错误现象

执行脚本，脚本内部是个简单的批量pod的操作

kubectl -n mytest get pod  | grep nginx | awk '{print "kubectl -n mytest exec -it "$1" -- bash cleanlog.sh"}'|sh 

Unable to use a TTY - input is not a terminal or the right kind of file

查看帮助信息

Options:

-c, --container='': Container name. If omitted, the first container in the pod will be chosen

-f, --filename=[]: to use to exec into the resource

--pod-running-timeout=1m0s: The length of time (like 5s, 2m, or 3h, higher than zero) to wait until at least one

pod is running

-i, --stdin=false: Pass stdin to the container

-t, --tty=false: Stdin is a TTY ，这里需要创建一个交互TTY终端，可以考虑取掉-t参数

修正解决

kubectl -n mytest get pod  | grep nginx | awk '{print "kubectl -n mytest exec -i "$1" -- bash cleanlog.sh"}'|sh