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8. Launch Services

Launch Services

Launch a daemon reload to take the services into account in systemd:

sudo systemctl daemon-reload

Start the services:

sudo systemctl start prometheus.service
sudo systemctl start node_exporter.service
sudo systemctl start process-exporter.service
sudo systemctl start alertmanager.service
sudo systemctl start grafana-server

And check that they are working fine, one by one:

systemctl status prometheus.service
systemctl status node_exporter.service
systemctl status process-exporter.service
systemctl status alertmanager.service
systemctl status grafana-server

A service working fine should look like this:

When everything is okay, activate the services!

sudo systemctl enable prometheus.service
sudo systemctl enable node_exporter.service
sudo systemctl enable process-exporter.service
sudo systemctl enable alertmanager.service
sudo systemctl enable grafana-server

Test Alert manager

Run this command to fire an alert:

curl -H "Content-Type: application/json" -d '[{"labels":{"alertname":"Test"}}]' localhost:9093/api/v1/alerts

Check your inbox, you have a surprise:

You will always receive a Firing alert first, then a Resolved notification to indicate the alert isn’t active anymore.