add new tests for IaC codebase

2022/Days/IaC/Terratest/examples/instance.tf

@@ -0,0 +1,12 @@
+resource "aws_instance" "example" {
+  ami           = var.AMIS[var.AWS_REGION]
+  instance_type = "t2.micro"
+  vpc_security_group_ids = [aws_security_group.instance.id]
+
+  # When the instance boots, start a web server on port 8080 that responds with "Hello, World!".
+  user_data = <<EOF
+#!/bin/bash
+echo "Hello, World!" > index.html
+nohup busybox httpd -f -p 8080 &
+EOF
+}

2022/Days/IaC/Terratest/examples/output.tf

@@ -0,0 +1,4 @@
+# Output the instance's public IP address.
+output "public_ip" {
+  value = aws_instance.example.public_ip
+}

2022/Days/IaC/Terratest/examples/provider.tf

@@ -0,0 +1,5 @@
+provider "aws" {
+  access_key = var.AWS_ACCESS_KEY
+  secret_key = var.AWS_SECRET_KEY
+  region     = var.AWS_REGION
+}

2022/Days/IaC/Terratest/examples/securitygroup.tf

@@ -0,0 +1,9 @@
+# Allow the instance to receive requests on port 8080.
+resource "aws_security_group" "instance" {
+  ingress {
+    from_port   = 8080
+    to_port     = 8080
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+}

2022/Days/IaC/Terratest/examples/terraform.tfvars

@@ -0,0 +1,3 @@
+AWS_ACCESS_KEY = "XXXX"
+AWS_SECRET_KEY = "XXXXXXXX"
+AWS_REGION="ap-south-1"

2022/Days/IaC/Terratest/examples/vars.tf

@@ -0,0 +1,16 @@
+variable "AWS_ACCESS_KEY" {
+}
+
+variable "AWS_SECRET_KEY" {
+}
+
+variable "AWS_REGION" {
+  default = "ap-south-1"
+}
+
+variable "AMIS" {
+  type = map(string)
+  default = {
+    ap-south-1 = "ami-0860c9429baba6ad2"
+  }
+}

2022/Days/IaC/Terratest/examples/versions.tf

@@ -0,0 +1,3 @@
+terraform {
+  required_version = ">= 0.12.26"
+}

2022/Days/IaC/Terratest/test/terraform_test.go

@@ -0,0 +1,34 @@
+package test
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	http_helper "github.com/gruntwork-io/terratest/modules/http-helper"
+
+	"github.com/gruntwork-io/terratest/modules/terraform"
+)
+
+func TestTerraformAwsHelloWorldExample(t *testing.T) {
+	t.Parallel()
+
+	/*Construct the terraform options with default retryable errors to handle the most common retryable errors in terraform testing. */
+	terraformOptions := terraform.WithDefaultRetryableErrors(t, &terraform.Options{
+		/* The path to where our Terraform code is located */
+		TerraformDir: "../examples",
+	})
+
+	/* At the end of the test, run `terraform destroy` to clean up any resources that were created.*/
+	defer terraform.Destroy(t, terraformOptions)
+
+	/* Run `terraform init` and `terraform apply`. Fail the test if there are any errors. */
+	terraform.InitAndApply(t, terraformOptions)
+
+	/* Run `terraform output` to get the IP of the instance */
+	publicIp := terraform.Output(t, terraformOptions, "public_ip")
+
+	/* Make an HTTP request to the instance and make sure we get back a 200 OK with the body "Hello, World!" */
+	url := fmt.Sprintf("http://%s:8080", publicIp)
+	http_helper.HttpGetWithRetry(t, url, nil, 200, "Hello, World!", 30, 5*time.Second)
+}