Makefile for DevOps task automation

                  # Project Makefile
.DEFAULT_GOAL := help

# Variables
APP_NAME := web-app
VERSION := $(shell git describe --tags --always --dirty)
COMMIT := $(shell git rev-parse --short HEAD)
BUILD_TIME := $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
REGISTRY := registry.example.com
IMAGE := $(REGISTRY)/$(APP_NAME)

# Environment (override with: make deploy ENV=production)
ENV ?= staging
NAMESPACE ?= $(ENV)
DOCKER_COMPOSE := docker compose

.PHONY: help
help: ## Show this help message
	@echo "Usage: make [target]"
	@echo ""
	@echo "Targets:"
	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | 		awk 'BEGIN {FS = ":.*?## "}; {printf "  \033[36m%-20s\033[0m %s\n", $$1, $$2}'

# === Development ===

.PHONY: dev
dev: ## Start development environment
	$(DOCKER_COMPOSE) up -d
	@echo "Development environment running at http://localhost:3000"

.PHONY: dev-down
dev-down: ## Stop development environment
	$(DOCKER_COMPOSE) down

.PHONY: dev-logs
dev-logs: ## Follow development logs
	$(DOCKER_COMPOSE) logs -f app

.PHONY: install
install: ## Install dependencies
	npm ci

.PHONY: dev-db
dev-db: ## Open database shell
	$(DOCKER_COMPOSE) exec db psql -U postgres myapp

# === Testing ===

.PHONY: test
test: ## Run tests
	npm test

.PHONY: test-watch
test-watch: ## Run tests in watch mode
	npm test -- --watch

.PHONY: test-coverage
test-coverage: ## Run tests with coverage
	npm test -- --coverage
	@echo "Coverage report: coverage/lcov-report/index.html"

.PHONY: lint
lint: ## Run linter
	npm run lint

.PHONY: format
format: ## Format code
	npm run format

.PHONY: check
check: lint test ## Run all checks (lint + test)

# === Building ===

.PHONY: build
build: ## Build Docker image
	docker build 		--build-arg VERSION=$(VERSION) 		--build-arg COMMIT=$(COMMIT) 		--build-arg BUILD_TIME=$(BUILD_TIME) 		-t $(IMAGE):$(VERSION) 		-t $(IMAGE):latest 		.

.PHONY: push
push: build ## Build and push Docker image
	docker push $(IMAGE):$(VERSION)
	docker push $(IMAGE):latest

# === Deployment ===

.PHONY: deploy
deploy: check push ## Full deploy pipeline (check, build, push, deploy)
	@echo "Deploying $(VERSION) to $(ENV)..."
	kubectl set image deployment/$(APP_NAME) 		$(APP_NAME)=$(IMAGE):$(VERSION) 		-n $(NAMESPACE)
	kubectl rollout status deployment/$(APP_NAME) -n $(NAMESPACE)
	@echo "Deploy complete!"

.PHONY: rollback
rollback: ## Rollback to previous version
	kubectl rollout undo deployment/$(APP_NAME) -n $(NAMESPACE)
	kubectl rollout status deployment/$(APP_NAME) -n $(NAMESPACE)

# === Infrastructure ===

.PHONY: tf-init
tf-init: ## Initialize Terraform
	cd terraform && terraform init

.PHONY: tf-plan
tf-plan: ## Plan Terraform changes
	cd terraform && terraform plan -var-file=$(ENV).tfvars -out=tfplan

.PHONY: tf-apply
tf-apply: ## Apply Terraform changes
	cd terraform && terraform apply tfplan

# === Utilities ===

.PHONY: clean
clean: ## Clean build artifacts
	rm -rf dist/ coverage/ node_modules/.cache
	docker image prune -f

.PHONY: info
info: ## Show project info
	@echo "App:     $(APP_NAME)"
	@echo "Version: $(VERSION)"
	@echo "Commit:  $(COMMIT)"
	@echo "Image:   $(IMAGE):$(VERSION)"
	@echo "Env:     $(ENV)"