Dockerfile: how to set env variable from file contents

Dockerfile: how to set env variable from file contents

shell docker docker-compose sh posix

docker

Is it possible in some way to use POSIX semaphores between Docker containers or between a container and the host?

c posix ipc docker semaphore

docker

How to set POSIX message queues limit to unlimited in docker container using --ulimit option

docker posix ulimit

docker