Update Dockerfile

Dockerfile

@@ -1,14 +1,9 @@
 FROM golang:1.9-alpine as build
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 RUN apk add --no-cache git
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 WORKDIR /go/src/github.com/streamlist/streamlist
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 ARG STREAMLIST_VERSION=unknown
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 ENV GODEBUG="netdns=go http2server=0"
 ENV GOPATH="/go"
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 RUN go get \
     github.com/jteeuwen/go-bindata/... \
     github.com/PuerkitoBio/goquery \
@@ -20,34 +15,26 @@ RUN go get \
     github.com/rylio/ytdl \
     go.uber.org/zap \
     golang.org/x/crypto/acme/autocert
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 COPY *.go ./
 COPY internal ./internal
 COPY static ./static
 COPY templates ./templates
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 RUN go fmt && \
     go vet --all && \
     go-bindata --pkg main static/... templates/...
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 RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
     go build -v --compiler gc --ldflags "-extldflags -static -s -w -X main.version=${STREAMLIST_VERSION}" -o /usr/bin/streamlist-linux-amd64
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 #RUN CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=7 \
 #    go build -v --compiler gc --ldflags "-extldflags -static -s -w -X main.version=${STREAMLIST_VERSION}" -o /usr/bin/streamlist-linux-armv7
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 #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
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 RUN apk --no-cache add \
     curl \
     ffmpeg \
     wget
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 WORKDIR /data
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 COPY --from=build /usr/bin/streamlist-linux-amd64 /usr/bin/streamlist
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+EXPOSE 80
 ENTRYPOINT ["/usr/bin/streamlist"]