Ingress (Kubernetes) working only with path "/" - spring-boot

Question

This is my ingress.yaml file:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: spring-ingress
annotations:
nginx.ingress.kubernetes.io/enable-cors: "true"
nginx.ingress.kubernetes.io/cors-allow-methods: "PUT, GET, POST, OPTIONS, DELETE"
nginx.ingress.kubernetes.io/cors-allow-origin: "*"
nginx.ingress.kubernetes.io/cors-allow-credentials: "true"
nginx.ingress.kubernetes.io/cors-allow-headers: "Content-Type"
nginx.ingress.kubernetes.io/rewrite-target: "/"
spec:
rules:
- host: my-project.app.loc
http:
paths:
- path: /
pathType: ImplementationSpecific
backend:
service:
name: user-service
port:
number: 8080
This is my UserController.java file:
#RestController
public class UserController {
#GetMapping("/hello1")
public String sayHello1() {
return "Hello World 1!";
}
#GetMapping("/hello2")
public String sayHello2() {
return "Hello World 2!";
}
}
This setup works. For example, if I call:
curl my-project.app.loc/hello1
I get Hello World 1!
However, my goal is to call:
curl my-project.app.loc/users/hello1
and get Hello World 1!
I found two working solutions:
Add #RequestMapping("/users") annotation in my UserController class.
Or
Add server.servlet.context-path=/users in application.properties file.
All this, with "/" path in Ingress file.
But I saw many example on Internet in which people use path: /users in ingress.yaml file, without using #RequestMapping annotation or editing application.properties.
I would like to know why this setup doesn't work for me and what could I do to make it work. As you can see, I've also used the rewrite-target annotation.
Thank you all in advance.
Solution:
I solved using this configuration for ingress.yaml file:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: spring-ingress
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
rules:
- host: my-project.app.loc
http:
paths:
- path: /users/(.*)
pathType: ImplementationSpecific
backend:
service:
name: user-service
port:
number: 8080