CODEWITHSUNDEEP
environment-variablesterraform
Heihade1
Heihade1

Reputation: 89

How to use environmental variables in Terraform?

I'm trying to use environmental variables in my Terraform templates.
Even after sourcing .env files and double checking by running echo $env_variable, it still won't work.
This only works if I manually specify the password in the variable file...

variable file:

variable "password" {}

.env file:

#!/bin/bash
export PASS="passwordfoo"

Then i run the following commands

terraform init
terraform plan \
-var "password=$PASS" \

And when I try terraform apply it prompts me:

terraform apply
var.password
  Enter a value:

I expect it to run without problems.
I have followed the steps provided by HashiCorp themselves: reference links.

Upvotes: 5

Views: 8983

Answers (2)

Piyush Sonigra
Piyush Sonigra

Reputation: 1648

Terraform can read Environment variables using tchupp provider.

Provider: https://registry.terraform.io/providers/tchupp/env/latest/docs/data-sources/variable https://registry.terraform.io/providers/tchupp/env/latest/docs/resources/variable

Example: https://github.com/tchupp/terraform-provider-env/blob/main/example/main.tf

provider "env" {}

resource "env_variable" "user" {
  name = "USER"
}

data "env_variable" "shell" {
  name = "SHELL"
}

terraform {
  required_version = "~> 0.13"
  required_providers {
    env = {
      source  = "github.com/tchupp/env"
    }
  }
}

Upvotes: 0

BMW
BMW

Reputation: 45343

terraform doesn't get system environment variable as your way export PASS="passwordfoo"

change in .env as below code and source it, it should work directly, you don't need feed as -var "password=$PASS"

#!/bin/bash
export TF_VAR_password="passwordfoo"

Reference:

https://www.terraform.io/docs/configuration/variables.html#environment-variables

Upvotes: 5

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