go-clean-template

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# Step 1: Modules caching
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FROM golang:1.17.1-alpine3.14 as modules
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COPY go.mod go.sum /modules/
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WORKDIR /modules
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RUN go mod download
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# Step 2: Builder
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FROM golang:1.17.1-alpine3.14 as builder
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COPY --from=modules /go/pkg /go/pkg
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COPY . /app
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WORKDIR /app
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RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
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    go build -tags migrate -o /bin/app ./cmd/app
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# Step 3: Final
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FROM scratch
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COPY --from=builder /app/config /config
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COPY --from=builder /app/migrations /migrations
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COPY --from=builder /bin/app /app
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COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
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CMD ["/app"]