Terraform makefiles (bmake, gmake)

GNUmakefile

TF_MODULES := $(shell find . -type f -iname '*.tf')

.PHONY: all plan apply

all: plan

plan: tf.plan

apply: tf.plan
        terraform apply $<

tf.plan: ${TF_MODULES}
        terraform plan -out $@

makefile

TF_MODULES != find . -type f -iname '*.tf'

.PHONY: all plan apply

all: plan

plan: tf.plan

apply: tf.plan
        terraform apply ${.ALLSRC}

tf.plan: ${TF_MODULES}
        terraform plan -out ${.TARGET}