First commit

Dockerfile

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+FROM debian:bullseye-slim
+
+# Install NSD and required tools
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends nsd tzdata && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# Create necessary directories
+RUN mkdir -p /var/lib/nsd /var/run/nsd /etc/nsd/conf.d
+
+# Copy entrypoint script
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+# Volume for configuration and data
+VOLUME ["/etc/nsd", "/var/lib/nsd"]
+
+# Expose standard NSD port
+EXPOSE 53/tcp 53/udp
+
+# Set start command
+ENTRYPOINT ["/entrypoint.sh"]