Grafana allows you to query, visualize, alert on and understand your metrics no matter where they are stored. Grafana has pluggable data source model and comes bundled with rich support for many of the most popular time series databases like Graphite, Prometheus, Elasticsearch, OpenTSDB and InfluxDB. It also has built-in support for cloud monitoring vendors like Google Stackdriver, Amazon Cloudwatch, Microsoft Azure and SQL databases like MySQL and Postgres. Grafana is the only tool that can combine data from so many places into a single dashboard.

Create, explore, and share dashboards with your team and foster a data driven culture:

• Visualize: Fast and flexible client side graphs with a multitude of options. Panel plugins for many different way to visualize metrics and logs.

• Dynamic Dashboards: Create dynamic & reusable dashboards with template variables that appear as dropdowns at the top of the dashboard.

• Explore Metrics: Explore your data through ad-hoc queries and dynamic drilldown. Split view and compare different time ranges, queries and data sources side by side.

• Explore Logs: Experience the magic of switching from metrics to logs with preserved label filters. Quickly search through all your logs or streaming them live.

• Alerting: Visually define alert rules for your most important metrics. Grafana will continuously evaluate and send notifications to systems like Slack, PagerDuty, VictorOps, OpsGenie.

• Mixed Data Sources: Mix different data sources in the same graph! You can specify a data source on a per-query basis. This works for even custom datasources.

https://grafana.com/
Grafana GiHub repository

A Grafana metrics dashboard for the metrics provided by Grafana Loki. See also This Grafana dashboard in the Github Repository.

Grafana documentation
Install on Debian or Ubuntu

Manual pages:

user@host:~$ 

To install Grafana on Debian:

root@host:~$ apt-get install -y apt-transport-https wget
root@host:~$ wget -q -O - https://packages.grafana.com/gpg.key | apt-key add -
root@host:~$ echo "deb https://packages.grafana.com/oss/deb stable main" > /etc/apt/sources.list.d/grafana.list
root@host:~$ apt-get update
root@host:~$ apt-get install grafana

If a local IPTables firewall is active on the system running Grafana open the TCP port 3000 for access to the Grafana WebUI:

iptables.conf

# Allow access to Grafana from local networks
-A INPUT -p tcp -s <YOUR-NETWORK> --dport 3000 -j ACCEPT

and reload the IPTables rules:

root@host:~$ iptables-restore < iptables.conf

1. Navigate to http://your-grafana-host:3000/ in a Web browser.

2. Log into Grafana with the default credentials. User admin and password admin.

3. You will be prompted to change the password for the admin user. Choose a reasonable strong password.

1. Navigate to http://your-grafana-host:3000/ in a Web browser.

2. Log into Grafana with the default credentials. User admin and password admin.

3. Click on the “cogwheel” icon in the sidebar to open the Configuration menu.

4. Click on “Data Sources”.

5. Click on “Add data source”.

6. Select “Prometheus” as the type.

7. Set the appropriate Prometheus server URL (for example, http://localhost:9090/)

8. Adjust other data source settings as desired (for example, choosing the right Access method).

9. Click “Save & Test” to save the new data source.

To start Grafana:

root@host:~$ systemctl enable grafana-server.service
root@host:~$ systemctl start grafana-server.service

To stop Grafana:

root@host:~$ systemctl stop grafana-server.service

To check the status of Grafana:

root@host:~$ systemctl status grafana-server.service