init

Dockerfile

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+FROM python:3.12-slim
+
+LABEL maintainer="Your Name <youremail@example.com>"
+LABEL description="Certbot with dns-standalone plugin for wildcard certificate generation"
+
+# Install certbot and the dns-standalone plugin
+RUN pip install --no-cache-dir certbot certbot-dns-standalone
+
+# Create directories for Let's Encrypt data
+RUN mkdir -p /etc/letsencrypt /var/lib/letsencrypt /var/log/letsencrypt
+
+# Copy the entrypoint script
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+# Expose DNS port (53) for both TCP and UDP
+EXPOSE 53/tcp
+EXPOSE 53/udp
+
+# Expose HTTP port for potential HTTP challenges
+EXPOSE 80
+
+# Volume for certificate storage
+VOLUME ["/etc/letsencrypt", "/var/lib/letsencrypt"]
+
+ENTRYPOINT ["/entrypoint.sh"]