DEV Community

Cover image for Prometheus-Grafana Using BlackBox exporter
Kannan
Kannan

Posted on

Prometheus-Grafana Using BlackBox exporter

#linux #devops #granafa

Here we are going to use Blackbox export on grafana Dashboard

  • Download the blackbox exporter 
wget https://github.com/prometheus/blackbox_exporter/releases/download/v0.24.0/blackbox_exporter-0.24.0.linux-amd64.tar.gz
Enter fullscreen mode Exit fullscreen mode
  • extract the package 
tar -xvf blackbox_exporter-0.24.0.linux-amd64.tar.gz
Enter fullscreen mode Exit fullscreen mode
  • enter into blackbox directory 
cd blackbox_exporter-0.24.0.linux-amd64
Enter fullscreen mode Exit fullscreen mode
  • create the monitor_website.yml file 
vim monitor_website.yml
Enter fullscreen mode Exit fullscreen mode 
modules: http_2xx_example: prober: http timeout: 5s http: valid_http_versions: ["HTTP/1.1", "HTTP/2.0"] valid_status_codes: [200] # Defaults to 2xx method: GET
Enter fullscreen mode Exit fullscreen mode
  • Create the service file for blackbox 
vim /etc/systemd/system/blackbox.service
Enter fullscreen mode Exit fullscreen mode 
[Unit] Description = Prometheus Server Documentation=https://prometheus.io/docs/introduction/overview/ After=network-online.target [Service] User=root Restart=on-failure ExecStart=/root/blackbox_exporter-0.24.0.linux-amd64/blackbox_exporter --config.file=/root/blackbox_exporter-0.24.0.linux-amd64/monitor_website.yml [Install] WantedBy=multi-user.target
Enter fullscreen mode Exit fullscreen mode
  • Reload,start,enable and find the status of the balckbox service 
systemctl daemon-reload systemctl start blackbox systemctl enable blackbox systemctl status blackbox
Enter fullscreen mode Exit fullscreen mode
  • At prometheus server creating the scrape config file 
vim /etc/prometheus/prometheus.yml
Enter fullscreen mode Exit fullscreen mode 
- job_name: 'blackbox' metrics_path: /probe params: module: [http_2xx_example] # Look for a HTTP 200 response. static_configs: - targets: - http://prometheus.io # Target to probe with http. - https://prometheus.io # Target to probe with https. - http://kaniyam.com - http://freetamilebooks.com relabel_configs: - source_labels: [__address__] target_label: __param_target - source_labels: [__param_target] target_label: instance - target_label: __address__ replacement: 192.168.122.138:9115
Enter fullscreen mode Exit fullscreen mode
  • Restart the services 
systemctl restart prometheus systemctl restart grafana-server
Enter fullscreen mode Exit fullscreen mode

Image description

  • In Grafana Dashboard Create a query and add metrics 
probe_http_status_code
Enter fullscreen mode Exit fullscreen mode 
probe_http_ssl
Enter fullscreen mode Exit fullscreen mode

Image description

  • Add > Virtulization >select tables >set value mappings and set colour >rename the panel.

  • Below the metric "option" set the type as "Table", "instant"
    Select "Transform data" and modify the name as your choice.

Image description

Top comments (0)