intial commit

q5-mithal-monitor/Dockerfile

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+FROM nginx:alpine
+
+# Install bash, curl, openssl, coreutils (for date parsing), and cron
+RUN apk update && apk add bash curl openssl coreutils dcron
+
+# Clear the default Nginx welcome page first
+RUN rm -rf /usr/share/nginx/html/*
+
+# Setup workspace
+COPY dashboard.html /usr/share/nginx/html/index.html
+COPY monitor.sh /usr/local/bin/monitor.sh
+RUN chmod +x /usr/local/bin/monitor.sh
+
+RUN touch /usr/share/nginx/html/data.csv && \
+    chown -R nginx:nginx /usr/share/nginx/html && \
+    chmod -R 755 /usr/share/nginx/html
+    
+# Add cron job (runs every minute)
+RUN echo "* * * * * /usr/local/bin/monitor.sh" | crontab -
+
+# Custom entrypoint to start cron in background, then nginx in foreground
+RUN echo '#!/bin/sh' > /entrypoint.sh && \
+    echo 'crond -b -l 8' >> /entrypoint.sh && \
+    echo 'nginx -g "daemon off;"' >> /entrypoint.sh && \
+    chmod +x /entrypoint.sh
+
+EXPOSE 80
+CMD ["/entrypoint.sh"]