使用docker exec作为标签传递命令行参数

Question

I have a main.java function that uses command like arguments to run processes specific to the input. I am now running the java project through a docker container. I would need the command be similar to

docker exec -it container_id -argument1

How would I specify in dockerfile what "-argument1" is and to send it to the main.java for execution?

Answer 1

One way would be to pass your arguments as environment variables. Ex: docker exec -it <container_id> -e "FOO=BAR" <command>

Then use System.getenv("FOO"); to get the value.