use alpine python base image

Dockerfile

@@ -1,4 +1,4 @@
-FROM debian:12.9-slim
+FROM python:3.13-alpine
 
 LABEL maintainer="Christopher Nethercott" \
     description="PiHole to InfluxDB data bridge"
@@ -7,14 +7,7 @@ WORKDIR /app
 
 # Install Python packages
 COPY requirements.txt .
-RUN apt-get update && \
-  apt-get install -y --no-install-recommends python3 python3-pip && \
-  python3 -m pip install -r requirements.txt --break-system-packages
-
-# Clean up
-RUN apt-get -q -y autoremove && \
-  apt-get -q -y clean && \
-  rm -rf /var/lib/apt/lists/*
+RUN pip install -r requirements.txt --break-system-packages
 
 # Final setup & execution
 COPY . /app