Execute a command that gives the hard disk memory used on the host machine

• System Administrators: Ensure efficient disk space management and avoid downtime due to full disks.
• DevOps Engineers: Automate monitoring of disk usage as part of CI/CD pipelines.
• IT Support Teams: Receive timely alerts about potential disk space issues to assist users effectively.
• Businesses: Maintain operational efficiency by preventing server outages caused by insufficient disk space.

This workflow automatically monitors the hard disk usage on the host machine and alerts users when the disk space exceeds 80%. This proactive approach helps prevent potential issues related to insufficient disk space, ensuring smooth operations and minimizing downtime.

1. Cron Scheduler: This node triggers the workflow at specified times, specifically at 9 AM and 4 PM daily.
2. Execute Command: Runs a shell command to check the current disk usage percentage. The command used is df -k / | tail -1 | awk '{print $5}', which retrieves the percentage of disk space used.
3. IF Condition: Evaluates the output of the command. If the disk usage is greater than 80%, it proceeds to the next step; otherwise, it ends without action.
4. Twilio Notification: If the disk usage exceeds 80%, a message is sent via Twilio to a specified phone number, alerting the user with the message: "Your hard disk space is filling up fast! Your hard disk is [current usage] full."
5. No Operation (NoOp): This serves as a placeholder for any actions that could be taken if the disk usage is under control.