How to make context with two cancel funcs

main.go

// link to go playground: https://play.golang.org/p/_XpSn6NoNVY

package main

import (
	"context"
	"time"
)

func main() {
	ctx1, cancel1 := context.WithCancel(context.Background())
	ctx2, cancel2 := context.WithCancel(ctx1)

	cancel1() // if you cancel first context, second will be cancelled too.
	// cancel2() // if you cancel second one, only second context will be cancelled, first will work

	_, _ = ctx1, cancel1
	_, _ = ctx2, cancel2

	go func() {
		<-ctx1.Done()
		println("ctx 1 done")
	}()
	go func() {
		<-ctx2.Done()
		println("ctx 2 done")
	}()

	time.Sleep(time.Second)
}