Makefile

compile: clean
	#   -m / --multi <dir>      Write multiple files to the directory, list files on stdout
	jsonnet $(JSONNET_ARGS) -m $(BUILD_DIR) $(TF_FILE)

show: compile
	jsonnet $(JSONNET_ARGS) $(TF_FILE)

clean:
	rm -f $(BUILD_DIR)/*.tf.json
	rm -f $(BUILD_DIR)/*.tfplan

init:
	cd $(BUILD_DIR) && \
		terraform init

plan: # requires that compile was previously run
	cd $(BUILD_DIR) && \
		terraform plan -out $(TF_PLAN_FILE) $(TF_ARGS) .

apply:
	cd $(BUILD_DIR) && \
		terraform show $(TF_PLAN_FILE) && \
		terraform apply $(TF_PLAN_FILE)

terraform-ci.yml

# infra {{{

.infra: &infra
  variables:
    PROJECT: "${INFRA_PROJECT}"
  cache:
    key: "${CI_BUILD_REF_NAME}_${INFRA_PROJECT}"
    paths:
      - "project/${INFRA_PROJECT}/build"

# Compile jsonnet for `plan`
infra_compile:
  <<: *infra
  stage: compile
  image: $JSONNET_DOCKER_IMAGE
  script:
    - make clean && make compile

# Create a plan of changes for `apply`
infra_terraform_plan:
  <<: *infra
  stage: plan
  image: $TERRAFORM_DOCKER_IMAGE
  script:
    - apk -U add make
    - make init && make plan

# Apply the plan generated by the previous step
infra_terraform_apply:
  <<: *infra
  stage: apply
  only:
    - master
  when: manual
  environment:
    name: infra
    url: $INFRA_URL
  image: $TERRAFORM_DOCKER_IMAGE
  script:
    - apk -U add make
    - make init
    - make apply

# }}}