Function TestRunAddHost

cmd/nerdctl/container/container_run_linux_test.go:199–245

(t *testing.T)

}

func TestRunAddHost(t *testing.T) {
	// Not parallelizable (https://github.com/containerd/nerdctl/issues/1127)
	base := testutil.NewBase(t)
	base.Cmd("run", "--rm", "--add-host", "testing.example.com:10.0.0.1", testutil.AlpineImage, "cat", "/etc/hosts").AssertOutWithFunc(func(stdout string) error {
		var found bool
		sc := bufio.NewScanner(bytes.NewBufferString(stdout))
		for sc.Scan() {
			// removing spaces and tabs separating items
			line := strings.ReplaceAll(sc.Text(), " ", "")
			line = strings.ReplaceAll(line, "\t", "")
			if strings.Contains(line, "10.0.0.1testing.example.com") {
				found = true
			}
		}
		if !found {
			return errors.New("host was not added")
		}
		return nil
	})
	base.Cmd("run", "--rm", "--add-host", "test:10.0.0.1", "--add-host", "test1:10.0.0.1", testutil.AlpineImage, "cat", "/etc/hosts").AssertOutWithFunc(func(stdout string) error {
		var found int
		sc := bufio.NewScanner(bytes.NewBufferString(stdout))
		for sc.Scan() {
			// removing spaces and tabs separating items
			line := strings.ReplaceAll(sc.Text(), " ", "")
			line = strings.ReplaceAll(line, "\t", "")
			if strutil.InStringSlice([]string{"10.0.0.1test", "10.0.0.1test1"}, line) {
				found++
			}
		}
		if found != 2 {
			return fmt.Errorf("host was not added, found %d", found)
		}
		return nil
	})
	base.Cmd("run", "--rm", "--add-host", "10.0.0.1:testing.example.com", testutil.AlpineImage, "cat", "/etc/hosts").AssertFail()

	response := "This is the expected response for --add-host special IP test."
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		io.WriteString(w, response)
	})
	const hostPort = 8081
	s := http.Server{Addr: fmt.Sprintf(":%d", hostPort), Handler: nil, ReadTimeout: 30 * time.Second}
	go s.ListenAndServe()
	defer s.Shutdown(context.Background())
	base.Cmd("run", "--rm", "--add-host", "test:host-gateway", testutil.NginxAlpineImage, "curl", fmt.Sprintf("test:%d", hostPort)).AssertOutExactly(response)
}

func TestRunAddHostWithCustomHostGatewayIP(t *testing.T) {
	// Not parallelizable (https://github.com/containerd/nerdctl/issues/1127)