从 docker 容器在主机上运行 docker 容器

Question

I'm trying to dockerize 2 dotnet console application that one depends on the other. When I run the 1st container I need it to run another container on the host, insert a parameter to it's stdin and wait for it to end the job and exit. What will be the best solution to achieve this?

Running a container inside a container seems to me like a bad solution, I've also thought about managing another process with a webserver (nginx or something) on the host that get the request as http request and execute a docker run command in the host but I'm sure there is a better solution for this (in this way the webserver will just run on the host and not inside a container).

There is also this solution but it seems to have major security issues.

I've tried also using the Docker.DotNet library but it does not help with my problem. any ideas for the best solution? Thanks in advance.

EDIT:

I will be using docker compose but the problem is that the 2nd container is not running and listening at all time, similar to the Hello-World container it's called, performs it's job and exits.

EDIT2: FIX

I've implemented redis as a message broker to communicate between the different services, while it changed the requirement a little (containers will always run and listen to redis) it helped me to solve the issue.

Answer 1

I am not sure I understand correctly what you need to do, but if you simply need to start two containers in parallel the simplest way I can think of is docker-compose .

Another way is with a python or bash/bat script that launches the containers independently (in python you can either use the Docker API or do it manually with the subprocess module). This allows you to perform other things (like writing on the stdin of one container, as you stated).