Dockerfile.alpine

FROM alpine:3.21 AS builder

# Install packages
RUN apk add --no-cache \
  libusb-dev \
    git cmake pkgconf \
    make gcc g++

# Get driver repository
RUN git clone https://github.com/osmocom/rtl-sdr /workspace

# Compile drivers
RUN cd /workspace && \
        mkdir build && \
        cd build && \
        cmake ../ -DINSTALL_UDEV_RULES=ON && \
        make && \
        make install DESTDIR="$PWD/install"

FROM alpine:3.21

# Install packages
RUN apk add --no-cache \
  libusb-dev

# Copy built files from builder
COPY --from=builder /workspace/build/install/usr/local/bin/* /usr/local/bin/
COPY --from=builder /workspace/build/install/usr/local/include/* /usr/local/include/
COPY --from=builder /workspace/build/install/usr/local/lib/* /usr/local/lib/

# Ensure rtl_tcp is executable and Install the drivers
RUN chmod +x /usr/local/bin/rtl_tcp && \
  ldconfig /usr/local/bin/ && \
  ldconfig /usr/local/include/ && \
  ldconfig /usr/local/lib/

# Execute RTL server
ENTRYPOINT ["rtl_tcp", "-a", "0.0.0.0"]