grafana-nodered-demo

Grafana snap which come with the MQTT plugin and all the required configurations to run
the IoT Device nodered demo. The snap is supposed to be installed on a local pc.
Once installed, point your browser to http://localhost:3000 to access the grafana dashboard.
The Grafana snap includes a Data source configured to connect to hivemq public MQTT broker.
To change the broker, login to grafana with admin/admin and go to "Data Sources/MQTT".
The grafana.ini file is located in $SNAPDATA/conf/grafana.ini. Edit with root permissions to change the configuration
(e.g. to change the grafana http port, search for "httpport" and change the port accordingly.
The snap provides a content interface slot called "writable".
The "writable" slot allows r/w on $SNAP_DATA/conf. Tipical usage is to add/modify a custom grafana.ini file.
To connect to the interface, your snap should declare a "writable" slot as described below:

    plugs:

       writable:

           interface: content

           content: writable-data

           target: <your target dir>

More info on content interface here: https://snapcraft.io/docs/content-interface

Use the following command to connect the interface:
snap connect <your-snap-name>:writable grafana-nodered-demo:writable