Terraform Makefile

Makefile

########################################################################
#		Variables													   #
########################################################################
PARAMS= # Dummy variables to pass commands to TF
PROJECT_DIR=$(shell pwd)

KUBE_CLUSTER_NAME=terraform-eks-demo

TERRAFORM_DIR=$(PROJECT_DIR)
BACKEND_CONF_PATH	 = $(TERRAFORM_DIR)/config/aws-personal-eks.conf
BOOTSTRAP_STACK_NAME = eks-knative
BOOTSTRAP_BUCKET_NAME = $(BOOTSTRAP_STACK_NAME)-state
BOOTSTRAP_DB_NAME = $(BOOTSTRAP_STACK_NAME)-lock
BOOTSTRAP_STACK_FILE = $(PROJECT_DIR)/bootstrap-cloudformation.yml
AWS_ACCOUNT_ID		 = 117243655954

########################################################################
#		Kubernetes Config										       #
########################################################################
.PHONY: kubeconfig
kubeconfig: ## Update Local kubectl with new EKS cluster
	@echo "Updating Kubectl with $(KUBE_CLUSTER_NAME) config from EKS"
	@aws eks update-kubeconfig --name $(KUBE_CLUSTER_NAME)
	@echo "DONE\n"

########################################################################
#		Terrform Config Code										   #
########################################################################
.PHONY: format
format: ## Autoformat the Terraform files
	@echo "Formatting Terraform Files"
	@terraform fmt -recursive $(TERRAFORM_DIR)
	@git add $(TERRAFORM_DIR)
	@echo "DONE\n"

.PHONY: validate
validate: lint ## Validate the Terraform files
	@echo "Validating Terraform Files"
	@terraform validate $(TERRAFORM_DIR)
	@echo "DONE\n"

.PHONY: lint
lint: format ## Lint the Terraform files (via tflint)
	@echo "Linting Terraform Files"
	@tflint -c $(TERRAFORM_DIR)/.tflint.hcl $(TERRAFORM_DIR)
	@echo "DONE\n"

.PHONY: deploy
deploy: lint ## Provision the Terraform infrastructure
	@echo "Deploying Terraform to AWS"
	@cd $(TERRAFORM_DIR); terraform apply $(TERRAFORM_DIR) $(PARAMS); cd $(PROJECT_DIR)
	@echo "DONE\n"

.PHONY: destroy
destroy: lint ## Destroy the Terraform provisioned infrastructure
	@echo "Tearing Down Terraform in AWS"
	@cd $(TERRAFORM_DIR); terraform destroy -auto-approve $(TERRAFORM_DIR); cd $(PROJECT_DIR)
	@echo "DONE\n"

.PHONY: init
init: ## Initalize the Terraform Stack
	@echo "Initalizing Terraform"
	@cd $(TERRAFORM_DIR); terraform init -backend-config=$(BACKEND_CONF_PATH); cd $(PROJECT_DIR)
	@echo "DONE\n"

.PHONY: bootstrap
bootstrap: ## Create infrastructure for Terraform remote state in AWS
	@echo "Deploying Terraform Bootstrap CloudFormation Stack"
	@aws cloudformation deploy \
		--template-file ${BOOTSTRAP_STACK_FILE} \
    	--stack-name ${BOOTSTRAP_STACK_NAME} \
    	--parameter-overrides AccountId=${AWS_ACCOUNT_ID} \
		BucketName=$(BOOTSTRAP_BUCKET_NAME) \
		DynamoDbTableName=$(BOOTSTRAP_DB_NAME) \
    	--capabilities CAPABILITY_IAM
	@aws cloudformation describe-stacks \
		--stack-name ${BOOTSTRAP_STACK_NAME} | \
		jq '.Stacks[0].Outputs[] | { (.OutputKey): .OutputValue }' | \
		jq -n 'reduce inputs as $$in (null; . + $$in)'
	@echo "DONE\n"

########################################################################
#		Common														   #
########################################################################
.PHONY: prereq
prereq: ## Install Required Tools via Brew
	@echo "Installing required dev tools"
	@brew install terraform \
				  tflint \
				  kubectl \
				  jq
	@echo "DONE\n"


# Colors -- https://www.linuxjournal.com/article/8603
BLACK   = "\\033[30m"
RED     = "\\033[31m"
GREEN   = "\\033[32m"
YELLOW  = "\\033[33m"
BLUE    = "\\033[34m"
MAGENTA = "\\033[35m"
CYAN    = "\\033[36m"
WHITE   = "\\033[37m"
END		= "\\033[0m"

help: Makefile ## Print this help
	@echo ""
	@printf "%-5s$(GREEN)%s-%s$(END) %s\n" "make" "PARAMS=" "\"-extra -opts\"" "<target>"
	@echo ""
	@printf "$(CYAN)%-10s: $(END) %s\n" "<target>" "<description>"
	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort |awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-10s: \033[0m %s\n", $$1, $$2}'
	@echo ""
	@echo ""
	@echo "The above specificiation of '$(GREEN)PARAMS=<value>$(END)' will pass"
	@echo "will pass additional params to the terraform tasks within a $(CYAN)<target>$(END)."
	@echo ""

.DEFAULT_GOAL := help