![]() Values, unless interactive input is disabled. Interactively: Terraform will interactively ask you for the required ![]() Key/value pair, use the -backend-config="KEY=VALUE" option when running History file, so this isn't recommended for secrets. ![]() Note that many shells retain command-line flags in a In which case it must be downloaded to the local disk before running Terraform.Ĭommand-line key/value pairs: Key/value pairs can be specified via the If the file contains secrets it may be kept in To specify a file, use the -backend-config=PATH option when running There are several ways to supply the remaining arguments:įile: A configuration file may be specified via the init command line. Provided as part of the initialization process. With a partial configuration, the remaining configuration arguments must be The arguments are omitted, we call this a partial configuration. Omitting certain arguments may be desirable if some arguments are providedĪutomatically by an automation script running Terraform. You do not need to specify every required argument in the backend configuration. Important: Before migrating to a new backend, we strongly recommend manually backing up your state by copying your terraform.tfstate file This lets you adopt backends without losing When you change backends, Terraform gives you the option to migrate Terraform stores the terraform.tfstate file in your remote backend. The local backend configuration is different and entirely separate from the terraform.tfstate file that contains state data about your real-world infrastruture. Do not check this directory into Git, as it may contain sensitive credentials for your remote backend. This directory contains the most recent backend configuration, including any authentication parameters you provided to the Terraform CLI. To validate and configure the backend before you can perform any plans, applies,Īfter you initialize, Terraform creates a. When you change a backend's configuration, you must run terraform init again If a configuration includes no backend block, Terraform defaults to using the local backend, which stores state as a plain file in the current working directory. Refer to the page for each backend type for full details and that type's configuration arguments. Instead, leave those arguments completely unset and provide credentials using the credentials files or environment variables that are conventional for the target system, as described in the documentation for each backend. However, in normal use, we do not recommend including access credentials as part of the backend configuration. Some backends allow providing access credentials directly as part of the configuration for use in unusual situations, for pragmatic reasons. The arguments used in the block's body are specific to the chosen backend type they configure where and how the backend will store the configuration's state, and in some cases configure other behavior. Terraform has a built-in selection of backends, and the configured backend must be available in the version of Terraform you are using. The block label of the backend block ( "remote", in the example above) indicates which backend type to use. Use environment variables to pass credentials when you need to use different values between the plan and apply steps. If that configuration contains time-limited credentials, they may expire before you finish applying the plan. When applying a plan that you previously saved to a file, Terraform uses the backend configuration stored in that file instead of the current backend settings. ![]() This helps ensure Terraform is applying the plan to correct set of infrastructure. terraform/terraform.tfstate at the time the plan was created.
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