Docker compose use

[Buongiordanno]

Hi, how do i pass args (e.g. --cpu 2 --io 1) in a docker-compose.yml ?

version: '2'
services:
app01:
image: progrium/stress
cpu: 2
io: 1
vm: 2
vm-bytes: 128M
timeout: 10s

this is what i've done, but it doesnt work, help me please.

[JoshKeegan]

I think you could use command: https://docs.docker.com/compose/compose-file/#command
Although you may have to also pass the entrypoint, e.gL

services:
  foo:
    command: /usr/bin/stress --verbose --cpu 2

I haven't tried this though :)

[lbogdan]

There's a few gotchas here:

• command has to be an array of arguments
• arguments are appended to the entrypoint, so you don't need to specify that
• arguments have to be strings, so you have to quote numbers:

# docker-compose.yaml
version: '3'

services:
  stress:
    image: progrium/stress
    command: [--cpu, "2"]