Docker attach

[Dffcc]

Ubuntu:

https://www.bilibili.com/video/BV1qN411K7W3?t=185.8&p=48

https://hub.docker.com/layers/library/ubuntu/jammy/images/sha256-aa772c98400ef833586d1d517d3e8de670f7e712bf581ce6053165081773259d?context=explore

Tomcat:

https://www.bilibili.com/video/BV1qN411K7W3?t=1822.2&p=48

https://hub.docker.com/layers/library/tomcat/8.5.49/images/sha256-8e75a9065fd732f2d06fccba994b246d77360b6e9870ac02b60b5b7d1fc6007d?context=explore

1.不懂为何 docker attach tomcat 的地方，为什么可以从 Tomcat 的 Docker file 看 CMD ["catalina.sh" "run"] ，就可得知它是标准输出?

2.打出 docker attach ubuntu 后，为何可以用键盘，而 Tomcat 却无法使用键盘?