terraform

command module
Version: v1.0.9 Latest Latest
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Published: Oct 13, 2021 License: MPL-2.0 Imports: 39 Imported by: 1

README

Terraform

Terraform

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:

  • 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.

  • 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.

  • 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.

  • 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, and Terraform can automatically download providers that are published on the Terraform Registry. HashiCorp develops some providers, and others are developed by other organizations. For more information, see Extending Terraform.

To learn more about compiling Terraform and contributing suggested changes, please refer to the contributing guide.

To learn more about how we handle bug reports, please read the bug triage guide.

License

Mozilla Public License v2.0

Documentation

The Go Gopher

There is no documentation for this package.

Directories

Path Synopsis
tools
The version package provides a location to set the release versions for all packages to consume, without creating import cycles.
The version package provides a location to set the release versions for all packages to consume, without creating import cycles.
internal
addrs
Package addrs contains types that represent "addresses", which are references to specific objects within a Terraform configuration or state.
Package addrs contains types that represent "addresses", which are references to specific objects within a Terraform configuration or state.
backend
Package backend provides interfaces that the CLI uses to interact with Terraform.
Package backend provides interfaces that the CLI uses to interact with Terraform.
backend/init
Package init contains the list of backends that can be initialized and basic helper functions for initializing those backends.
Package init contains the list of backends that can be initialized and basic helper functions for initializing those backends.
backend/remote-state/gcs
Package gcs implements remote storage of state on Google Cloud Storage (GCS).
Package gcs implements remote storage of state on Google Cloud Storage (GCS).
command/cliconfig
Package cliconfig has the types representing and the logic to load CLI-level configuration settings.
Package cliconfig has the types representing and the logic to load CLI-level configuration settings.
command/clistate
Package state exposes common helpers for working with state from the CLI.
Package state exposes common helpers for working with state from the CLI.
command/e2etest
Package e2etest contains a small number of tests that run against a real Terraform binary, compiled on the fly at the start of the test run.
Package e2etest contains a small number of tests that run against a real Terraform binary, compiled on the fly at the start of the test run.
command/format
Package format contains helpers for formatting various Terraform structures for human-readabout output.
Package format contains helpers for formatting various Terraform structures for human-readabout output.
command/jsonconfig
Package jsonconfig implements methods for outputting a configuration snapshot in machine-readable json format
Package jsonconfig implements methods for outputting a configuration snapshot in machine-readable json format
command/jsonplan
Package jsonplan implements methods for outputting a plan in a machine-readable json format
Package jsonplan implements methods for outputting a plan in a machine-readable json format
command/jsonprovider
Package jsonprovider contains types and functions to marshal terraform provider schemas into a json formatted output.
Package jsonprovider contains types and functions to marshal terraform provider schemas into a json formatted output.
command/jsonstate
Package jsonstate implements methods for outputting a state in a machine-readable json format
Package jsonstate implements methods for outputting a state in a machine-readable json format
configs
Package configs contains types that represent Terraform configurations and the different elements thereof.
Package configs contains types that represent Terraform configurations and the different elements thereof.
configs/configload
Package configload knows how to install modules into the .terraform/modules directory and to load modules from those installed locations.
Package configload knows how to install modules into the .terraform/modules directory and to load modules from those installed locations.
configs/configschema
Package configschema contains types for describing the expected structure of a configuration block whose shape is not known until runtime.
Package configschema contains types for describing the expected structure of a configuration block whose shape is not known until runtime.
dag
depsfile
Package depsfile contains the logic for reading and writing Terraform's dependency lock and development override configuration files.
Package depsfile contains the logic for reading and writing Terraform's dependency lock and development override configuration files.
e2e
earlyconfig
Package earlyconfig is a specialized alternative to the top-level "configs" package that does only shallow processing of configuration and is therefore able to be much more liberal than the full config loader in what it accepts.
Package earlyconfig is a specialized alternative to the top-level "configs" package that does only shallow processing of configuration and is therefore able to be much more liberal than the full config loader in what it accepts.
experiments
Package experiments contains the models and logic for opt-in experiments that can be activated for a particular Terraform module.
Package experiments contains the models and logic for opt-in experiments that can be activated for a particular Terraform module.
getproviders
Package getproviders is the lowest-level provider automatic installation functionality.
Package getproviders is the lowest-level provider automatic installation functionality.
helper/wrappedreadline
wrappedreadline is a package that has helpers for interacting with readline from a panicwrap executable.
wrappedreadline is a package that has helpers for interacting with readline from a panicwrap executable.
helper/wrappedstreams
Package wrappedstreams provides access to the standard OS streams (stdin, stdout, stderr) even if wrapped under panicwrap.
Package wrappedstreams provides access to the standard OS streams (stdin, stdout, stderr) even if wrapped under panicwrap.
initwd
Package initwd contains various helper functions used by the "terraform init" command to initialize a working directory.
Package initwd contains various helper functions used by the "terraform init" command to initialize a working directory.
lang
Package lang deals with the runtime aspects of Terraform's configuration language, with concerns such as expression evaluation.
Package lang deals with the runtime aspects of Terraform's configuration language, with concerns such as expression evaluation.
lang/blocktoattr
Package blocktoattr includes some helper functions that can perform preprocessing on a HCL body where a configschema.Block schema is available in order to allow list and set attributes defined in the schema to be optionally written by the user as block syntax.
Package blocktoattr includes some helper functions that can perform preprocessing on a HCL body where a configschema.Block schema is available in order to allow list and set attributes defined in the schema to be optionally written by the user as block syntax.
legacy/helper/acctest
Package acctest contains for Terraform Acceptance Tests
Package acctest contains for Terraform Acceptance Tests
legacy/helper/schema
Package schema is a legacy package that used to represent the SDK, which is now its own library external to Terraform Core https://github.com/hashicorp/terraform-plugin-sdk Some of it is still used by Terraform's remote state backends, but this entire package should be removed in the future.
Package schema is a legacy package that used to represent the SDK, which is now its own library external to Terraform Core https://github.com/hashicorp/terraform-plugin-sdk Some of it is still used by Terraform's remote state backends, but this entire package should be removed in the future.
modsdir
Package modsdir is an internal package containing the model types used to represent the manifest of modules in a local modules cache directory.
Package modsdir is an internal package containing the model types used to represent the manifest of modules in a local modules cache directory.
moduledeps
Package moduledeps contains types that can be used to describe the providers required for all of the modules in a module tree.
Package moduledeps contains types that can be used to describe the providers required for all of the modules in a module tree.
moduletest
Package moduletest contains the support code for some experimental features we're using to evaluate strategies for having an opinionated approach to testing of Terraform modules.
Package moduletest contains the support code for some experimental features we're using to evaluate strategies for having an opinionated approach to testing of Terraform modules.
plans
Package plans contains the types that are used to represent Terraform plans.
Package plans contains the types that are used to represent Terraform plans.
plans/internal/planproto
Package planproto is home to the Go stubs generated from the tfplan protobuf schema.
Package planproto is home to the Go stubs generated from the tfplan protobuf schema.
plans/objchange
Package objchange deals with the business logic of taking a prior state value and a config value and producing a proposed new merged value, along with other related rules in this domain.
Package objchange deals with the business logic of taking a prior state value and a config value and producing a proposed new merged value, along with other related rules in this domain.
plans/planfile
Package planfile deals with the file format used to serialize plans to disk and then deserialize them back into memory later.
Package planfile deals with the file format used to serialize plans to disk and then deserialize them back into memory later.
plugin/mock_proto
Package mock_tfplugin5 is a generated GoMock package.
Package mock_tfplugin5 is a generated GoMock package.
plugin6/mock_proto
Package mock_tfplugin6 is a generated GoMock package.
Package mock_tfplugin6 is a generated GoMock package.
provider-simple
simple provider a minimal provider implementation for testing
simple provider a minimal provider implementation for testing
provider-simple-v6
simple provider a minimal provider implementation for testing
simple provider a minimal provider implementation for testing
providercache
Package providercache contains the logic for auto-installing providers from packages obtained elsewhere, and for managing the local directories that serve as global or single-configuration caches of those auto-installed providers.
Package providercache contains the logic for auto-installing providers from packages obtained elsewhere, and for managing the local directories that serve as global or single-configuration caches of those auto-installed providers.
providers
Package providers contains the interface and primary types required to implement a Terraform resource provider.
Package providers contains the interface and primary types required to implement a Terraform resource provider.
provisioners
Package provisioners contains the interface and primary types to implement a Terraform resource provisioner.
Package provisioners contains the interface and primary types to implement a Terraform resource provisioner.
registry/regsrc
Package regsrc provides helpers for working with source strings that identify resources within a Terraform registry.
Package regsrc provides helpers for working with source strings that identify resources within a Terraform registry.
repl
Package repl provides the structs and functions necessary to run REPL for Terraform.
Package repl provides the structs and functions necessary to run REPL for Terraform.
replacefile
Package replacefile is a small helper package focused directly at the problem of atomically "renaming" one file over another one.
Package replacefile is a small helper package focused directly at the problem of atomically "renaming" one file over another one.
states
Package states contains the types that are used to represent Terraform states.
Package states contains the types that are used to represent Terraform states.
states/statefile
Package statefile deals with the file format used to serialize states for persistent storage and then deserialize them into memory again later.
Package statefile deals with the file format used to serialize states for persistent storage and then deserialize them into memory again later.
states/statemgr
Package statemgr defines the interfaces and some supporting functionality for "state managers", which are components responsible for writing state to some persistent storage and then later retrieving it.
Package statemgr defines the interfaces and some supporting functionality for "state managers", which are components responsible for writing state to some persistent storage and then later retrieving it.
terminal
Package terminal encapsulates some platform-specific logic for detecting if we're running in a terminal and, if so, properly configuring that terminal to meet the assumptions that the rest of Terraform makes.
Package terminal encapsulates some platform-specific logic for detecting if we're running in a terminal and, if so, properly configuring that terminal to meet the assumptions that the rest of Terraform makes.
tfdiags
Package tfdiags is a utility package for representing errors and warnings in a manner that allows us to produce good messages for the user.
Package tfdiags is a utility package for representing errors and warnings in a manner that allows us to produce good messages for the user.
typeexpr
Package typeexpr is a fork of github.com/hashicorp/hcl/v2/ext/typeexpr which has additional experimental support for optional attributes.
Package typeexpr is a fork of github.com/hashicorp/hcl/v2/ext/typeexpr which has additional experimental support for optional attributes.

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