# Multi-architecture Docker image from pre-built static musl binaries
# No Rust compilation — packages binaries produced by the CI build job (cross).
#
# Usage (CI):
#   docker buildx build --platform linux/amd64,linux/arm64 \
#     -f Containerfile.package --target minimal .
#
# Build context must contain:
#   binaries/amd64/sks5   (static musl x86_64 binary)
#   binaries/arm64/sks5   (static musl aarch64 binary)
#
# For local builds that compile from source, use Containerfile or Containerfile.cross instead.
#
# Targets:
#   minimal (default) — scratch-based, ~5 MB
#   alpine            — Alpine-based, ~12 MB, has shell for debugging

# --- CA certs (no QEMU needed — runs on build platform) ---
FROM --platform=$BUILDPLATFORM alpine:3.21 AS certs
RUN apk add --no-cache ca-certificates

# --- Target: minimal (scratch) — DEFAULT ---
FROM scratch AS minimal

ARG TARGETARCH

LABEL org.opencontainers.image.title="sks5" \
      org.opencontainers.image.description="Lightweight SSH server with SOCKS5 proxy" \
      org.opencontainers.image.source="https://github.com/galti3r/sks5" \
      org.opencontainers.image.licenses="MIT"

COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
COPY binaries/${TARGETARCH}/sks5 /sks5

EXPOSE 2222 1080 9090 9091

USER 65534

ENTRYPOINT ["/sks5"]
CMD ["--config", "/etc/sks5/config.toml"]

# --- Target: alpine ---
FROM alpine:3.21 AS alpine

ARG TARGETARCH

LABEL org.opencontainers.image.title="sks5" \
      org.opencontainers.image.description="Lightweight SSH server with SOCKS5 proxy" \
      org.opencontainers.image.source="https://github.com/galti3r/sks5" \
      org.opencontainers.image.licenses="MIT"

RUN apk add --no-cache ca-certificates && \
    adduser -D -u 1000 sks5 && \
    mkdir -p /etc/sks5 /var/log/sks5 && \
    chown sks5:sks5 /etc/sks5 /var/log/sks5

COPY binaries/${TARGETARCH}/sks5 /usr/local/bin/sks5

USER sks5
WORKDIR /etc/sks5

EXPOSE 2222 1080 9090 9091

VOLUME ["/etc/sks5"]

STOPSIGNAL SIGTERM

HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
    CMD ["sks5", "health-check", "--addr", "127.0.0.1:2222", "--timeout", "3"]

ENTRYPOINT ["sks5"]
CMD ["--config", "/etc/sks5/config.toml"]
