Add initialization logging

Signed-off-by: Renaud Gaubert <[email protected]>

pkg/main.go

@@ -84,13 +84,16 @@ func main() {
 
 func Run(c *cli.Context) error {
 	restart:
+
+	logrus.Info("Starting dcgm-exporter")
 	config := contextToConfig(c)
 
 	cleanup, err := dcgm.Init(dcgm.Embedded)
 	defer cleanup()
 	if err != nil {
 		logrus.Fatal(err)
 	}
+	logrus.Info("DCGM successfully initialized!")
 
 	ch := make(chan string, 10)
 	pipeline, cleanup, err := NewMetricsPipeline(config)

pkg/pipeline.go

@@ -82,6 +82,8 @@ func NewMetricsPipelineWithGPUCollector(c *Config, collector *DCGMCollector) (*M
 func (m *MetricsPipeline) Run(out chan string, stop chan interface{}, wg *sync.WaitGroup) {
 	defer wg.Done()
 
+	logrus.Info("Pipeline starting")
+
 	// Note we are using a ticker so that we can stick as close as possible to the collect interval.
 	// e.g: The CollectInterval is 10s and the transformation pipeline takes 5s, the time will
 	// ensure we really collect metrics every 10s by firing an event 5s after the run function completes.

pkg/server.go

@@ -53,6 +53,7 @@ func (s *MetricsServer) Run(stop chan interface{}, wg *sync.WaitGroup) {
 	httpwg.Add(1)
 	go func() {
 		defer httpwg.Done()
+		logrus.Info("Starting webserver")
 		if err := s.server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
 			logrus.Fatalf("Failed to Listen and Server HTTP server with err: `%v`", err)
 		}