Bosun Templates: Graph and GraphAll Filter, Sort, Limit and Graph
Example
When using GraphAll you may still want to filter the results, in which case you can use an Alert variable with the Filter, Sort, and Limit functions.
template graph.template {
subject = ...
body = `{{template "header" .}}
<strong>Graph Filtered Variable</strong>
<div>{{.Graph .Alert.Vars.graph_below_5 .Alert.Vars.graph_unit}}</div>
<strong>Graph Filter+Sort+Limit Variable (Maximum of 10 series)</strong>
<div>{{.Graph .Alert.Vars.graph_lowest_10 .Alert.Vars.graph_unit2}}</div>
`
}
alert os.low.memory {
template = graph.template
...
$graph_all = q("avg:300s-avg:os.mem.percent_free{host=ny-*}", "1d", "")
$graph_unit = All Systems with Less than 5 Percent Free Memory
$graph_below_5 = filter($graph_all, min($graph_all) < 5)
$graph_unit2 = Ten Systems with lowest Percent Free Memory
$graph_lowest_10 = filter($graph_all, limit(sort(min($graph_min_5),"asc"),10))
...
}
