multistage docker build

.dockerignore

@@ -0,0 +1 @@
+goaws

Dockerfile

@@ -1,7 +1,19 @@
+FROM golang:alpine as builder
+
+WORKDIR /go/src/github.com/p4tin/goaws
+
+RUN apk add --update --repository https://dl-3.alpinelinux.org/alpine/edge/testing/ dep git
+
+COPY Gopkg.lock Gopkg.toml app ./
+RUN dep ensure
+COPY . .
+
+RUN go build -o goaws_linux_amd64 app/cmd/goaws.go
+
 FROM alpine
 
 EXPOSE 4100
 
-COPY ./goaws_linux_amd64 /
+COPY --from=builder /go/src/github.com/p4tin/goaws/goaws_linux_amd64 /
 COPY ./app/conf/goaws.yaml /conf/
 ENTRYPOINT ["/goaws_linux_amd64"]