Dockerfile

# Build Stage
FROM golang:1.21-alpine AS builder

WORKDIR /app

# Copy the server and cli source code
COPY main.go go.mod ./
COPY cli/ cli/

# Create directory to store precompiled binaries
RUN mkdir -p bin

# Cross-compile CLI for various target OS and architectures
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -o bin/linux-amd64 cli/main.go
RUN CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags="-s -w" -o bin/linux-arm64 cli/main.go
RUN CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags="-s -w" -o bin/windows-amd64 cli/main.go
RUN CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags="-s -w" -o bin/darwin-amd64 cli/main.go
RUN CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags="-s -w" -o bin/darwin-arm64 cli/main.go

# Build the main server binary statically linked
RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o server main.go

# Production Stage
FROM scratch

WORKDIR /app

# Copy the server binary and precompiled CLI binaries
COPY --from=builder /app/server /app/server
COPY --from=builder /app/bin /app/bin

# Environment variables (Can be overridden in HF Spaces configuration)
ENV DATA_DIR=/data
ENV BIN_DIR=/app/bin
ENV PORT=7860

# Expose default HF Spaces port
EXPOSE 7860

# Command to run backend
CMD ["/app/server"]