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# Builder image
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FROM --platform=$BUILDPLATFORM docker.io/golang:1.18.0-alpine AS build
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ARG VERSION=dev
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ENV GOPATH /go
WORKDIR /go/src/headscale
COPY go.mod go.sum /go/src/headscale/
RUN apk add gcc musl-dev
RUN go mod download
COPY . .
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ARG TARGETOS TARGETARCH
RUN CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH go build -o /go/bin/headscale -ldflags="-s -w -X github.com/juanfont/headscale/cmd/headscale/cli.Version=$VERSION" -a ./cmd/headscale
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RUN test -e /go/bin/headscale
# Production image
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FROM docker.io/alpine:latest
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COPY --from=build /go/bin/headscale /bin/headscale
ENV TZ UTC
EXPOSE 8080/tcp
CMD ["headscale"]
