Update to Terraform 0.15

.circleci/config.yml

@@ -3,8 +3,8 @@ env: &env
     GRUNTWORK_INSTALLER_VERSION: v0.0.34
     MODULE_CI_VERSION: v0.29.2
     MODULE_GCP_CI_VERSION: v0.1.1
-    TERRAFORM_VERSION: 0.14.0
-    TERRAGRUNT_VERSION: v0.24.2
+    TERRAFORM_VERSION: 0.15.0
+    TERRAGRUNT_VERSION: v0.28.24
     PACKER_VERSION: 1.6.6
     GO_VERSION: 1.14
     K8S_VERSION: v1.15.0  # Same as EKS

examples/terraform-asg-scp-example/main.tf

@@ -26,7 +26,7 @@ provider "aws" {
 resource "aws_launch_template" "sample_launch_template" {
   name_prefix            = var.instance_name
   image_id               = data.aws_ami.ubuntu.id
-  instance_type          = "t2.micro"
+  instance_type          = var.instance_type
   vpc_security_group_ids = [aws_security_group.example.id]
   key_name               = var.key_pair_name
 }

examples/terraform-asg-scp-example/variables.tf

@@ -39,3 +39,8 @@ variable "ssh_port" {
   default     = 22
 }
 
+variable "instance_type" {
+  description = "The EC2 instance type to run."
+  type        = string
+  default     = "t2.micro"
+}

examples/terraform-aws-example/main.tf

@@ -17,7 +17,7 @@ terraform {
 
 resource "aws_instance" "example" {
   ami           = data.aws_ami.ubuntu.id
-  instance_type = "t2.micro"
+  instance_type = var.instance_type
 
   tags = {
     Name = var.instance_name

examples/terraform-aws-example/variables.tf

@@ -22,3 +22,8 @@ variable "instance_name" {
   default     = "terratest-example"
 }
 
+variable "instance_type" {
+  description = "The EC2 instance type to run."
+  type        = string
+  default     = "t2.micro"
+}

examples/terraform-aws-ssm-example/main.tf

@@ -66,7 +66,7 @@ data "aws_ami" "amazon_linux_2" {
 
 resource "aws_instance" "example" {
   ami                         = data.aws_ami.amazon_linux_2.id
-  instance_type               = "t2.micro"
+  instance_type               = var.instance_type
   associate_public_ip_address = true
   iam_instance_profile        = aws_iam_instance_profile.example.name
 }

examples/terraform-aws-ssm-example/variables.tf

@@ -21,3 +21,9 @@ variable "region" {
   description = "The AWS region to deploy into"
   default     = "us-east-1"
 }
+
+variable "instance_type" {
+  description = "The EC2 instance type to run."
+  type        = string
+  default     = "t2.micro"
+}

examples/terraform-http-example/main.tf

@@ -25,7 +25,7 @@ provider "aws" {
 
 resource "aws_instance" "example" {
   ami                    = data.aws_ami.ubuntu.id
-  instance_type          = "t2.micro"
+  instance_type          = var.instance_type
   user_data              = data.template_file.user_data.rendered
   vpc_security_group_ids = [aws_security_group.example.id]
 

examples/terraform-http-example/variables.tf

@@ -40,3 +40,8 @@ variable "instance_text" {
   default     = "Hello, World!"
 }
 
+variable "instance_type" {
+  description = "The EC2 instance type to run."
+  type        = string
+  default     = "t2.micro"
+}

examples/terraform-packer-example/main.tf

@@ -25,7 +25,7 @@ provider "aws" {
 
 resource "aws_instance" "example" {
   ami                    = var.ami_id
-  instance_type          = "t2.micro"
+  instance_type          = var.instance_type
   user_data              = data.template_file.user_data.rendered
   vpc_security_group_ids = [aws_security_group.example.id]
 

examples/terraform-packer-example/variables.tf

@@ -45,3 +45,8 @@ variable "instance_text" {
   default     = "Hello, World!"
 }
 
+variable "instance_type" {
+  description = "The EC2 instance type to run."
+  type        = string
+  default     = "t2.micro"
+}

examples/terraform-redeploy-example/main.tf

@@ -69,7 +69,7 @@ resource "aws_autoscaling_group" "web_servers" {
 
 resource "aws_launch_configuration" "web_servers" {
   image_id        = data.aws_ami.ubuntu.id
-  instance_type   = "t2.micro"
+  instance_type   = var.instance_type
   security_groups = [aws_security_group.web_server.id]
   user_data       = data.template_file.user_data.rendered
   key_name        = var.key_pair_name

examples/terraform-redeploy-example/variables.tf

@@ -58,3 +58,8 @@ variable "key_pair_name" {
   default     = ""
 }
 
+variable "instance_type" {
+  description = "The EC2 instance type to run."
+  type        = string
+  default     = "t2.micro"
+}

examples/terraform-ssh-example/main.tf

@@ -25,7 +25,7 @@ provider "aws" {
 
 resource "aws_instance" "example_public" {
   ami                    = data.aws_ami.ubuntu.id
-  instance_type          = "t2.micro"
+  instance_type          = var.instance_type
   vpc_security_group_ids = [aws_security_group.example.id]
   key_name               = var.key_pair_name
 
@@ -43,7 +43,7 @@ resource "aws_instance" "example_public" {
 
 resource "aws_instance" "example_private" {
   ami                    = data.aws_ami.ubuntu.id
-  instance_type          = "t2.micro"
+  instance_type          = var.instance_type
   vpc_security_group_ids = [aws_security_group.example.id]
   key_name               = var.key_pair_name
 

examples/terraform-ssh-example/variables.tf

@@ -39,3 +39,8 @@ variable "ssh_port" {
   default     = 22
 }
 
+variable "instance_type" {
+  description = "The EC2 instance type to run."
+  type        = string
+  default     = "t2.micro"
+}

examples/terraform-ssh-password-example/main.tf

@@ -25,7 +25,7 @@ provider "aws" {
 
 resource "aws_instance" "example_public" {
   ami           = data.aws_ami.ubuntu.id
-  instance_type = "t2.micro"
+  instance_type = var.instance_type
   user_data     = data.template_file.user_data.rendered
 
   vpc_security_group_ids = [

examples/terraform-ssh-password-example/variables.tf

@@ -39,3 +39,8 @@ variable "ssh_port" {
   default     = 22
 }
 
+variable "instance_type" {
+  description = "The EC2 instance type to run."
+  type        = string
+  default     = "t2.micro"
+}

modules/terraform/plan_test.go

@@ -80,7 +80,7 @@ func TestInitAndPlanWithPlanFile(t *testing.T) {
 	out, err := InitAndPlanE(t, options)
 	require.NoError(t, err)
 	assert.Contains(t, out, "1 to add, 0 to change, 0 to destroy.")
-	assert.Contains(t, out, fmt.Sprintf("This plan was saved to: %s", planFilePath))
+	assert.Contains(t, out, fmt.Sprintf("Saved the plan to: %s", planFilePath))
 	assert.FileExists(t, planFilePath, "Plan file was not saved to expected location:", planFilePath)
 }
 

modules/terraform/show_test.go

@@ -25,7 +25,7 @@ func TestShowWithInlinePlan(t *testing.T) {
 	}
 
 	out := InitAndPlan(t, options)
-	require.Contains(t, out, fmt.Sprintf("This plan was saved to: %s", planFilePath))
+	require.Contains(t, out, fmt.Sprintf("Saved the plan to: %s", planFilePath))
 	require.FileExists(t, planFilePath, "Plan file was not saved to expected location:", planFilePath)
 
 	// show command does not accept Vars

test/azure/terraform_azure_postgresql_example_test.go

@@ -1,3 +1,8 @@
+// +build azure
+
+// NOTE: We use build tags to differentiate azure testing because we currently do not have azure access setup for
+// CircleCI.
+
 package test
 
 import (

test/terraform_aws_example_plan_test.go

@@ -28,6 +28,9 @@ func TestTerraformAwsExamplePlan(t *testing.T) {
 	// Pick a random AWS region to test in. This helps ensure your code works in all regions.
 	awsRegion := aws.GetRandomStableRegion(t, nil, nil)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, awsRegion, []string{"t2.micro", "t3.micro"})
+
 	// website::tag::1::Configure Terraform setting path to Terraform code, EC2 instance name, and AWS Region. We also
 	// configure the options with default retryable errors to handle the most common retryable errors encountered in
 	// terraform testing.
@@ -39,6 +42,7 @@ func TestTerraformAwsExamplePlan(t *testing.T) {
 		// Variables to pass to our Terraform code using -var options
 		Vars: map[string]interface{}{
 			"instance_name": expectedName,
+			"instance_type": instanceType,
 		},
 
 		// Environment variables to set when running Terraform

test/terraform_aws_example_test.go

@@ -26,6 +26,9 @@ func TestTerraformAwsExample(t *testing.T) {
 	// Pick a random AWS region to test in. This helps ensure your code works in all regions.
 	awsRegion := aws.GetRandomStableRegion(t, nil, nil)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, awsRegion, []string{"t2.micro", "t3.micro"})
+
 	// website::tag::1::Configure Terraform setting path to Terraform code, EC2 instance name, and AWS Region. We also
 	// configure the options with default retryable errors to handle the most common retryable errors encountered in
 	// terraform testing.
@@ -36,6 +39,7 @@ func TestTerraformAwsExample(t *testing.T) {
 		// Variables to pass to our Terraform code using -var options
 		Vars: map[string]interface{}{
 			"instance_name": expectedName,
+			"instance_type": instanceType,
 		},
 
 		// Environment variables to set when running Terraform

test/terraform_aws_ssm_example_test.go

@@ -13,10 +13,14 @@ func TestTerraformAwsSsmExample(t *testing.T) {
 	t.Parallel()
 	region := aws.GetRandomStableRegion(t, nil, nil)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, region, []string{"t2.micro", "t3.micro"})
+
 	terraformOptions := terraform.WithDefaultRetryableErrors(t, &terraform.Options{
 		TerraformDir: "../examples/terraform-aws-ssm-example",
 		Vars: map[string]interface{}{
-			"region": region,
+			"region":        region,
+			"instance_type": instanceType,
 		},
 	})
 	defer terraform.Destroy(t, terraformOptions)

test/terraform_http_example_test.go

@@ -30,6 +30,9 @@ func TestTerraformHttpExample(t *testing.T) {
 	// Pick a random AWS region to test in. This helps ensure your code works in all regions.
 	awsRegion := aws.GetRandomStableRegion(t, nil, nil)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, awsRegion, []string{"t2.micro", "t3.micro"})
+
 	// Construct the terraform options with default retryable errors to handle the most common retryable errors in
 	// terraform testing.
 	terraformOptions := terraform.WithDefaultRetryableErrors(t, &terraform.Options{
@@ -41,6 +44,7 @@ func TestTerraformHttpExample(t *testing.T) {
 			"aws_region":    awsRegion,
 			"instance_name": instanceName,
 			"instance_text": instanceText,
+			"instance_type": instanceType,
 		},
 	})
 

test/terraform_packer_example_test.go

@@ -119,6 +119,9 @@ func deployUsingTerraform(t *testing.T, awsRegion string, workingDir string) {
 	// Specify the text the EC2 Instance will return when we make HTTP requests to it.
 	instanceText := fmt.Sprintf("Hello, %s!", uniqueID)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, awsRegion, []string{"t2.micro", "t3.micro"})
+
 	// Load the AMI ID saved by the earlier build_ami stage
 	amiID := test_structure.LoadAmiId(t, workingDir)
 
@@ -133,6 +136,7 @@ func deployUsingTerraform(t *testing.T, awsRegion string, workingDir string) {
 			"aws_region":    awsRegion,
 			"instance_name": instanceName,
 			"instance_text": instanceText,
+			"instance_type": instanceType,
 			"ami_id":        amiID,
 		},
 	})

test/terraform_redeploy_example_test.go

@@ -88,6 +88,9 @@ func initialDeploy(t *testing.T, awsRegion string, workingDir string) {
 	// Specify the text the ASG will return when we make HTTP requests to it.
 	text := fmt.Sprintf("Hello, %s!", uniqueID)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, awsRegion, []string{"t2.micro", "t3.micro"})
+
 	// Construct the terraform options with default retryable errors to handle the most common retryable errors in
 	// terraform testing.
 	terraformOptions := terraform.WithDefaultRetryableErrors(t, &terraform.Options{
@@ -99,6 +102,7 @@ func initialDeploy(t *testing.T, awsRegion string, workingDir string) {
 			"aws_region":    awsRegion,
 			"instance_name": name,
 			"instance_text": text,
+			"instance_type": instanceType,
 			"key_pair_name": keyPair.Name,
 		},
 	})

test/terraform_scp_example_test.go

@@ -82,6 +82,9 @@ func createTerraformOptions(t *testing.T, exampleFolder string) (*terraform.Opti
 	// Pick a random AWS region to test in. This helps ensure your code works in all regions.
 	awsRegion := aws.GetRandomStableRegion(t, nil, nil)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, awsRegion, []string{"t2.micro", "t3.micro"})
+
 	// Create an EC2 KeyPair that we can use for SSH access
 	keyPairName := fmt.Sprintf("terratest-asg-scp-example-%s", uniqueID)
 	keyPair := aws.CreateAndImportEC2KeyPair(t, awsRegion, keyPairName)
@@ -97,6 +100,7 @@ func createTerraformOptions(t *testing.T, exampleFolder string) (*terraform.Opti
 			"aws_region":    awsRegion,
 			"instance_name": instanceName,
 			"key_pair_name": keyPairName,
+			"instance_type": instanceType,
 		},
 	})
 

test/terraform_ssh_example_test.go

@@ -72,6 +72,9 @@ func configureTerraformOptions(t *testing.T, exampleFolder string) (*terraform.O
 	// Pick a random AWS region to test in. This helps ensure your code works in all regions.
 	awsRegion := aws.GetRandomStableRegion(t, nil, nil)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, awsRegion, []string{"t2.micro", "t3.micro"})
+
 	// Create an EC2 KeyPair that we can use for SSH access
 	keyPairName := fmt.Sprintf("terratest-ssh-example-%s", uniqueID)
 	keyPair := aws.CreateAndImportEC2KeyPair(t, awsRegion, keyPairName)
@@ -86,6 +89,7 @@ func configureTerraformOptions(t *testing.T, exampleFolder string) (*terraform.O
 		Vars: map[string]interface{}{
 			"aws_region":    awsRegion,
 			"instance_name": instanceName,
+			"instance_type": instanceType,
 			"key_pair_name": keyPairName,
 		},
 	})

test/terraform_ssh_password_example_test.go

@@ -60,6 +60,9 @@ func configureTerraformSshPasswordOptions(t *testing.T, exampleFolder string) *t
 	// Pick a random AWS region to test in. This helps ensure your code works in all regions.
 	awsRegion := aws.GetRandomStableRegion(t, nil, nil)
 
+	// Some AWS regions are missing certain instance types, so pick an available type based on the region we picked
+	instanceType := aws.GetRecommendedInstanceType(t, awsRegion, []string{"t2.micro", "t3.micro"})
+
 	// Create a random password that we can use for SSH access.
 	password := random.UniqueId()
 
@@ -73,6 +76,7 @@ func configureTerraformSshPasswordOptions(t *testing.T, exampleFolder string) *t
 		Vars: map[string]interface{}{
 			"aws_region":         awsRegion,
 			"instance_name":      instanceName,
+			"instance_type":      instanceType,
 			"terratest_password": password,
 		},
 	})