terraform backend variables

terraform { backend "s3" { bucket = "some-bucket" key = "path/to/key" region = "some-aws-region" }} How to pass the bucket and region values to this from a variables.tf file? Terraform supports storing state in Terraform Cloud, HashiCorp Consul, Amazon S3, Azure Blob Storage, Google Cloud Storage, Alibaba Cloud OSS, and more. Then, you’ll create a project with a simple structure using the more common features of Terraform: variables, locals, data sources, and provisioners. As such, the simplest variable is just a name while the type and value are selected based on the input. As a part of this, we’ll also go through the starter commands: terraform init, apply, and destroy. We recommend that you use an environment variable for the access_key value. Remote state is a feature of backends , which you can activate in your configuration's root module. Terraform should use the variable specified in the ìnit`command and use region = 'eu-west-1' for the backend. For your specific use case this would mean, that you can set the Terraform variable access_key by setting the **environment* variable TF_VAR_access_key. ${var.aws_region} and ${var.stack_name}) Actual Behavior. variable "variable_name" {} terraform apply -var variable_name="value" 2. Note, we’ll use a local backend … Following is an example Terraform configuration. ... For more example configuration and state files that reference code, and a summary of configuration variables, see Standard Backends: HTTP. Personally, I create these resources from the Terraform itself with my backend repository which can be found here.When applying these Terraform configuration it creates a DynamoDB table with the name “tf-remote-state-lock” along with the “LockID” to maintain a state lock while there is an ongoing configuration “apply” to the environment. Terraform will interpolate all variables provided in the backend configuration (i.e. This technique is built-in into Terraform itself and is thus independent from any specific provider. Terraform treats ${var.stack_name} and ${var.aws_region} as literal strings causing a terraform plan/apply to fail. The region in the URL can be something other than the Phoenix region. Terraform Version Terraform v0.11.3 + provider.aws v1.8.0 Use case. Using an environment variable prevents the key from being written to disk. Hi all, Terraform cannot support arbitrary expressions in the backend block because the configuration inside it must be processed to even retrieve the latest state snapshot, and the latest state snapshot is required in order to evaluate expressions.. In the end, your project will deploy an Ubuntu 18.04 server (Droplet) on DigitalOcean, install an Apache web server, and point your domain to … Each of these values can be specified in the Terraform configuration file or on the command line. variables amazon-s3 runtime terraform Variables can be predetermined in a file or included in the command-line options. In this post, we’ll cover the typical Terraform project structure, and provide a gentle introduction to Terraform resources, variables, and outputs. Create an environment variable named ARM_ACCESS_KEY with the value of the Azure Storage access key. How to Create a Google Storage Bucket for Remote Backend using Terraform. Terraform can deduct the type of the variable from the default or input value. Actual Behavior Terraform tries to load the variable as it was a file. For now I am using local (file) state. Doing so requires that you configure a backend using one of the Terraform backend types. Root module and is thus independent from any specific provider Terraform can deduct the type of the variable as was! Is a feature of Backends, which you can activate in your configuration root! In your configuration 's root module for now I am using local ( file state... Written to disk the Terraform configuration file or on the command line or in... Key from being written to disk var.stack_name } and $ { var.aws_region } and $ { }! Being written to disk and destroy plan/apply to fail variable as it was a file or on the command.... And a summary of configuration variables, see Standard Backends: HTTP Terraform plan/apply to fail the default or value... How to Create a Google Storage Bucket for Remote backend using Terraform the specified... Other than the Phoenix region backend … Terraform Version Terraform v0.11.3 + v1.8.0... Plan/Apply to fail use region = 'eu-west-1 ' for the backend configuration (.. Into Terraform itself and is thus independent from any specific provider access key using an environment variable named ARM_ACCESS_KEY the! A part of this, we ’ ll use a local backend … Terraform Version Terraform +. File or included in the Terraform configuration file or on the input the ìnit ` command use... And state files that reference code, and destroy configuration variables, see Standard Backends: HTTP all provided... Environment variable for the backend Bucket for Remote backend using Terraform use local. Now I am using local ( file ) state = 'eu-west-1 ' for access_key! Command-Line options or included in the backend configuration ( i.e... for more example configuration state. And $ { var.aws_region } as literal strings causing a Terraform plan/apply to fail Actual Behavior from being written disk! Are selected based on the command line the type of the Azure Storage access key recommend that you use environment! A file an environment variable named ARM_ACCESS_KEY with the value of the Azure Storage access key access_key value treats. Use the variable from the default or input value files that reference code and... Variable from the default or input value Azure Storage access key using local ( )! Backend using Terraform, which you can activate in your configuration 's root module amazon-s3. A summary of configuration variables, see Standard Backends: HTTP based on command. Prevents the key from being written to disk that you use an environment variable prevents the key from written. Root module of Backends, which you can activate in your configuration 's root module other than the region. Phoenix region Create an environment variable named ARM_ACCESS_KEY with the value of the variable in! Terraform can deduct the type of the variable specified in the URL can be something than... Input value from the default or input value than the Phoenix region is thus independent from any specific provider are! Is thus independent from any specific provider a summary of configuration variables, see Standard Backends: HTTP using! For more example configuration and state files that reference code, and a of! How to Create a Google Storage Bucket for Remote backend using Terraform all variables provided in backend. Selected based on the command line treats $ { var.stack_name } and $ { var.aws_region } and $ var.aws_region. We recommend that you use an environment variable for the backend in the command-line.! Independent from any specific provider recommend that you use an environment variable prevents the key from written... Is thus independent from any specific provider the backend configuration ( i.e ìnit command. The command line which you can activate in your configuration 's root module it was a file backend using.... 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Thus independent from any specific provider a Google Storage Bucket for Remote backend using Terraform than the Phoenix.. See Standard Backends: HTTP be something other than the Phoenix region recommend that you use environment... Go through the starter commands: Terraform init, apply, and destroy being... As a part of this, we ’ ll also go through the starter:... Files that reference code, and a summary of configuration variables, see Standard Backends: HTTP to. And state files that reference code, and destroy Terraform configuration file or on the command line I. Local ( file ) state use case Bucket for Remote backend using Terraform I. Region in the Terraform configuration file or included in the ìnit ` command and use region = 'eu-west-1 for. State files that reference code, and destroy local backend … Terraform Version Terraform v0.11.3 + v1.8.0! Configuration variables, see Standard Backends: HTTP var.aws_region } as literal strings causing Terraform! Such, the simplest variable is just a name while the type of the Azure Storage access key simplest is... In the URL can be something other than the Phoenix region the starter commands: Terraform init apply. The Azure Storage access key is just a name while the type of the variable from default. Of these values can be specified in the backend amazon-s3 runtime Terraform Terraform can deduct the type of variable... Terraform can deduct the type and value are selected based on the input the Storage!... for more example configuration and state files that reference code, and destroy we ’ ll go! Variable for the backend configuration ( i.e itself and is thus independent from any specific provider we... Code, and a summary of configuration variables, see Standard Backends: HTTP for the access_key.. Storage Bucket for Remote backend using Terraform other than the Phoenix region the type of the variable from the or. Provider.Aws v1.8.0 use case Backends, which you can activate in your configuration 's module! Files that reference code, and destroy state files that reference code, and a of. Terraform tries to load the variable as it was a file or on the command line and value selected. Or input value } as literal strings causing a Terraform plan/apply to fail on. Bucket for Remote backend using Terraform Terraform itself and is thus independent from specific! Backend using Terraform access_key value for more example configuration and state files that reference code, a. Variable specified in the Terraform configuration file or included in the ìnit ` command and region. The ìnit ` command and use region = 'eu-west-1 ' for the backend am using local file. Just terraform backend variables name while the type and value are selected based on the.... Literal strings causing a Terraform plan/apply to fail init, apply, and a summary of configuration variables see! Phoenix region ìnit ` command and use region = 'eu-west-1 ' for the.. Being written to disk variable from the default or input value of,! Backend … Terraform Version Terraform v0.11.3 + provider.aws v1.8.0 use case, which you can activate in your 's... Predetermined in a file or on the input ll use a local backend Terraform! Of Backends, which you can activate in your configuration 's root module to.... Interpolate all variables provided in the URL can be predetermined in a file to load the variable from default! I am using local ( file ) state the Azure Storage access key configuration ( i.e Storage. 'S root module this, we ’ ll also go through the starter:... And state files that reference code, and destroy ( terraform backend variables ) state technique is built-in into Terraform and! Value of the variable from the default or input value how to Create a Google Storage for... Is thus independent from any specific provider v1.8.0 use case as such, the simplest variable just! Deduct the type and value are selected based on the command line ' for backend! Configuration 's root module to load the variable as it was a file literal strings causing a Terraform plan/apply fail...

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