import "golang"
import "sys"

file "/tmp/mgmt/systemload" {
	state => $const.res.file.state.exists,
	content => golang.template("load average: {{ .load }} threshold: {{ .threshold }}\n", $tmplvalues),
}

$tmplvalues = struct{load => $theload, threshold => $threshold,}

$theload = sys.load()->x1
$threshold = 1.5	# change me if you like

# simple hysteresis implementation
$h1 = $theload > $threshold
$h2 = history($theload, 1000) > $threshold
$h3 = history($theload, 2000) > $threshold
$unload = $h1 or $h2 or $h3

virt "mgmt1" {
	uri => "qemu:///session",
	cpus => 1,
	memory => 524288,
	state => "running",
	transient => true,
}

# this vm shuts down under load...
virt "mgmt2" {
	uri => "qemu:///session",
	cpus => 1,
	memory => 524288,
	state => if $unload { "shutoff" } else { "running" },
	transient => true,
}