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crystal

build a statically linked program

since musl-libc is a better option to build a statically linked binary, use Docker or Podmn to build your binary

podman run --rm -it -v $(pwd):/workspace -w /workspace crystallang/crystal:latest-alpine crystal build src/teste.cr --release --no-debug --progress --static

the same, but as Dockerfile

FROM crystallang/crystal:latest-alpine as builder
WORKDIR /src
COPY . .
RUN crystal build src/teste.cr --release --no-debug --progress --static

FROM scratch
COPY --from=builder /src/teste /teste
ENTRYPOINT ["/teste"]

create the image using

podman build -t image_name .