Convert a docker run command into a docker-compose

Question

I want to run this in my Docker Swarm:

docker run --rm -it progrium/stress --cpu 2 --io 1 --vm 2 --vm-bytes 128M --timeout 10s 

so I need a Docker-compose.yml

How should I use this docker image in a docker compose and pass those params ?

Answer 1

Converting a docker run command into a compose file

Composerize will help you convert run command to a compose partially.

To understand it better I have described the components of the docker-compose.yml here.

image - image used to run the container

name - name of the service or container

command - command you want to run after the container is up

volumes - volume(s) you want to mount

Converting the run command from above to docker-compose:

version: "2/3/3.3/3.6" # based on the docker-compose version you use services:    stress: # Service name, user defined       image: progrium/stress        command: '--cpu 2 --io 1 --vm 2 --vm-bytes 128M --timeout 10s' 

First two lines are common for any docker-compose file.

In docker-compose, the command allows the image to accept additional commands or options.

docker-compose.yml

version: "2" services:    stress:       image: progrium/stress       command: '--cpu 2 --io 1 --vm 2 --vm-bytes 128M --timeout 10s' 

Compose the file with docker-compose as:

docker-compose up -d 

• Multiple commands to the compose file:

  command: bash -c "cd app/ && npm start"

• Multi-line command to compose file:

  command: >   bash -c "cd app/    && npm start" 

<embed src="https://composerize.com/"  width="100%" height="700">

Answer 2

Just use this nifty little tool as a helper: https://composerize.com/

Or follow the manual steps highlighted in the previous answers...