Configure Prometheus and Node Exporter to get metric for Grafana
##1. Download Packet Prometheus Server
cd /opt
sudo tar xvfz prometheus-2.20.1.linux-amd64.tar.gz
##2. Config Prometheus Server
cd prometheus-2.20.1.linux-amd64
vi config.yml
global:
scrape_interval: 15s
evaluation_interval: 15s
scrape_configs:
- job_name: ‘prometheus’
static_configs:
- targets: [‘192.168.0.8:9090’]
##3.Check config before we running the Prometheus
./promtool check config config.yml
##4. Running Prometheus Server as a Service
vi /etc/systemd/system/prometheus_server.service
[Unit]
Description=Prometheus Server
[Service]
User=root
ExecStart=/opt/prometheus-2.20.1.linux-amd64/prometheus — config.file=/opt/prometheus-2.20.1.linux-amd64/config.yml — web.external-url=http://192.168.0.8:9090/
[Install]
WantedBy=default.target
##5. Start Prometheus Server Service
sudo systemctl daemon-reload
sudo systemctl enable prometheus_server.service
sudo systemctl start prometheus_server.service
systemctl status prometheus_server.service
journalctl -u prometheus_server
##6. Check Prometheus
Open Browser and type, http://192.168.0.8:9090/metrics
##1. Download Paket Node Exporter to add VM that we want to monitor,
ssh to vm/server
cd /opt
sudo tar xvfz node_exporter-1.0.1.linux-amd64.tar.gz
cd node_exporter-1.0.1.linux-amd64
##2. Running Node Exporter as a Service
vi /etc/systemd/system/node_exporter.service
[Unit]
Description=Node Exporter
[Service]
User=root
ExecStart=/opt/node_exporter-0.18.1.linux-amd64/node_exporter — web.listen-address=192.168.111.2:9100
[Install]
WantedBy=default.target
— web.listen-address is IP address vm/server which is can communicate with IP Prometheus 192.168.0.8 through ping command.
##3. Start Node Exporter Service
sudo systemctl daemon-reload
sudo systemctl enable node_exporter.service
sudo systemctl start node_exporter.service
sudo systemctl status node_exporter.service
sudo journalctl -u node_exporte
##1. Add IP vm/sever to Prometheus server
ssh to vm/server Prometheus
cd /opt/prometheus-2.20.1.linux-amd64
vi config.yml
global:
scrape_interval: 15s
evaluation_interval: 15s
scrape_configs:
- job_name: ‘prometheus’
static_configs:
- targets: [‘192.168.0.8:9090’]
- targets: [‘192.168.111.2:9090’]
##2. Reload and Restart Prometheus
sudo systemctl daemon-reload
sudo systemctl restart prometheus_server.service
sudo systemctl status prometheus_server.service
##3. Check Prometheus
Open browser http://192.168.0.8:9090/targets
##1. Add data Prometheus to Grafana
Go to Grafana web, go to Config > Data Source, Select Prometheus, and fill in the blank like picture below:
Save and Test.
##2. Create Dashboard, Add Query
Select Query Prometheus 2 (192.168.0.8:9090), fill in Metrics like picture above
Tab Visualization, setting value, you can refer to picture above
Tab General, change Title name, and back,
We success to monitor status Prometheus.
