8f77bd344e
The functions that interact with the filesystem are, by design, restricted to reading files that are distributed as a static part of the configuration, and cannot be used to interact with files that are generated dynamically by resources in the configuration. However, new users have often yet developed a correct mental model of how Terraform execution works and are confused by the terse error messages these functions return. As an interim step to help some of those users, this just adds some more commentary to the error message which gives a vague, generic directive to look to attributes of the resource that is generating the file, which should (if it's designed well) export attributes that allow the resulting file to be used effectively with common patterns, such as checksums of the content of the generated file. The error message here is not particularly attractive due to the limitations of the context where it's being returned from, but I'm accepting that here in the interest of keeping this change simple, so we can give a hint about a case that seems to frequently generate new-user questions. We may iterate further on the presentation of this message later. |
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| .circleci | ||
| .github | ||
| addrs | ||
| backend | ||
| builtin | ||
| command | ||
| communicator | ||
| config | ||
| configs | ||
| contrib | ||
| dag | ||
| digraph | ||
| docs | ||
| e2e | ||
| examples | ||
| experiments | ||
| flatmap | ||
| helper | ||
| httpclient | ||
| instances | ||
| internal | ||
| lang | ||
| moduledeps | ||
| plans | ||
| plugin | ||
| providers | ||
| provisioners | ||
| registry | ||
| repl | ||
| scripts | ||
| state | ||
| states | ||
| terraform | ||
| tfdiags | ||
| tools | ||
| vendor | ||
| version | ||
| website | ||
| .gitignore | ||
| .go-version | ||
| .hashibot.hcl | ||
| .tfdev | ||
| CHANGELOG.md | ||
| CODEOWNERS | ||
| Dockerfile | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| checkpoint.go | ||
| codecov.yml | ||
| commands.go | ||
| go.mod | ||
| go.sum | ||
| 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.