-docs on macOS, or download from terraform-docs GitHub)
- Organize your Terraform project with clear module structure (e.g., main.tf, variables.tf, outputs.tf)
- Write descriptive comments for variables, outputs, and resources using the description field
- Create a .terraform-docs.yml configuration file in the project root to define the README structure: - Run terraform-docs markdown table --output-file README.md . to auto-generate the documentation block inside README.md.
- Manually add sections above or below the auto-generated content: