added official hacktheboo2024 writeups

htb/hacktheboo2024/web/web_unholy_union/Dockerfile

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+# Use the official Node.js image as a base
+FROM node:alpine
+
+RUN apk add --no-cache --update mariadb mariadb-client supervisor gcc musl-dev mariadb-connector-c-dev
+
+WORKDIR /app
+
+COPY src/ .
+COPY config/supervisord.conf /etc/supervisord.conf
+COPY --chown=root entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+RUN npm install express request mysql2
+# Expose port 3000
+EXPOSE 3000
+
+COPY flag.txt /flag.txt
+
+# Command to run the application
+ENTRYPOINT [ "/entrypoint.sh" ]