First go at Docker builds

Dockerfile

@@ -0,0 +1,8 @@
+ARG REPO=library
+FROM ${REPO}/busybox:latest
+WORKDIR /root/
+
+ARG ARCH=amd64
+COPY ./minitor-go ./minitor
+
+ENTRYPOINT [ "./minitor" ]

Dockerfile.multi-stage

@@ -0,0 +1,23 @@
+ARG REPO=library
+FROM golang:1.12-alpine AS builder
+
+RUN apk add --no-cache git
+
+RUN mkdir /app
+WORKDIR /app
+
+COPY ./go.mod ./go.sum /app/
+RUN go mod download
+
+COPY ./*.go /app/
+
+ARG ARCH=amd64
+ARG VERSION=dev
+ENV CGO_ENABLED=0 GOOS=linux GOARCH=${ARCH}
+RUN go build -ldflags "-X main.version=${VERSION}" -a -installsuffix nocgo -o minitor .
+
+FROM ${REPO}/busybox:latest
+WORKDIR /root/
+COPY --from=builder /app/minitor .
+
+ENTRYPOINT [ "./minitor" ]

Makefile

@@ -1,3 +1,5 @@
+DOCKER_TAG ?= minitor-go-${USER}
+
 .PHONY: test
 default: test
 
@@ -27,3 +29,11 @@ test:
 clean:
 	rm -f ./minitor-go
 	rm -f ./coverage.out
+
+.PHONY: docker-build
+docker-build:
+	docker build -f ./Dockerfile.multi-stage -t $(DOCKER_TAG) .
+
+.PHONY: docker-run
+docker-run: docker-build
+	docker run --rm -v $(shell pwd)/config.yml:/root/config.yml $(DOCKER_TAG)