无法从ubuntu docker容器内ping google

我对docker和linux完全陌生,我正在尝试从docker容器中ping google。我收到以下错误。。。。

vagrant@vagrant-ubuntu-trusty-64:~$ docker run ubuntu ping google.com
docker: Error response from daemon: OCI runtime create failed:
container_linux.go:348: starting container process caused "exec: \"ping\":
executable file not found in $PATH": unknown.

如上所述,我使用 ubuntu/trusty64 box 流浪汉。

我在vagrantfile中启用了公共网络

  # Create a public network, which generally matched to bridged network.
  # Bridged networks make the machine appear as another physical device on
  # your network.
  config.vm.network "public_network"

并且可以从VM ping google

vagrant@vagrant-ubuntu-trusty-64:~$ ping google.com
PING google.com (216.58.204.46) 56(84) bytes of data.
64 bytes from lhr25s12-in-f14.1e100.net (216.58.204.46): icmp_seq=1 ttl=52 time=29.5 ms
64 bytes from lhr25s12-in-f14.1e100.net (216.58.204.46): icmp_seq=2 ttl=52 time=36.2 ms
64 bytes from lhr25s12-in-f14.1e100.net (216.58.204.46): icmp_seq=3 ttl=52 time=95.7 ms

但似乎不在docker容器内。

我试过这个解决方案,但没用- https://odino.org/cannot-connect-to-the-internet-from-your-docker-containers/

这里可能有什么问题?

谢谢