docker: Error response from daemon: OCI runtime create failed: container_linux.go:345: starting container process caused "exec: \"ping\": executable file not found in $PATH": unknown.

docker: Error response from daemon: OCI runtime create failed: container_linux.go:345: starting container process caused "exec: \"ping\": executable file not found in $PATH": unknown.

解决方案：

docker run learn/tutorial /bin/sh -C && ping www.baidu.com