1. Cause

When I run Ubuntu through k8s, I execute the following script

#!/bin/bash
service ssh start
echo root:$1|chpasswd

After the container is started, there is no resident foreground process inside the container, which causes the container to exit after the container is started successfully, thus continuing to restart.

2. Solution

At startup, perform a task that will never be completed

command: ["/bin/bash", "-ce", "tail -f /dev/null"]

Add the following to the script above:

#!/bin/bash
service ssh start
echo root:$1|chpasswd
tail -f /dev/null

Successfully solved, this script can be executed successfully, and the container can be started successfully