fix test bug, add document

examples/elastikube-cluster/README.md

@@ -0,0 +1,76 @@
+# Elastikube Cluster Example
+
+This folder contains a simple Terraform module that deploys resources in [AWS](https://aws.amazon.com/) to demonstrate
+how you can use Terratest to write automated tests for your AWS Terraform code. This module deploys AWS VPC with bastion hot, self-hosted Kubernetes with two worker group (spot and on demand instance) [EC2
+Instances](https://aws.amazon.com/ec2/) in the AWS region specified in
+the `aws_region` variable.
+
+Check out [test/elastikube_cluster_test.go](/test/elastikube_cluster_test.go) to see how you can write
+automated tests for this module.
+
+**WARNING**: This module and the automated tests for it deploy real resources into your AWS account which can cost you
+money.
+
+
+
+
+
+## Running this module manually
+
+1. Sign up for [AWS](https://aws.amazon.com/).
+2. Configure your AWS credentials using one of the [supported methods for AWS CLI
+   tools](https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html), such as setting the
+   `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` environment variables. If you're using the `~/.aws/config` file for profiles then export `AWS_SDK_LOAD_CONFIG` as "True".
+3. Install [Terraform](https://www.terraform.io/) and make sure it's on your `PATH`.
+
+4. Execute below command to setup
+    ```
+    # initial for sync terraform module and install provider plugins
+
+    ~$ terraform init
+
+    # create the network infrastructure
+
+    ~$ terraform apply -target=module.network
+
+    # create the kubernetes master compoment
+
+    ~$ terraform apply -target=module.kubernetes
+
+    # create the general and spot k8s worker group
+    ~$ terraform apply
+    ```
+
+5. When you're done, execute below command to destroy
+
+    ```
+    $ terraform destroy -target=module.worker_spot
+    $ terraform destroy -target=module.worker_general
+    $ terraform destroy -target=module.kubernetes
+    $ terraform destroy -target=module.network
+    ```
+
+
+
+
+## Running automated tests against this module
+
+0. Perform the testing in the AWS EC2, instead of desktop, due to this module create many AWS resource, it takes time to destroy. Executing in the AWS EC2 decrease the risk to fail to teardown
+1. Sign up for [AWS](https://aws.amazon.com/).
+2. Configure your AWS credentials using one of the [supported methods for AWS CLI
+   tools](https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html), such as setting the
+   `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` environment variables. If you're using the `~/.aws/config` file for profiles then export `AWS_SDK_LOAD_CONFIG` as "True".
+3. Install [Terraform](https://www.terraform.io/) and make sure it's on your `PATH`.
+4. Install [Golang](https://golang.org/) and make sure this code is checked out into your `GOPATH`.
+5. Install [kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/) and make sure it's on your `PATH`.
+6. `cd test`
+7. `dep ensure`
+8. `go test -timeout 60m -v -run TestElastikubeCluster`
+9. if execution without error, the output like below
+    ```
+    ...
+        agent.go:114: Generating SSH Agent with given KeyPair(s)
+        agent.go:68: could not serve ssh agent read unix /tmp/ssh-agent-589722746/ssh_auth.sock->@: use of closed network connection
+    PASS
+    ok  	github.com/vishwakarma/test	1223.186s
+    ```

examples/elastikube-cluster/variables.tf

@@ -1,6 +1,6 @@
 variable "aws_region" {
   type        = "string"
-  default     = "us-east-1"
+  default     = "us-west-2"
   description = "(Optional) The AWS region"
 }
 

test/elastikube_cluster_test.go

@@ -47,7 +47,8 @@ func TestElastikubeCluster(t *testing.T) {
 
 		keyPair := test_structure.LoadEc2KeyPair(t, exampleFolder)
 		aws.DeleteEC2KeyPair(t, keyPair)
-		test_structure.CleanupTestData(t, exampleFolder)
+		testData := fmt.Sprintf("%s/.test-data", exampleFolder)
+		os.Remove(testData)
 	})
 
 	// Deploy the example