This n8n workflow template is designed to help system administrators and DevOps professionals monitor key resource usage metrics - CPU, RAM, and Disk - on a VPS (Virtual Private Server). The workflow automatically checks these resources every 15 minutes and sends an email alert if any resource usage exceeds the 80% threshold. This proactive monitoring helps maintain optimal server performance and prevents resource-related downtimes.
# Who This Workflow Is For
- **System Administrators** managing Linux-based servers who need to ensure their systems are running smoothly without manual monitoring.
- **DevOps Professionals** who manage multiple environments and need automated tools to alert them to potential issues before they affect operations.
- **IT Support Teams** who require an easy way to keep tabs on server health across an organization's infrastructure.
# How It Works
1. **Schedule Trigger**: The workflow is triggered every 15 minutes by a Cron node.
2. **Resource Checks**: Separate SSH Command nodes are configured to execute specific commands that check the current usage of RAM, Disk, and CPU.
3. **Data Aggregation**: The results from each check are merged using a Merge node, which combines the data into a single payload for analysis.
4. **Threshold Analysis**: A Function node evaluates whether any resources' usage exceeds the predefined 80% threshold.
5. **Alerts**: If any metric exceeds the threshold, an email alert is sent through an Email node, ensuring that administrators can react promptly to potential issues.
# Setup Steps
1. **Configure SSH Nodes**: Update each SSH node with the appropriate credentials and target server details where the resource checks will be performed.
2. **Set Thresholds**: If different sensitivity levels are required, review and adjust the resource usage thresholds within the Function node.
3. **Email Configuration**: Enter the correct email addresses in the Email node for where alerts should be sent. Ensure that your email-sending credentials and server details are correctly configured.
Platform
n8n
Category
Development & IT
Price
Free
Creator
Hostinger
if
ssh
merge
emailSend
stickyNote
scheduleTrigger
How to import this workflow into n8n
1Purchase or download the workflow to get the n8n workflow JSON file.
2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
3Open each node marked with a credential warning and connect your own accounts and API keys.
4Run the workflow once manually to verify the data flow, then toggle it to Active.