terraform image

terraform/Dockerfile

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+FROM alpine:3.16
+
+RUN apk add --no-cache terraform
+
+ENTRYPOINT ["terraform"]

terraform/Makefile

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+IMG_NAME=terraform
+REGISTRY=registry.monotremata.xyz
+IMG=$(REGISTRY)/$(IMG_NAME)
+PLATFORMS=linux/amd64,linux/arm64
+
+.PHONY: push buildx clean
+
+out/image-id: Dockerfile
+	mkdir -p $(@D)
+	docker build -t $(IMG) .
+	echo $(IMG) > $@
+
+push: out/image-id
+	docker image push $(IMG)
+
+buildx: Dockerfile
+	docker buildx build \
+		--platform $(PLATFORMS) \
+		--tag $(IMG) \
+		--push \
+		.
+
+clean:
+	rm -rf out