go time ticker and context timeout

main.go

package main

import (
	"context"
	"fmt"
	"os"
	"os/signal"
	"syscall"
	"time"
)

func main() {
	maxTime := 10 * time.Second
	jobTime := 15 * time.Second

	ctx, cancel := context.WithTimeout(context.Background(), maxTime)
	ctx, cancel = signal.NotifyContext(ctx, os.Interrupt, syscall.SIGTERM)
	defer func() {
		func() {
			println("Cleanup [aka checking if any thing is left]")
		}()
		cancel()
	}()

	result, err := dummry(ctx, jobTime)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Printf("return: %d\n", result)
	return
}

// simulating some work
func dummry(ctx context.Context, t time.Duration) (int, error) {
	ticker := time.NewTimer(t)
	for {
		select {
		case <-ticker.C:
			return 0, nil
		case <-ctx.Done():
			return 0, ctx.Err()
		default:
			fmt.Println(time.Now(), "Waiting for timer to go off")
			time.Sleep(time.Second)
		}
	}
}