[#873] node: Start metrics and pprof as soon as possible

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

cmd/frostfs-node/httpcomponent.go

@@ -36,20 +36,18 @@ func (cmp *httpComponent) init(c *cfg) {
 			cmp.shutdownDur,
 		),
 	)
-	c.closers = append(c.closers, closer{
-		cmp.name,
-		func() { stopAndLog(c, cmp.name, srv.Shutdown) },
-	})
-	c.workers = append(c.workers, worker{
-		cmp.name,
-		func(ctx context.Context) {
-			runAndLog(ctx, c, cmp.name, false, func(context.Context, *cfg) {
+	c.wg.Add(1)
+	go func() {
+		defer c.wg.Done()
+
 		c.log.Info(logs.FrostFSNodeStartListeningEndpoint,
 			zap.String("service", cmp.name),
 			zap.String("endpoint", cmp.address))
 		fatalOnErr(srv.Serve())
-			})
-		},
+	}()
+	c.closers = append(c.closers, closer{
+		cmp.name,
+		func() { stopAndLog(c, cmp.name, srv.Shutdown) },
 	})
 }
 
@@ -64,7 +62,6 @@ func (cmp *httpComponent) reload(ctx context.Context) error {
 	}
 	// Cleanup
 	delCloser(cmp.cfg, cmp.name)
-	delWorker(cmp.cfg, cmp.name)
 	// Init server with new parameters
 	cmp.init(cmp.cfg)
 	// Start worker

cmd/frostfs-node/worker.go

@@ -30,15 +30,6 @@ func startWorker(ctx context.Context, c *cfg, wrk worker) {
 	}(wrk)
 }
 
-func delWorker(c *cfg, name string) {
-	for i, worker := range c.workers {
-		if worker.name == name {
-			c.workers = append(c.workers[:i], c.workers[i+1:]...)
-			return
-		}
-	}
-}
-
 func getWorker(c *cfg, name string) *worker {
 	for _, wrk := range c.workers {
 		if wrk.name == name {