feat(config): support multi-service yaml config

runner.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"context"
+	"log"
+	"sync"
+	"time"
+
+	"github.com/tiennm99/keepalive/adapter"
+)
+
+type runningService struct {
+	config  serviceConfig
+	adapter adapter.Adapter
+}
+
+func runService(ctx context.Context, wg *sync.WaitGroup, svc runningService) {
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+
+		ticker := time.NewTicker(svc.config.Interval)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				tickCtx, cancel := context.WithTimeout(ctx, 3*time.Second)
+				count, err := svc.adapter.Increment(tickCtx)
+				cancel()
+				if err != nil {
+					log.Printf("[%s] increment: %v", svc.config.Name, err)
+					continue
+				}
+				log.Printf("[%s] counter: %d", svc.config.Name, count)
+			}
+		}
+	}()
+}
+
+func closeServices(services []runningService) {
+	for _, svc := range services {
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		if err := svc.adapter.Close(shutdownCtx); err != nil {
+			log.Printf("[%s] close: %v", svc.config.Name, err)
+		}
+		cancel()
+	}
+}