dockron/Dockerfile.multi-stage

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ARG REPO=library
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FROM golang:1.22-alpine AS builder
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# hadolint ignore=DL3018
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RUN apk add --no-cache git && \
mkdir /app
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WORKDIR /app
COPY ./go.mod ./go.sum /app/
RUN go mod download
COPY ./main.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 dockron .
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FROM scratch
COPY --from=builder /app/dockron /
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ENTRYPOINT [ "/dockron" ]