68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
package main
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import (
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"log"
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"net/http"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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)
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var (
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options Options
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logger Logger
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)
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// SMARTctlManagerCollector implements the Collector interface.
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type SMARTctlManagerCollector struct {
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}
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// Describe sends the super-set of all possible descriptors of metrics
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func (i SMARTctlManagerCollector) Describe(ch chan<- *prometheus.Desc) {
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prometheus.DescribeByCollect(i, ch)
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}
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// Collect is called by the Prometheus registry when collecting metrics.
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func (i SMARTctlManagerCollector) Collect(ch chan<- prometheus.Metric) {
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info := NewSMARTctlInfo(ch)
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for _, device := range options.SMARTctl.Devices {
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if json, err := readData(device); err == nil {
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info.SetJSON(json)
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smart := NewSMARTctl(json, ch)
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smart.Collect()
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} else {
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logger.Error(err.Error())
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}
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}
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info.Collect()
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}
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func init() {
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options = loadOptions()
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if len(options.SMARTctl.Devices) == 0 {
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logger.Debug("No devices specified, trying to load them automatically")
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json := readSMARTctlDevices()
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devices := json.Get("devices").Array()
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for _, d := range devices {
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device := d.Get("name").String()
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logger.Debug("Found device: %s", device)
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options.SMARTctl.Devices = append(options.SMARTctl.Devices, device)
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}
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}
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}
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func main() {
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reg := prometheus.NewPedanticRegistry()
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reg.MustRegister(
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prometheus.NewProcessCollector(prometheus.ProcessCollectorOpts{}),
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prometheus.NewGoCollector(),
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)
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prometheus.WrapRegistererWithPrefix("", reg).MustRegister(SMARTctlManagerCollector{})
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logger.Info("Starting on %s%s", options.SMARTctl.BindTo, options.SMARTctl.URLPath)
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http.Handle(options.SMARTctl.URLPath, promhttp.HandlerFor(reg, promhttp.HandlerOpts{}))
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log.Fatal(http.ListenAndServe(options.SMARTctl.BindTo, nil))
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}
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