Why Terramate

Learn what makes managing Infrastructure as Code hard today, how existing approaches fall short, and why teams choose Terramate to manage Terraform and OpenTofu at scale.

The problem with IaC today

Managing cloud infrastructure with Terraform and OpenTofu at scale is hard. Teams hit the same walls:

• Poor environment management: Terraform and OpenTofu offer only basic primitives for managing environments -- workspaces and directory duplication -- with no standard way to promote changes from dev to staging to production. Teams end up with duplicated code, inconsistent configurations, and error-prone manual promotion workflows.
• Fragile automation: Pipelines are glued together from dozens of tools -- CI scripts, wrapper scripts, linters, policy engines, and notification hooks -- creating a platform that is brittle and expensive to maintain.
• No unified visibility: Deployments, drift, and infrastructure changes are scattered across repositories, CI logs, and cloud consoles, with no single place to see what is happening.
• Broad access requirements: Many platforms require direct access to your cloud accounts, state files, and source code in order to operate, expanding your attack surface.
• Slow feedback loops: Without change detection, every pull request triggers a full plan across the entire repository, making reviews slow and risky.
• IaC expertise as a bottleneck: Terraform and OpenTofu require deep expertise to use safely, locking out application developers who need infrastructure but cannot write or review HCL. Without self-service, every request flows through a small platform team, creating a bottleneck that slows down the entire organization.

Existing approaches

Two approaches dominate the market today. Both come with significant trade-offs.

The DIY approach

Teams build a platform around open-source IaC tools by combining CI/CD pipelines, custom scripts, and a patchwork of third-party integrations. This approach:

• Requires dedicated platform engineering teams to build and maintain.
• Does not scale -- adding repositories, environments, or teams multiplies complexity.
• Offers no built-in collaboration, observability, or governance.
• Produces fragile automation that breaks when any component changes.

Purpose-built CI/CD platforms (TACOS)

Terraform Automation and Collaboration Software (TACOS) are purpose-built CI/CD platforms for IaC. While they provide automation and collaboration out of the box, they:

• Only mitigate parts of the problem -- they automate plan/apply but do not help you organize, structure, or maintain your IaC codebase.
• Come with a significant price tag and long-term vendor lock-in.
• Often require refactoring existing IaC configurations into platform-specific patterns.
• Require broad access to your cloud accounts, state files, and often your source code.
• Replace your existing CI/CD rather than integrating with it, forcing you to adopt new secrets management and permissions models.
• Are time-consuming to onboard and manage.

The Terramate approach

Terramate takes a fundamentally different approach: integrate with what you already have, shift orchestration to the client side, and use a push-only data model that keeps sensitive data in your environment.

• Full IaC lifecycle: Terramate covers the entire lifecycle -- from structuring your codebase and keeping it DRY, to deploying across environments, to continuously maintaining and updating infrastructure over time.
• Works with your existing CI/CD: Run Terramate in GitHub Actions, GitLab CI, Bitbucket Pipelines, Azure DevOps, or any other CI/CD system you already use.
• No cloud account access required: Terramate never needs credentials to your AWS, GCP, or Azure accounts.
• No state file access: Execution and state stay in your environment. Terramate Cloud does not read or store your Terraform state.
• No source code access: The push-only model means Cloud receives metadata and sanitized resources, not your code.
• Client-side sanitization: When extracting resources from plan files, Terramate CLI redacts all sensitive values -- secrets, certificates, and credentials -- on the client side before pushing any data to Terramate Cloud.
• Open-source CLI: The orchestration layer is fully open source. No vendor lock-in on the tool that runs your infrastructure.
• Incremental adoption: Add Terramate to any existing Terraform, OpenTofu, or Terragrunt project in minutes without refactoring your code or changing your workflow.
• Keep your secrets management and permissions model: No new credential stores, no new permission boundaries. Your existing security posture stays intact.

How Terramate compares

Dimension	DIY	Purpose-built CI/CD	Terramate
Time to onboard	Weeks to months	Days to weeks	Minutes
Migration effort	N/A	Often significant	Incremental
Configuration effort	N/A	UI, API, or Terraform provider	Inline configuration -- efficient and lean
Environment management	Manual duplication	Limited	Built-in with promotion chains
Secrets management	You manage	Platform-specific	You keep yours
Delivery speed	Slow (full repo runs)	Moderate	Fast (change detection + parallel)
Self-service infrastructure	Build it yourself	Limited	Built-in
Visibility and collaboration	Build it yourself	Partially included	Included
AI ready	N/A	Very limited	Agents, MCP, Skills
Required access	You manage cloud, state, and code	Cloud accounts, state, and often source code	None -- push-only, no access to cloud, state, or code
Execution and CI/CD	Your runners	Platform-managed runners, replaces your CI/CD	Your runners, works with any CI/CD
Pricing model	Infrastructure cost only	Per resource, run, or concurrency	Open-source CLI; predictable Cloud pricing
Native IaC (no wrappers)	Yes	Platform-specific patterns required	Yes -- native Terraform/OpenTofu
Code structure and maintenance	Manual	Not addressed	Built-in (stacks, codegen, bundles)
Deployment options	N/A	SaaS, limited self-host	SaaS and BYOC
Open source and licensing	Varies	BSL or proprietary; TACOS platforms competing with HashiCorp cannot run Terraform >= 1.6 under BSL terms	CLI is fully open source; runs any Terraform or OpenTofu version since your CI/CD executes it, not Terramate
Customization	Unlimited but fragile	Limited by platform	Fully configurable, zero lock-in

Next steps

• How Terramate Works
• Install Terramate CLI
• Onboard an existing project: Terraform, OpenTofu, Terragrunt
• Book a demo
• Join the Discord community