Can atreugo be hot upgrade? about atreugo

[savsgio]

Do you mean a Hot reload about configuration (like host, compression, etc)?
What do you need exactly?

[imxxiv]

After the change of business logic, need to reload.
For example, an api interface method has been added, need gracefully reload.

[savsgio]

In compiled languages like Go, Java, C, etc, you must recompile your programe if you change the code (bussines logic).

GracefulShutdown just wait to finish incomplete requests, and shutdown server.

Sorry.

[imxxiv]

https://gravitational.com/blog/golang-ssh-bastion-graceful-restarts/
In the example of this page

1. $ go build restart.go
   $ ./restart &
   [1] 28323
   Created listener file descriptor for :8080.
   $ curl http://127.0.0.1:8080/hello
   Hello from 28323!
   $ curl http://127.0.0.1:8080/test
   404 page not found

2. add testHandler

func testHandler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "Test from %v!\n", os.Getpid())
}

func startServer(addr string, ln net.Listener) *http.Server {
	http.HandleFunc("/hello", handler)
	http.HandleFunc("/test", testHandler)

	httpServer := &http.Server{
		Addr: addr,
	}
	go httpServer.Serve(ln)

	return httpServer
}

3. $ go build restart.go

4. $ kill -SIGUSR2 28323
   user defined signal 2 signal received.
   Forked child 28432.
   Imported listener file descriptor for :8080.
   $ curl http://127.0.0.1:8080/test
   Test from 28432!
   $ curl http://127.0.0.1:8080/hello
   Hello from 28432!

5. $ kill -SIGTERM 28323

Program can gracefully restart.
Can atreugo use this way?
Use kill command or cur http://127.0.0.1:8080/restart