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Introduce metric representing N+ license expiration date #1102

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Introduce metric representing N+ license expiration date #1102

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9 changes: 9 additions & 0 deletions collector/nginx_plus.go
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Original file line number Diff line number Diff line change
Expand Up @@ -283,6 +283,7 @@ func NewNginxPlusCollector(nginxClient *plusclient.NginxClient, namespace string
"ssl_handshakes": newGlobalMetric(namespace, "ssl_handshakes", "Successful SSL handshakes", constLabels),
"ssl_handshakes_failed": newGlobalMetric(namespace, "ssl_handshakes_failed", "Failed SSL handshakes", constLabels),
"ssl_session_reuses": newGlobalMetric(namespace, "ssl_session_reuses", "Session reuses during SSL handshake", constLabels),
"license_active_till": newGlobalMetric(namespace, "license_expiration_timestamp_seconds", "License expiration date (expressed as Unix Epoch Time)", constLabels),
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would the license grace period be useful here too?

},
serverZoneMetrics: map[string]*prometheus.Desc{
"processing": newServerZoneMetric(namespace, "processing", "Client requests that are currently being processed", variableLabelNames.ServerZoneVariableLabelNames, constLabels),
Expand Down Expand Up @@ -654,6 +655,14 @@ func (c *NginxPlusCollector) Collect(ch chan<- prometheus.Metric) {
ch <- prometheus.MustNewConstMetric(c.totalMetrics["ssl_session_reuses"],
prometheus.CounterValue, float64(stats.SSL.SessionReuses))

license, err := c.nginxClient.GetNginxLicense(context.TODO())
if err != nil {
c.logger.Warn("error getting license information", "error", err.Error())
} else {
ch <- prometheus.MustNewConstMetric(c.totalMetrics["license_active_till"],
prometheus.GaugeValue, float64(license.ActiveTill))
}

for name, zone := range stats.ServerZones {
labelValues := []string{name}
varLabelValues := c.getServerZoneLabelValues(name)
Expand Down