Which alerts should I configure for DevOps culture with Grafana?

In a DevOps culture, it is essential to monitor key metrics and set up alerts that enhance operational efficiency and facilitate rapid response to issues. Using Grafana, you can configure several types of alerts to ensure that your systems are performing optimally.

Essential Alerts to Configure:

• Application Performance Monitoring: Alerts on response times, error rates, and throughput.
• Infrastructure Monitoring: Alerts for CPU usage, memory consumption, disk I/O, and network latency.
• Deployment Monitoring: Alerts for failed deployments, rollback events, and performance degradation post-deployment.
• Service Availability: Alerts on service uptime and downtime, including checks on RESTful APIs and critical endpoints.
• Security Monitoring: Alerts for unusual user activity, failed login attempts, and security vulnerabilities.

Example Grafana Alert Configuration:

        {
            "alert": {
                "name": "High CPU Usage",
                "expr": "avg by(instance)(rate(node_cpu_seconds_total[5m])) > 0.85",
                "for": "5m",
                "labels": {
                    "severity": "critical"
                },
                "annotations": {
                    "summary": "Instance {{ $labels.instance }} is experiencing high CPU usage",
                    "description": "CPU usage is over 85% for the last 5 minutes."
                }
            }
        }