initial commit

Dockerfile

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+# =============================================================
+# Stage 1: Build rtlamr from source (Go)
+# =============================================================
+FROM golang:1.24-bookworm AS go-builder
+
+RUN go install github.com/bemasher/rtlamr@latest
+
+# =============================================================
+# Stage 2: Build rtl-sdr tools from source (C)
+# =============================================================
+FROM debian:bookworm-slim AS sdr-builder
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential cmake pkg-config git ca-certificates libusb-1.0-0-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN git clone https://github.com/osmocom/rtl-sdr.git /tmp/rtl-sdr \
+    && cd /tmp/rtl-sdr \
+    && mkdir build && cd build \
+    && cmake .. -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON \
+    && make -j"$(nproc)" \
+    && make install
+
+# =============================================================
+# Stage 3: Python runtime
+# =============================================================
+FROM python:3.13-slim-bookworm
+
+LABEL maintainer="HAMeter"
+LABEL description="SDR utility meter reader for Home Assistant"
+
+# Runtime dependency for rtl-sdr
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libusb-1.0-0 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy compiled binaries from builder stages
+COPY --from=go-builder /go/bin/rtlamr /usr/local/bin/rtlamr
+COPY --from=sdr-builder /usr/local/bin/rtl_tcp /usr/local/bin/rtl_tcp
+COPY --from=sdr-builder /usr/local/lib/librtlsdr* /usr/local/lib/
+RUN ldconfig
+
+# Install Python dependencies
+COPY requirements.txt /app/requirements.txt
+RUN pip install --no-cache-dir -r /app/requirements.txt
+
+# Copy application code
+COPY hameter/ /app/hameter/
+
+WORKDIR /app
+
+# Web UI port
+EXPOSE 9090
+
+# Persistent config storage
+VOLUME /data
+
+# Docker sends SIGTERM on stop; we handle it gracefully
+STOPSIGNAL SIGTERM
+
+ENTRYPOINT ["python", "-m", "hameter"]