silence is golden

.gitignore

@@ -0,0 +1 @@
+build

Dockerfile

@@ -0,0 +1,8 @@
+FROM alpine:latest
+RUN apk --no-cache add ca-certificates
+
+WORKDIR /
+
+COPY build/lim /bin/
+
+CMD ["/bin/sh", "-c", "cat /dev/urandom | /bin/lim 16b | xxd"]

Dockerfile.build

@@ -0,0 +1,7 @@
+FROM golang:1.10.1
+
+WORKDIR /go/src/mcquay.me/lim
+
+COPY . .
+
+RUN CGO_ENABLED=0 GOOS=linux go build -o /usr/local/bin/lim .

Makefile

@@ -0,0 +1,19 @@
+GOFILES := $(shell find . -type f | grep go$$ )
+
+build/lim: build ${GOFILES}
+	@docker build -t smcquay/lim:build . -f Dockerfile.build > /dev/null
+	@docker create --name ext smcquay/lim:build > /dev/null
+	@docker cp ext:/usr/local/bin/lim build/ > /dev/null
+	@docker rm -f ext > /dev/null
+	@docker image rm smcquay/lim:build > /dev/null
+
+build:
+	@mkdir build
+
+.PHONY: docker-image
+docker-image: build/lim
+	@docker build --no-cache -t smcquay/lim:latest  . > /dev/null
+
+.PHONY: clean
+clean:
+	@rm -rf build