prometheus node_exporter grafana setup
Blog urls:
prometheus installation https://tkdhanasekar.wordpress.com/2021/04/03/prometheus-installation-on-centos-ubuntu-linux/
Node_exporter installation https://tkdhanasekar.wordpress.com/2021/04/03/node-exporter-installation-for-prometheus-in-linux/
grafana installation https://tkdhanasekar.wordpress.com/2021/04/03/grafana-installation-on-linux/