如何向 docker 容器内的应用程序 shell 注入命令？

Question

When running跑步时

docker exec mycontainer -it  -- /usr/bin/myapp

myapp shell is opened myapp shell 已打开

myapp>

How to inject command to that prompt scriptable way so that it would be the same like giving command manually?如何以可编写脚本的提示方式注入命令，使其与手动发出命令一样？

myapp>mycommand

Answer 1

You can try this:你可以试试这个：

docker exec -i mycontainer /usr/bin/myapp << EOF
mycommand
EOF