stdlib: terraform support

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

tests/stdlib/terraform/s3/main.cue

@@ -0,0 +1,24 @@
+package testing
+
+import (
+	"dagger.io/dagger"
+
+	"dagger.io/terraform"
+	"dagger.io/aws"
+)
+
+TestData: dagger.#Artifact
+
+TestConfig: awsConfig: aws.#Config & {
+	region: "us-east-2"
+}
+
+TestTerraform: apply: terraform.#Configuration & {
+	source: TestData
+	env: {
+		AWS_ACCESS_KEY_ID:     TestConfig.awsConfig.accessKey
+		AWS_SECRET_ACCESS_KEY: TestConfig.awsConfig.secretKey
+		AWS_DEFAULT_REGION:    TestConfig.awsConfig.region
+		AWS_REGION:            TestConfig.awsConfig.region
+	}
+}

tests/stdlib/terraform/s3/testdata/test.tf

@@ -0,0 +1,34 @@
+terraform {
+  required_providers {
+    random = {
+      source = "hashicorp/random"
+      version = "3.1.0"
+    }
+  }
+
+  backend "s3" {
+    bucket = "dagger-ci"
+    key    = "terraform/tfstate"
+    region = "us-east-2"
+  }
+}
+
+provider "random" {
+}
+
+variable "input" {
+  type = string
+}
+
+resource "random_integer" "test" {
+  min = 1
+  max = 50
+}
+
+output "random" {
+  value = random_integer.test.result
+}
+
+output "input" {
+    value = var.input
+}