Grafana is an open source metric analytics & visualization tool which can help us to monitor the system with a nice Dashboard.
Step 1: Installing Grafana
Grafana is available in the official packages repository, however it could not be the latest version, so we’ll use the official repository on packagecloud.
First, download the GPG key of packagecloud and add it to the trusted APT keys.
$ curl https://packagecloud.io/gpg.key | sudo apt-key add -
Then, add the packagecloud repository to your APT sources.
$ sudo add-apt-repository "deb https://packagecloud.io/grafana/stable/debian/ stretch main"