Cara Membuat Monitoring Server menggunakan Node Exporter , Prometheus dan Grafana - DevOps

Berikut adalah cara membuat Monitoring Server menggunakan Node Exporter , Prometheus dan Grafana di Linux.

Install Node Exporter

• Link Download Node Exporter

1. buka link : https://prometheus.io/download#node_exporter
2. kemudian pilih yang berformat tar dan pilih sesuai sistem operasi , contohnya linux/amd64

   wget url

• Extract Node Exporter

  tar xvfz node_exporter-*.*-amd64.tar.gz

• Copy Node Exporter

  cd node_exporter
  cp node_exporter /usr/local/bin/

• Buat Service Node Exporter dengan cara menjalankan perintah dibawah ini.

  sudo nano /etc/systemd/system/node_exporter.service

  isi dengan code berikut :

  [Unit]
  Description=Node Exporter
  Wants=network-online.target
  After=network-online.target
  
  [Service]
  User=root
  Group=root
  Type=simple
  ExecStart=/usr/local/bin/node_exporter
  
  [Install]
  WantedBy=multi-user.target

• Jalankan Service Node Exporter

  sudo systemctl start node_exporter

• Aktifkan service node_exporter agar tetap jalan ketika di restart

  sudo systemctl enable node_exporter

• Buka Service menggunakan browser

1. ketik url dengan ip address server , contohnya http://localhost:9100
2. port node_exporter : 9100

• Tampilan node_exporter didalam browser

Install Prometheus ( docker )

• Pull docker image

  sudo docker pull prom/prometheus

• Jalankan docker container

  sudo docker run -d --name prometheus --restart always --net host /etc/localtime:/etc/localtime:ro prom/prometheus

• config prometheus.yml

  # my global config
  global:
    scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
    evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
    # scrape_timeout is set to the global default (10s).
  
  # Alertmanager configuration
  alerting:
    alertmanagers:
      - static_configs:
          - targets:
            # - alertmanager:9093
  
  # Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
  rule_files:
    # - "first_rules.yml"
    # - "second_rules.yml"
  
  # A scrape configuration containing exactly one endpoint to scrape:
  # Here it's Prometheus itself.
  scrape_configs:
    # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
    - job_name: "prometheus"
  
      # metrics_path defaults to '/metrics'
      # scheme defaults to 'http'.
  
      static_configs:
        - targets: ["localhost:9090"]
    - job_name: "node_exporter"
      static_configs:
        - targets: ["localhost:9100"]

• copy config diatas menggunakan perintah berikut di dalam terminal

  sudo docker exec -ti prometheus vi /etc/prometheus/prometheus.yml

• hapus semua isinya dan ganti dengan config diatas

• Buka service menggunakan browser

1. port default promotheus : 9090
2. url : http://localhost:9090

• Buka menu targets maka dan harusnya akan muncul 2 targets yaitu node_exporter dan promotheus seperti ini.

Install Grafana ( docker )

• Pull docker image

  sudo docker pull grafana/grafana

• Jalankan docker container

  sudo docker run -d --name grafana --net host grafana/grafana

• Buka service menggunakan browser

1. grafana default port : 3000
2. url : http://localhost:3000
3. user : admin
4. pass : admin
   
   
   

• Aktifkan Data Source di Configuration Datasource dan Pilih promotheus

• Masukan url promotheus
  
  
• Pilih Service Promotheus
  
  
  
• Pilih menu dashboard kemudian pilih Import
  
  
• Import tampilan Dashboard dengan ID 11074
  
  
• Buka dashboard yang sudah di import tadi dan akan tampil seperti ini.