feat: use postgres

pkg/redisconn/health.go

@@ -0,0 +1,31 @@
+package redisconn
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+)
+
+// Ping bounds client.Ping under timeout and returns a wrapped error so
+// startup failures are easy to spot in service logs.
+//
+// timeout is typically taken from Config.OperationTimeout.
+func Ping(ctx context.Context, client *redis.Client, timeout time.Duration) error {
+	if client == nil {
+		return errors.New("ping redis: nil client")
+	}
+	if timeout <= 0 {
+		return errors.New("ping redis: timeout must be positive")
+	}
+
+	pingCtx, cancel := context.WithTimeout(ctx, timeout)
+	defer cancel()
+
+	if err := client.Ping(pingCtx).Err(); err != nil {
+		return fmt.Errorf("ping redis: %w", err)
+	}
+	return nil
+}