Πόσο συχνά χρησιμοποιούσατε το Grafana;

On a daily basis, for monitoring and visualizing metrics from various sources such as Prometheus, Loki, InfluxDB, and Elasticsearch.

Key usage scenarios:

• Performance monitoring. Creating dashboards to track CPU load, memory consumption, network traffic, latencies, and other parameters of servers, containers, and services.
• Logging. Visualizing and analyzing logs from Loki to identify errors, problematic patterns, and bottlenecks.
• Alerting. Setting up alert rules based on metric threshold values for prompt incident response.
• Incident analysis. Using dashboards to quickly determine the root cause of failures and issues.
• Capacity planning. Monitoring resource consumption trends to forecast future needs.
• Business metrics. Visualizing metrics specific to the application or business.

I have worked with various panel types: Graph, Stat, Table, Heatmap, Geomap, Native Histogram. I actively used variables to dynamically change data on dashboards. I configured data sources and service accounts. I implemented dashboards through Provisioning for version control and automatic deployment.

Example of Provisioning configuration:

# data sources
apiVersion: 1

datasources:
- name: Prometheus
  type: prometheus
  access: proxy
  url: http://prometheus:9090
  isDefault: true
  version: 1
  editable: false

# dashboards
apiVersion: 1

providers:
  - name: 'System Dashboards'
    orgId: 1
    folder: ''
    type: file
    disableDeletion: true
    editable: true
    options:
      path: /etc/grafana/provisioning/dashboards

Example of a query in Prometheus used in Grafana:

# Number of HTTP requests per second
sum(rate(http_requests_total{job="web"}[5m]))

Example of a Loki query:

# Search for errors in the logs of the "backend" service
{job="backend", level="error"}

My experience includes working with Grafana in many projects, from small services to complex distributed systems. I have integrated Grafana with various monitoring and orchestration tools such as Kubernetes, Prometheus Operator, Loki Operator.