owncast/metrics/prometheus.go

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package metrics
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)
var (
labels map[string]string
activeViewerCount prometheus.Gauge
activeChatClientCount prometheus.Gauge
cpuUsage prometheus.Gauge
chatUserCount prometheus.Gauge
currentChatMessageCount prometheus.Gauge
playbackErrorCount prometheus.Gauge
)
func setupPrometheusCollectors() {
// Setup the Prometheus collectors.
activeViewerCount = promauto.NewGauge(prometheus.GaugeOpts{
Name: "owncast_instance_active_viewer_count",
Help: "The number of viewers.",
ConstLabels: labels,
})
activeChatClientCount = promauto.NewGauge(prometheus.GaugeOpts{
Name: "owncast_instance_active_chat_client_count",
Help: "The number of connected chat clients.",
ConstLabels: labels,
})
chatUserCount = promauto.NewGauge(prometheus.GaugeOpts{
Name: "owncast_instance_total_chat_users",
Help: "The total number of chat users on this Owncast instance.",
ConstLabels: labels,
})
currentChatMessageCount = promauto.NewGauge(prometheus.GaugeOpts{
Name: "owncast_instance_current_chat_message_count",
Help: "The number of chat messages currently saved before cleanup.",
ConstLabels: labels,
})
playbackErrorCount = promauto.NewGauge(prometheus.GaugeOpts{
Name: "owncast_instance_playback_error_count",
Help: "Errors collected from players within this window",
ConstLabels: labels,
})
cpuUsage = promauto.NewGauge(prometheus.GaugeOpts{
Name: "owncast_instance_cpu_usage",
Help: "CPU usage as seen internally to Owncast.",
ConstLabels: labels,
})
}