Dockerfile for cross-compiling a Rust project for ARM64. I use this to build ARM64 containers for my Raspberry Pi 4 on an x86 machine

Dockerfile

FROM rust:1.74-slim-buster as builder

RUN rustup target add aarch64-unknown-linux-gnu

RUN apt-get update && \
	apt-get install -y g++-aarch64-linux-gnu libc6-dev-arm64-cross

ENV CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc

# Copy project into container
COPY . .

RUN cargo build --target aarch64-unknown-linux-gnu --release

# Final Stage
FROM arm64v8/debian:buster-slim

COPY --from=builder /target/aarch64-unknown-linux-gnu/release/<my-executable> /<my-executable>

# env_logger setting
ENV RUST_LOG=info

CMD ["/<my-executable>"]