Scripted Dashboard in Grafana with opentsdb as the source - opentsdb

Question

I want to create a scripted dashboard that takes one OpenTSDB metric as the datasource. On the Grafana website, I couldn't find any example. I hope I can add some line like:
metric = 'my.metric.name'
into the JavaScript code, and than I can access the dashboard on the fly.
var rows = 1;
var seriesName = 'argName';
if(!_.isUndefined(ARGS.rows)) {
rows = parseInt(ARGS.rows, 10);
}
if(!_.isUndefined(ARGS.name)) {
seriesName = ARGS.name;
}
for (var i = 0; i < rows; i++) {
dashboard.rows.push({
title: 'Scripted Graph ' + i,
height: '300px',
panels: [
{
title: 'Events',
type: 'graph',
span: 12,
fill: 1,
linewidth: 2,
targets: [
{
'target': "randomWalk('" + seriesName + "')"
},
{
'target': "randomWalk('random walk2')"
}
],
}
]
});
}
return dashboard;

Answer 1

Sorry to answer my own question. But I just figured it out and hopefully post here will benefit somebody.
The script is here. Access the dashboard on the fly with:
http://grafana_ip:3000/dashboard/script/donkey.js?name=tsdbmetricname
/* global _ */
/*
* Complex scripted dashboard
* This script generates a dashboard object that Grafana can load. It also takes a number of user
* supplied URL parameters (in the ARGS variable)
*
* Return a dashboard object, or a function
*
* For async scripts, return a function, this function must take a single callback function as argument,
* call this callback function with the dashboard object (look at scripted_async.js for an example)
*/
// accessible variables in this scope
var window, document, ARGS, $, jQuery, moment, kbn;
// Setup some variables
var dashboard;
// All url parameters are available via the ARGS object
var ARGS;
// Intialize a skeleton with nothing but a rows array and service object
dashboard = {
rows : [],
};
// Set a title
dashboard.title = 'From Shrek';
// Set default time
// time can be overriden in the url using from/to parameters, but this is
// handled automatically in grafana core during dashboard initialization
dashboard.time = {
from: "now-6h",
to: "now"
};
var rows = 1;
var metricName = 'argName';
//if(!_.isUndefined(ARGS.rows)) {
// rows = parseInt(ARGS.rows, 10);
//}
if(!_.isUndefined(ARGS.name)) {
metricName = ARGS.name;
}
for (var i = 0; i < rows; i++) {
dashboard.rows.push({
title: metricName,
height: '300px',
panels: [
{
title: metricName,
type: 'graph',
span: 12,
fill: 1,
linewidth: 2,
targets: [
{
"aggregator": "avg",
"downsampleAggregator": "avg",
"errors": {},
"metric":ARGS.name,
//"metric": "search-engine.relevance.latency.mean",
"tags": {
"host": "*"
}
}
],
tooltip: {
shared: true
}
}
]
});
}
return dashboard;