package proxy import ( "github.com/prometheus/client_golang/prometheus" "github.com/cloudflare/cloudflared/connection" ) // Metrics uses connection.MetricsNamespace(aka cloudflared) as namespace and connection.TunnelSubsystem // (tunnel) as subsystem to keep them consistent with the previous qualifier. var ( totalRequests = prometheus.NewCounter( prometheus.CounterOpts{ Namespace: connection.MetricsNamespace, Subsystem: connection.TunnelSubsystem, Name: "total_requests", Help: "Amount of requests proxied through all the tunnels", }, ) concurrentRequests = prometheus.NewGauge( prometheus.GaugeOpts{ Namespace: connection.MetricsNamespace, Subsystem: connection.TunnelSubsystem, Name: "concurrent_requests_per_tunnel", Help: "Concurrent requests proxied through each tunnel", }, ) responseByCode = prometheus.NewCounterVec( prometheus.CounterOpts{ Namespace: connection.MetricsNamespace, Subsystem: connection.TunnelSubsystem, Name: "response_by_code", Help: "Count of responses by HTTP status code", }, []string{"status_code"}, ) requestErrors = prometheus.NewCounter( prometheus.CounterOpts{ Namespace: connection.MetricsNamespace, Subsystem: connection.TunnelSubsystem, Name: "request_errors", Help: "Count of error proxying to origin", }, ) activeTCPSessions = prometheus.NewGauge( prometheus.GaugeOpts{ Namespace: connection.MetricsNamespace, Subsystem: "tcp", Name: "active_sessions", Help: "Concurrent count of TCP sessions that are being proxied to any origin", }, ) totalTCPSessions = prometheus.NewCounter( prometheus.CounterOpts{ Namespace: connection.MetricsNamespace, Subsystem: "tcp", Name: "total_sessions", Help: "Total count of TCP sessions that have been proxied to any origin", }, ) ) func init() { prometheus.MustRegister( totalRequests, concurrentRequests, responseByCode, requestErrors, activeTCPSessions, totalTCPSessions, ) } func incrementRequests() { totalRequests.Inc() concurrentRequests.Inc() } func decrementConcurrentRequests() { concurrentRequests.Dec() } func incrementTCPRequests() { incrementRequests() totalTCPSessions.Inc() activeTCPSessions.Inc() } func decrementTCPConcurrentRequests() { decrementConcurrentRequests() activeTCPSessions.Dec() }