HTML

Summary

Grafana panel for displaying metric sensitive or arbitary HTML.

This only works with Grafana 3.X or later

The control allows the specification of CSS, HTML and JS for both initialisation and metric updates.

This is based on the work by Marcus Calidus and the SVG plugin.

Installation

It is possible to clone this repo directly into your plugins directory. (var/lib/grafana/plugins)

Afterwards restart grafana-server and the plugin should be automatically detected and used.

npm install
grunt
sudo service grafana-server restart

Clone into a directory of your choice

If the plugin is cloned to a directory that is not the default plugins directory then you need to edit your grafana.ini config file (Default location is at /etc/grafana/grafana.ini) and add this:

[plugin.svg]
path = /home/your/clone/dir/svg-panel

Note that if you clone it into the grafana plugins directory you do not need to add the above config option. That is only if you want to place the plugin in a directory outside the standard plugins directory. Be aware that grafana-server needs read access to the directory.

Options

HTML Data and CSS

HTML & CSS is encapsulated in a shadow root and will therefore not "leak" outside the control.

Events

onHandleMetric

this code is execute upon every Rerfresh

onHandleMetric(ctrl: MetricsPanelCtrl, svgnode: HTMLElement)

ctrl passes a grafana MetricsPanelCtrl object. This object contains all relevant data pertainig the current panel. You may want to use the ctrl.data array property to access the current measurement data.

htmlnode passes the HTMLElement of the html content on the panel. THis allows direct access to and editing of the html content

htmlnode.innerHTML = "Hello World";

onInit

this event is executed once, right after the first initializiation of the SVG.

onHandleMetric(ctrl: MetricsPanelCtrl, svgnode: HTMLElement)

ctrl passes a grafana MetricsPanelCtrl object. This object contains all relevant data pertainig the current panel. You may want to use the ctrl.data array property to access the current measurement data.

htmlnode passes the HTMLElement of the html content on the panel. THis allows direct access to and editing of the html

htmlnode.innerHTML = "Hello World";

Changelog

0.0.1

• Initial build

To do

• Fix syntax highlighting for CSS and HTML
• Build "code snippet" library to allow commonly used HTML constructs to be stored and retrieved (including the relevant CSS and JS)

Attributions

Marcus Calidus

SVG Grafana plugin on which this HTML plugin is based

Simran Singh

Icons used in this plugin