tmpfs-size in docker-compose

[adililhan]

Hi there,

my docker-compose.yml is like this:

version: "3"                                                                                                                                                                                                       
                                                                                                                                                                                                                   
services:                                                                                                                                                                                                          
    myservice:                                                                                                                                                                                                        
        build: ./mycode                                                                                                                                                                                               
        volumes:                                                                                                                                                                                                   
            - ./logs:/data/log                                                                                                                                                                                     
        ports:                                                                                                                                                                                                     
            - "80:80"                                                                                                                                                                                              
        tmpfs:                                                                                                                                                                                                     
            - /exampledir

that works. i'd like to specify the tmpfs size. There is a parameter in the Engine that is called as tmpfs-size *

I just had a look into the Docker Compose's instruction **. I didn't see such as parameter.

How can i set the tmpfs size through through the docker-compose.yml file? Is there a way to do it?

*: https://docs.docker.com/engine/admin/volumes/tmpfs/#specify-tmpfs-options
**: https://docs.docker.com/compose/compose-file/#tmpfs

[shin-]

This isn't possible currently, but we'll add it on the TODO list. Thanks!

[cvn]

This is now possible with the mountpoint:options syntax:

...
    tmpfs:
      - /tmp:size=1G

I found this in #3339. In the near future, it will also be possible with the long syntax, see #5637.

[funkyfuture]

@adililhan can you please close this issue?

[hazcod]

Is there a way to set default permissions this way?
e.g. let a non-root user use it.