Makefile to run Terraform

gistfile1.txt

# ------------------------------------------------------------------------------
# Runs Terraform inside a Docker container.
#
# The primary purpose it to ensure everyone uses the same Terraform version.
# A typical workflow would be this:
#   $ make clean
#   $ make init
#   $ make plan
#   $ make apply
# ------------------------------------------------------------------------------

REPOS_DIR := $(shell dirname $(shell dirname $(shell dirname $(shell dirname $(shell pwd)))))
PROJECT_NAME:= $(shell basename $(shell dirname $(shell dirname $(shell pwd))))
PROJECT_DIR:= $(shell dirname $(shell dirname $(shell pwd)))
RESOURCE_NAME:= $(shell basename $(shell dirname $(shell dirname $(shell pwd))))
ENV:= $(shell basename $(shell pwd))
ENV_SHORT:= $(shell basename $(shell pwd) | cut -d '-' -f 1)

# Docker image to use to run terraform, bootstrap and shutdown scripts
TERRAFORM_VERSION="0.11.11"

TERRAFORM_BINARY=docker run --rm -ti \
	-e TF_LOG \
	-v $(PROJECT_DIR):/go/ \
	--workdir /go/envs/$(ENV)/ hashicorp/terraform:${TERRAFORM_VERSION}

TERRAFORM_RM=docker run --rm -ti \
	-e TF_LOG \
	-v $(PROJECT_DIR):/go/ \
	--entrypoint="/bin/rm" \
	--workdir /go/envs/$(ENV)/ hashicorp/terraform:${TERRAFORM_VERSION}


test:
	@echo ${PROJECT_NAME}
	@echo ${PROJECT_DIR}
	@echo ${RESOURCE_NAME}
	@echo ${ENV}
	@echo $(TERRAFORM_BINARY)
	@echo $(ENV_SHORT)
	@echo key=$(PROJECT_NAME)/$(ENV)/$(PROJECT_NAME)-$(ENV).tfstate
	@echo $(shell ls)

help:
	@echo "Available commands:"
	@echo "apply ; destroy ; init ; output ; plan ; refresh ; show ; output ; validate ; remove-plan ; clean"
	@echo
	@echo "A typical workflow would be this:"
	@echo "make init"
	@echo "make plan"
	@echo "make apply"

# Remove the Terraform plan (if it exists).
remove-plan:
	$(TERRAFORM_RM) -fv  terraform.tfplan

# Remove the <.terraform/> folder and plan, should they exist.
clean: remove-plan
	$(TERRAFORM_RM) -rfv .terraform/*

# Initialise Terraform (it is idempotent - run at any time).
init: clean
	$(TERRAFORM_BINARY) init \
	-backend-config="bucket=<BUCKET_NAME_HERE>" \
	-backend-config="key=<KEY_STATE_FILE>" \
	-backend-config=terraform.remote

# Create a plan and save it.
plan: remove-plan
	$(TERRAFORM_BINARY) validate
	$(TERRAFORM_BINARY) plan -out terraform.tfplan -parallelism=100

# Apply the most recent plan created during the "plan" stage (see above).
apply:
	$(TERRAFORM_BINARY) apply terraform.tfplan
	rm -rf terraform.tfplan

output:
	$(TERRAFORM_BINARY) output

refresh:
	$(TERRAFORM_BINARY) refresh

validate:
	$(TERRAFORM_BINARY) validate

show:
	$(TERRAFORM_BINARY) show

destroy:
	$(TERRAFORM_BINARY) destroy

.PHONY: apply destroy init output plan refresh show output validate remove-plan clean