ec2 aws does not respond to the installed application

I recently received a ec2 to upload an application from a client in it, the application was done in springboot and until then I had no difficulty installing postgres and application as service ( graças ao script ant ), good service running and application went up observing by logging on the 8080 port, however when I put the external ip of aws and I try to access /health it does not sign the life, literally. I noticed that the IP does not ping, it seems that it is not recognizing external access, I made a curl inside the machine with 127.0.0.1:8080/health and it works, that is, it is not the application. Is there still some configuration on the server to externalize the access on the provided ip and I get access to the application?