Add tests

Makefile

@@ -16,6 +16,11 @@ variables-modules-merge.tf.json: variables-modules.tf
 	./make-modules $< > $@
 
 test: modules fmt lint init validate
+	$(MAKE) -C test/
+
+clean:
+	rm -rf ./.terraform ./.terraform.lock.hcl
+	$(MAKE) -C test/ clean
 
 i init:
 	terraform init
@@ -33,7 +38,7 @@ v validate:
 f fmt:
 	terraform fmt
 
-release: modules fmt update-version
+release: import modules fmt update-version
 	$(MAKE) build-release
 
 update-version:

test/Makefile

@@ -0,0 +1,11 @@
+all: test
+
+test: .terraform/modules/modules.json
+	terraform validate
+	terraform plan
+
+.terraform/modules/modules.json: main.tf
+	terraform init
+
+clean:
+	rm -rf ./.terraform ./.terraform.lock.hcl

test/main.tf

@@ -0,0 +1,40 @@
+terraform {
+  required_providers {
+    kubectl = {
+      source  = "gavinbunney/kubectl"
+      version = "~> 1"
+    }
+
+    kubernetes = {
+      version = "~> 2.8"
+    }
+
+    kustomization = {
+      source  = "kbst/kustomization"
+      version = "< 1"
+    }
+
+    random = {
+      version = "~> 2"
+    }
+
+    shell = {
+      source  = "scottwinkler/shell"
+      version = "~> 1"
+    }
+  }
+}
+
+provider "kustomization" {
+  kubeconfig_raw = ""
+}
+
+module "cluster" {
+  source = "../"
+
+  cluster_name = "cluster_name"
+  customer_name = "customer_name"
+
+  kubernetes_version = "v0.0.0"
+  ssh_user = "root"
+}