Added devp-deploy to rbd-exporter

book_with_bridge/channels/launch!/go.mod

@@ -0,0 +1,3 @@
+module main
+
+go 1.24.5

book_with_bridge/channels/launch!/main.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+)
+
+
+func launch() {
+	fmt.Println("To abort launch press Enter")
+	for i:=10;i >=0; i-- {
+		fmt.Printf("%d...\n",i)
+	}
+}
+
+func main() {
+	abort := make(chan struct{})
+
+	go func() {
+		os.Stdin.Read(make([]byte,1))
+		abort <- struct{}{}
+	}()
+
+	tick := time.Tick(1*time.Second)
+
+	for i:=10; i>=0; i-- {
+		fmt.Printf("%d...\n",i)
+		select {
+			case <-tick:
+			case <- abort:
+				fmt.Println("Launch cancelled")
+				return
+		}
+	}
+}