How do I pass multiple commands in Docker compose?

How do I pass multiple commands in Docker compose?

To run multiple commands in the docker-compose file by using bash -c ….This will call the following commands in order:

1. python manage.py wait_for_db – wait for the DB to be ready.
2. python manage.py migrate – run any migrations.
3. python manage.py runserver 0.0. 0.0:8000 – start my development server.

How do I run a bash script in a Docker container?

Follow these steps:

1. Use docker ps to get the name of the existing container.
2. Use the command docker exec -it /bin/bash to get a bash shell in the container.
3. Or directly use docker exec -it to execute whatever command you specify in the container.

Can Docker container have multiple processes?

It’s ok to have multiple processes, but to get the most benefit out of Docker, avoid one container being responsible for multiple aspects of your overall application. You can connect multiple containers using user-defined networks and shared volumes. Then you start supervisord , which manages your processes for you.

What is the difference between Docker run CMD and ENTRYPOINT?

In a nutshell: CMD sets default command and/or parameters, which can be overwritten from command line when docker container runs. ENTRYPOINT command and parameters will not be overwritten from command line. Instead, all command line arguments will be added after ENTRYPOINT parameters.

How to run bash script inside a docker container?

This way it’s not necessary to commit on a bash change anymore. In case you don’t want (or have) a running container, you can call your script directly with the run command. Have a look at entry points too. You will be able to use multiple CMD https://docs.docker.com/engine/reference/builder/#/entrypoint

How to execute multiple commands using Docker Compose?

Source: https://intellipaat.com/community/19590/docker-run-multiple-commands-using-docker-compose-at-once?show=19597#a19597 If you need to run more than one daemon process, there’s a suggestion in the Docker documentation to use Supervisord in an un-detached mode so all the sub-daemons will output to the stdout.

How to run more than one service in a container?

If you need to run more than one service within a container, you can accomplish this in a few different ways. Put all of your commands in a wrapper script, complete with testing and debugging information. Run the wrapper script as your CMD.

How to run more than one daemon in Docker?

If you need to run more than one daemon process, there’s a suggestion in the Docker documentation to use Supervisord in an un-detached mode so all the sub-daemons will output to the stdout. From another SO question, I discovered you can redirect the child processes output to the stdout. That way you can see all the output!