![]() As part of documenting the new module for_each capabilities we added a section noting that shared modules using the legacy pattern of declaring their own provider configurations would not be compatible with them. However, that also applies to the new module depends_on and several folks participating in the beta pointed out that the documentation wasn't discussing that at all. In order to generalize the advice, I've moved the old content we had (since v0.11) recommending against provider configurations in shared modules out into its own section, now being more explicit that it is a legacy pattern and not recommended, and then folded the content about for_each and count, now also including depends_on, into that expanded section. As is often the case, that had some knock-on effects on the content on the rest of this page, so there's some general editing and reorganization here. In particular, I moved the "Multiple Instances of a Module" section much further up the page because it's content relevant to users of shared modules, while the later content on this page is more aimed at authors of shared modules, including the new section about the legacy pattern. |
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communicator | ||
config | ||
configs | ||
contrib | ||
dag | ||
digraph | ||
docs | ||
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examples | ||
experiments | ||
flatmap | ||
helper | ||
httpclient | ||
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lang | ||
moduledeps | ||
plans | ||
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providers | ||
provisioners | ||
registry | ||
repl | ||
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state | ||
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terraform | ||
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tools | ||
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version | ||
website | ||
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CHANGELOG.md | ||
CODEOWNERS | ||
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README.md | ||
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codecov.yml | ||
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help.go | ||
main.go | ||
main_test.go | ||
panic.go | ||
plugins.go | ||
provider_source.go | ||
signal_unix.go | ||
signal_windows.go | ||
synchronized_writers.go | ||
version.go |
README.md
Terraform
- Website: https://www.terraform.io
- Forums: HashiCorp Discuss
- Documentation: https://www.terraform.io/docs/
- Tutorials: HashiCorp's Learn Platform
- Certification Exam: HashiCorp Certified: Terraform Associate
Terraform is a tool for building, changing, and versioning infrastructure safely and efficiently. Terraform can manage existing and popular service providers as well as custom in-house solutions.
The key features of Terraform are:
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Infrastructure as Code: Infrastructure is described using a high-level configuration syntax. This allows a blueprint of your datacenter to be versioned and treated as you would any other code. Additionally, infrastructure can be shared and re-used.
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Execution Plans: Terraform has a "planning" step where it generates an execution plan. The execution plan shows what Terraform will do when you call apply. This lets you avoid any surprises when Terraform manipulates infrastructure.
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Resource Graph: Terraform builds a graph of all your resources, and parallelizes the creation and modification of any non-dependent resources. Because of this, Terraform builds infrastructure as efficiently as possible, and operators get insight into dependencies in their infrastructure.
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Change Automation: Complex changesets can be applied to your infrastructure with minimal human interaction. With the previously mentioned execution plan and resource graph, you know exactly what Terraform will change and in what order, avoiding many possible human errors.
For more information, see the introduction section of the Terraform website.
Getting Started & Documentation
Documentation is available on the Terraform website:
If you're new to Terraform and want to get started creating infrastructure, please check out our Getting Started guides on HashiCorp's learning platform. There are also additional guides to continue your learning.
Show off your Terraform knowledge by passing a certification exam. Visit the certification page for information about exams and find study materials on HashiCorp's learning platform.
Developing Terraform
This repository contains only Terraform core, which includes the command line interface and the main graph engine. Providers are implemented as plugins that each have their own repository in the terraform-providers
organization on GitHub. Instructions for developing each provider are in the associated README file. For more information, see the provider development overview.
To learn more about compiling Terraform and contributing suggested changes, please refer to the contributing guide.