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THE OPEN SOURCE INFRASTRUCTURE AS CODE TOOL.

Previously named OpenTF, OpenTofu is a fork of Terraform that is open-source,
community-driven, and managed by the Linux Foundation.

Read ManifestoTry it out


OUR GOALS


TRULY OPEN-SOURCE

under a well-known and widely-accepted license that companies can trust, that
won’t suddenly change in the future, and isn’t subject to the whims of a single
vendor.


COMMUNITY-DRIVEN

so that the community governs the project for the community, where pull requests
are regularly reviewed and accepted on their merit.


IMPARTIAL

so that valuable features and fixes are accepted based on their value to the
community, regardless of their impact on any particular vendor.


LAYERED AND MODULAR

with a programmer-friendly project structure to encourage building on top,
enabling a new vibrant ecosystem of tools and integrations.


BACKWARDS-COMPATIBLE

so that the existing code can drive value for years to come.


HOW TO CONTRIBUTE TO OPENTOFU?

The best way to show practical support for the OpenTofu initiative is to
contribute. This contribution guide explains OpenTofu contribution recommended
practices, including how to submit issues, how to get involved in the
discussion, how to work on the code, and how to contribute code changes.

Contribute


FREQUENTLY ASKED QUESTIONS

What is OpenTofu?

OpenTofu is a Terraform fork, created as an initiative of Gruntwork, Spacelift,
Harness, Env0, Scalr, and others, in response to HashiCorp’s switch from an
open-source license to the BUSL. The initiative has many supporters, all of whom
are listed here.

Why was OpenTofu created?

The BUSL and the additional use grant outlined by the HashiCorp team are
ambiguous, which makes it challenging for companies, vendors, and developers
using Terraform to decide whether their actions could be interpreted as being
outside the permitted scope of use.

Hashicorp’s FAQs give some peace of mind to end users and system integrators for
now, but the licensing terms’ implications for future usage are unclear. The
possibility that the company’s definition of “competitive” or “embedding” could
change or the license could be further modified to make it closed source prompts
uncertainty for Terraform users.

We firmly believe that Terraform should remain open-source because it is a
project many companies use, and many contributors have made Terraform what it is
today. Terraform’s success would not have been possible without the community’s
work to build many supporting projects around it.

What are the differences between OpenTofu and Terraform?

There will be no differences between Terraform (versions prior to 1.5.x) and
OpenTofu. As new versions are released, this will change.

Why should you use OpenTofu instead of Terraform?

PERSONAL USE

Initial impressions suggest you could use either OpenTofu or Terraform for
personal use, as the BUSL license has no restrictions for non-commercial use
cases. That may change as the Terraform ecosystem becomes increasingly unstable,
and a switch to another license may happen. Those familiar with Terraform will
have no issues adopting OpenTofu for personal use, so there will be no knowledge
gaps, at least at the start.

CONSULTANTS

A consultant should offer their clients the best possible solution that aligns
with their budget. OpenTofu will be on par with Terraform, and one of the
project’s central objectives is to listen to the community’s issues, so it makes
sense to recommend a project that will always stay open-source. Anyone who has
used Terraform in the last eight years has probably come across issues that took
some time to be resolved. The large community involved in developing OpenTofu
means this will no longer be the case.

COMPANIES

Companies will encounter more difficulties with the situation. Switching to a
new project carries risks, but staying with a project that changes its license
without warning is far riskier. This risk is minimized by giving OpenTofu to the
Linux Foundation, and OpenTofu’s aim of maintaining feature parity with
Terraform for future releases reduces the technical risks.

Will OpenTofu be compatible with future Terraform releases?

The community will decide what features OpenTofu will have. Some long-awaited
Terraform features will be publicly available soon.

Some companies have pledged to pay for full-time engineers to work on OpenTofu.
We have 19 such engineers involved already — and many other individuals,
companies, projects, and foundations are prepared to contribute.

Can I use OpenTofu as a drop-in replacement for Terraform? Is OpenTofu suitable
for production use?

Initially, OpenTofu will be a drop-in replacement for Terraform, as it will be
compatible with Terraform versions 1.5.x. You won’t need to make any changes to
your code to ensure compatibility. OpenTofu is suitable for production use cases
without any exception.

Show MoreGo to the FAQ page


SUPPORTERS

 * CompaniesSupporting Companies: 158158•
 * ProjectsSupporting Projects: 1111•
 * FoundationsSupporting Foundations: 11•
 * IndividualsSupporting Individuals: 781781

 * Harness
   
   Cover the cost of 5 FTEs for at least 5 years

 * Gruntwork
   
   Development; open-source community efforts

 * Spacelift
   
   Cover the cost of 5 FTEs for at least 5 years

 * env0
   
   Cover the cost of 5 FTEs for at least 5 years

 * Scalr
   
   Cover the cost of 3 FTEs for at least 5 years

Show MoreGo to the Supporters page


HOW TO SUPPORT OPENTOFU IN PLEDGING?

Pledging to the OpenTofu manifesto can be done by:

1. Going to the manifesto repository.

2. Forking the repository.

3. Adding your pledge in the index.html file.

4. Pushing the changes to your forked repo, and create a PR.

5. Starring the repository.

6. Joining our Slack community & following us on Twitter.


LATEST NEWS

October 10, 2023


OPENTOFU’S NEW OFFICE HOURS

OpenTofu is introducing new office hours, open to everyone.

Read MoreRead more about: OpenTofu’s New Office Hours
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