67 lines
1.3 KiB
Go
67 lines
1.3 KiB
Go
package metrics
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import (
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"github.com/prometheus/client_golang/prometheus"
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)
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const stateSubsystem = "state"
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const (
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healthMetric = "health"
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versionInfoMetric = "version_info"
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)
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// HealthStatus of the gate application.
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type HealthStatus int32
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const (
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HealthStatusUndefined HealthStatus = 0
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HealthStatusStarting HealthStatus = 1
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HealthStatusReady HealthStatus = 2
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HealthStatusShuttingDown HealthStatus = 3
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)
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type StateMetrics struct {
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healthCheck prometheus.Gauge
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versionInfo *prometheus.GaugeVec
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}
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func newStateMetrics() *StateMetrics {
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return &StateMetrics{
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healthCheck: mustNewGauge(appMetricsDesc[stateSubsystem][healthMetric]),
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versionInfo: mustNewGaugeVec(appMetricsDesc[stateSubsystem][versionInfoMetric]),
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}
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}
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func (m *StateMetrics) SetHealth(s HealthStatus) {
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if m == nil {
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return
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}
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m.healthCheck.Set(float64(s))
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}
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func (m *StateMetrics) SetVersion(ver string) {
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if m == nil {
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return
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}
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m.versionInfo.WithLabelValues(ver).Set(1)
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}
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func (m *StateMetrics) Describe(desc chan<- *prometheus.Desc) {
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if m == nil {
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return
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}
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m.healthCheck.Describe(desc)
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m.versionInfo.Describe(desc)
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}
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func (m *StateMetrics) Collect(ch chan<- prometheus.Metric) {
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if m == nil {
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return
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}
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m.healthCheck.Collect(ch)
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m.versionInfo.Collect(ch)
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}
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