Automate Kubernetes CPU Spike Alerts from Prometheus to Slack

This workflow monitors Kubernetes pod CPU usage using Prometheus and sends real-time alerts to Slack when CPU consumption exceeds a specified threshold. It efficiently groups alerts by application name to enhance clarity and reduce noise.

n8n
Grace Kim

35 workflows

Designed for DevOps and SRE teams, this no-code workflow eliminates the need for Alertmanager by directly routing critical alerts into Slack. It polls Prometheus every 5 minutes, checks for CPU usage spikes, and sends structured alerts to a designated Slack channel. The workflow can be customized to monitor other metrics like memory or network usage.

$9.99
Last updated October 3, 2026
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How to import this workflow into n8n

  1. 1Purchase or download the workflow to get the n8n workflow JSON file.
  2. 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
  3. 3Open each node marked with a credential warning and connect your own accounts and API keys.
  4. 4Run the workflow once manually to verify the data flow, then toggle it to Active.

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