70 lines
2.2 KiB
Go
70 lines
2.2 KiB
Go
package poller
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import (
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"fmt"
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"net/http"
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"strings"
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"time"
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"github.com/davidnewhall/unifi-poller/pkg/metrics"
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"github.com/davidnewhall/unifi-poller/pkg/promunifi"
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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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const oneDecimalPoint = 10
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// RunPrometheus starts the web server and registers the collector.
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func (u *UnifiPoller) RunPrometheus() error {
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u.Logf("Exporting Measurements at https://%s/metrics for Prometheus", u.Config.HTTPListen)
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http.Handle("/metrics", promhttp.Handler())
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prometheus.MustRegister(promunifi.NewUnifiCollector(promunifi.UnifiCollectorCnfg{
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Namespace: strings.Replace(u.Config.Namespace, "-", "", -1),
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CollectFn: u.ExportMetrics,
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LoggingFn: u.LogExportReport,
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ReportErrors: true, // XXX: Does this need to be configurable?
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}))
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return http.ListenAndServe(u.Config.HTTPListen, nil)
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}
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// ExportMetrics updates the internal metrics provided via
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// HTTP at /metrics for prometheus collection.
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// This is run by Prometheus as CollectFn.
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func (u *UnifiPoller) ExportMetrics() (*metrics.Metrics, error) {
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m, err := u.CollectMetrics()
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if err != nil {
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u.LogErrorf("collecting metrics: %v", err)
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u.Logf("Re-authenticating to UniFi Controller")
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if err := u.Unifi.Login(); err != nil {
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u.LogError(err, "re-authenticating")
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return nil, err
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}
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if m, err = u.CollectMetrics(); err != nil {
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u.LogErrorf("collecting metrics: %v", err)
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return nil, err
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}
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}
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u.AugmentMetrics(m)
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return m, nil
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}
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// LogExportReport is called after prometheus exports metrics.
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// This is run by Prometheus as LoggingFn
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func (u *UnifiPoller) LogExportReport(report *promunifi.Report) {
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m := report.Metrics
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idsMsg := ""
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if u.Config.CollectIDS {
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idsMsg = fmt.Sprintf(", IDS Events: %d, ", len(m.IDSList))
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}
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u.Logf("UniFi Measurements Exported. Site: %d, Client: %d, "+
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"UAP: %d, USG/UDM: %d, USW: %d%s, Descs: %d, "+
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"Metrics: %d, Errs: %d, 0s: %d, Reqs/Total: %v / %v",
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len(m.Sites), len(m.Clients), len(m.UAPs), len(m.UDMs)+len(m.USGs), len(m.USWs),
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idsMsg, report.Descs, report.Total, report.Errors, report.Zeros,
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report.Fetch.Round(time.Millisecond/oneDecimalPoint),
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report.Elapsed.Round(time.Millisecond/oneDecimalPoint))
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}
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