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# Multi-architecture Dockerfile for mini-init
# Build with: docker buildx build --platform linux/amd64,linux/arm64 -t mini-init:latest -f docker/Dockerfile.multiarch .
# Buildx will build separate images for each platform automatically
# Builder stage
FROM --platform=$BUILDPLATFORM debian:stable-slim AS builder
ARG TARGETPLATFORM
ARG BUILDPLATFORM
RUN apt-get update && apt-get install -y --no-install-recommends \
nasm make binutils \
$(if [ "$TARGETPLATFORM" = "linux/arm64" ]; then echo "gcc-aarch64-linux-gnu binutils-aarch64-linux-gnu"; fi) && \
rm -rf /var/lib/apt/lists/*
WORKDIR /src
COPY . .
# Build for the target platform
RUN if [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
make build-arm64 && \
aarch64-linux-gnu-strip build/mini-init-arm64 && \
cp build/mini-init-arm64 /mini-init; \
else \
make && \
strip build/mini-init-amd64 && \
cp build/mini-init-amd64 /mini-init; \
fi
# Runtime stage
FROM scratch
COPY --from=builder /mini-init /mini-init
ENTRYPOINT ["/mini-init"]
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