Terraform Version Manager Makefile

Makefile

TERRAFORM_VERSION := 0.11.7
TERRAFORM_LOCATION := .tf
TERRAFORM_BINARY := $(CURDIR)/.tf/terraform
PLATFORM := $(shell uname | tr '[:upper:]' '[:lower:]')
# Download the correct terraform version
get-terraform:
  @curl -o tf_tmp.zip https://releases.hashicorp.com/terraform/$(TERRAFORM_VERSION)/terraform_$(TERRAFORM_VERSION)_$(PLATFORM)_amd64.zip
  @unzip -o -d .tf tf_tmp.zip
  @rm tf_tmp.zip
# Check if Terraform binary exists, otherwise download it
check-terraform-exists:
  @[ ! -f $(TERRAFORM_BINARY) ] && make -s get-terraform || true
# Default to QA env
ENV := qa

# Check the terraform version and download if it isn't up to date
tf-version: | check-terraform-exists
ifneq ($(shell $(TERRAFORM_BINARY) version | head -n 1 | cut -d " " -f2 | tr -d v), $(TERRAFORM_VERSION))
  @echo "Terraform version is out of date. Downloading correct version..."
  @make -s get-terraform
  @echo "Terraform binary updated"
else
  @echo "Terraform version is up to date..."
endif

# Terraform init to a specific environment (make init ENV=qa)
init: | tf-version
  @cd terraform/$(ENV) && $(TERRAFORM_BINARY) init
# Terraform plan to a specific environment (make plan ENV=qa)
plan: | tf-version
  @cd terraform/$(ENV) && $(TERRAFORM_BINARY) plan

# Apply terraform to a specific environment (make apply ENV=qa)
apply: | tf-version
  @cd terraform/$(ENV) && $(TERRAFORM_BINARY) apply