Alert Management

Overview

HostSpace Kubernetes Engine (HKE) provides robust alert management capabilities to ensure the health and availability of your Kubernetes clusters. By setting up alerts, DevOps engineers and platform administrators can proactively monitor cluster performance and respond to critical events promptly.

Key Features/Components

• Alert Rules: Define conditions based on metrics or events that trigger alerts.
• Notification Channels: Configure where alerts are sent (e.g., email, Slack, PagerDuty).
• Alerting Policies: Specify how alerts are handled (e.g., severity levels, escalation).

Step-by-step Instructions or Configuration Details

1. Create Alert Rule:

   apiVersion: monitoring.hostspace.com/v1
   kind: AlertRule
   metadata:
     name: high-cpu-usage
   spec:
     alert: "High CPU Usage"
     expr: node_cpu_seconds_total / node_cpu_seconds_total{mode="idle"} * 100 > 80
     severity: critical

2. Configure Notification Channel:

   kubectl create notification-channel email-channel --email=devops@example.com

3. Define Alerting Policy:

   apiVersion: monitoring.hostspace.com/v1
   kind: AlertingPolicy
   metadata:
     name: critical-alert-policy
   spec:
     severity: critical
     notificationChannels:
       - email-channel

Best Practices and Recommendations

• Define Clear Alerting Criteria: Ensure alert rules have meaningful thresholds to avoid unnecessary alerts.
• Test Alerts Regularly: Validate alerting configurations to guarantee timely notifications.
• Implement Escalation Paths: Set up escalation policies for critical alerts to ensure proper response.

Related Commands or API References

• kubectl create notification-channel
• kubectl get alertrules
• kubectl describe alertingpolicy

Common Pitfalls and Solutions

This documentation provides a comprehensive guide to effectively manage alerts in HostSpace Kubernetes Engine (HKE).