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Add service RED metrics definitions

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Partially fixes #532 by introducing two metrics that are
supported by Kubernetes HPAv2 and RED metrics-style
dashboards.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
This commit is contained in:
Alex Ellis (VMware)
2019-01-04 17:30:35 +00:00
committed by Alex Ellis
parent 5157e68479
commit 1cc767e898
2 changed files with 38 additions and 1 deletions
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6
gateway/metrics/exporter.go
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@ -40,6 +40,9 @@ func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
e.metricOptions.GatewayFunctionInvocation.Describe(ch)
e.metricOptions.GatewayFunctionsHistogram.Describe(ch)
e.metricOptions.ServiceReplicasGauge.Describe(ch)
e.metricOptions.ServiceMetrics.Counter.Describe(ch)
e.metricOptions.ServiceMetrics.Histogram.Describe(ch)
}
// Collect collects data to be consumed by prometheus
@ -54,6 +57,9 @@ func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
Set(float64(service.Replicas))
}
e.metricOptions.ServiceReplicasGauge.Collect(ch)
e.metricOptions.ServiceMetrics.Counter.Collect(ch)
e.metricOptions.ServiceMetrics.Histogram.Collect(ch)
}
// StartServiceWatcher starts a ticker and collects service replica counts to expose to prometheus