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look upon my works and despair
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| # find all files in vars/ | |
| vars = $(wildcard vars/*.tfvars) | |
| # extract env name from vars | |
| envs := $(vars:vars/%.tfvars=%) | |
| # calculate datadir from env name | |
| datadirs := $(envs:%=.terraform/%) | |
| # calculate plan filename from env name | |
| plans := $(envs:%=.terraform/%.plan) | |
| # tf files in module, for recalculating plan on module changes | |
| module := $(wildcard *.tf) | |
| # generate a plan file in .terraform | |
| plan: init $(plans) | |
| # apply plans in .terraform | |
| apply: plan $(envs) | |
| # initialize terraform, setting up backend and foreign modules | |
| init: $(datadirs) | |
| # remove plans | |
| clean: | |
| @rm .terraform/*.plan | |
| # remove plans and initialization data | |
| clean-all: | |
| @rm -rf .terraform | |
| .PHONY: init plan apply clean clean-all | |
| # generate a plan file, depends on env vars and module files | |
| .terraform/%.plan: vars/%.tfvars $(module) | |
| @TF_DATA_DIR=.terraform/$* terraform plan -input=false -var-file=vars/$*.tfvars -out=$@ | |
| # initialize terraform in data dir per env | |
| .terraform/%: backends/%.tfvars | |
| @TF_DATA_DIR=$@ terraform init -backend-config=$< | |
| # apply plans | |
| %: .terraform/%.plan | |
| @TF_DATA_DIR=.terraform/$* terraform apply .terraform/$*.plan |
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