Multi stage docker build

Dockerfile

@@ -1,5 +1,45 @@
+FROM golang:1.9-alpine as build
+
+RUN apk add --no-cache git
+
+WORKDIR /go/src/github.com/streamlist/streamlist
+
+ARG STREAMLIST_VERSION=unknown
+
+ENV GODEBUG="netdns=go http2server=0"
+ENV GOPATH="/go"
+
+RUN go get \
+    github.com/jteeuwen/go-bindata/... \
+    github.com/PuerkitoBio/goquery \
+    github.com/armon/circbuf \
+    github.com/disintegration/imaging \
+    github.com/dustin/go-humanize \
+    github.com/julienschmidt/httprouter \
+    github.com/eduncan911/podcast \
+    github.com/rylio/ytdl \
+    go.uber.org/zap \
+    golang.org/x/crypto/acme/autocert
+
+COPY *.go ./
+COPY internal ./internal
+COPY static ./static
+COPY templates ./templates
+
+RUN go fmt && \
+    go vet --all && \
+    go-bindata --pkg main static/... templates/...
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -v --compiler gc --ldflags "-extldflags -static -s -w -X main.version=${STREAMLIST_VERSION}" -o /usr/bin/streamlist-linux-amd64
+
+#RUN CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=7 \
+#    go build -v --compiler gc --ldflags "-extldflags -static -s -w -X main.version=${STREAMLIST_VERSION}" -o /usr/bin/streamlist-linux-armv7
+
+#RUN CGO_ENABLED=0 GOOS=linux GOARCH=arm64 \
+#    go build -v --compiler gc --ldflags "-extldflags -static -s -w -X main.version=${STREAMLIST_VERSION}" -o /usr/bin/streamlist-linux-arm64
+
 FROM alpine:latest
-MAINTAINER Streamlist <github@streamlist.cloud>
 
 RUN apk --no-cache add \
     curl \
@@ -8,6 +48,6 @@ RUN apk --no-cache add \
 
 WORKDIR /data
 
-COPY streamlist-linux-amd64 /usr/bin/streamlist
+COPY --from=build /usr/bin/streamlist-linux-amd64 /usr/bin/streamlist
 
 ENTRYPOINT ["/usr/bin/streamlist"]