Create Dockerfile

Dockerfile

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+# Use an official lightweight Alpine Linux image as the base
+FROM alpine:latest
+
+# Install dnsmasq and curl (for health checks)
+RUN apk --no-cache add dnsmasq curl
+
+# Create a directory for the dnsmasq configuration
+RUN mkdir -p /etc/dnsmasq.d
+
+# Create dnsmasq.conf inline
+RUN echo ' \
+# Redirect google.com to the IP of srsbkn.eu.org \n\
+address=www.lehrastudio.com/google.com  # Replace 192.0.2.1 with the IP of srsbkn.eu.org \n\
+# Log DNS queries (optional) \n\
+log-queries \n\
+# Set DNSmasq to listen on all interfaces \n\
+listen-address=0.0.0.0 \n\
+' > /etc/dnsmasq.conf
+
+# Expose port 7860 (the custom DNS port)
+EXPOSE 7860/udp
+
+# Command to start dnsmasq in the foreground and listen on port 7860
+CMD ["dnsmasq", "-k", "--port=7860"]