"docker-compose run" should support `--volumes-from`

[jamshid]

Would be nice if docker-compose run supported all docker run features like --volumes-from.

E.g. I have a service defined in my docker-compose.yml that can backup a file system. I want to use it with arbitrary containers, not a static list of containers specified in docker-compose.yml's volumes_from.

$ docker-compose --version
docker-compose version: 1.3.2

Sorry this might be a dup of #136, but that issue got closed with a fix that doesn't seem to affect docker-compose run.

[gioppoluca]

+1
Having compose able to execute the whole set of docker run options is fundamental to be able to reproduce the same things done by hand but using the docker-compose.yml

[christianbundy]

👍 Just banged my head against the wall because of this for the better part of an hour.

[ifeatu]

Editing my last post, looks like what I needed was already in the docs

https://docs.docker.com/compose/yml/#volumes_from

[anibali]

+1
I would like to see volumes as well as volumes-from

[johnjelinek]

is it possible to create a new data volume for every new service you spin up?

For examples, I would like docker-compose to spin up 5 haproxy containers, one for each node in my docker swarm. Then I would like each one to attach to it's own data container.

[christianbundy]

@johnjelinek yeah, but the only way I know of doing that is creating five different services is docker-compose.yml with different volume paths.

[johnjelinek]

@christianbundy: why different volume paths? It seems that each data container should be able to handle the same path, right? Just different data in each data container.

[christianbundy]

Sorry, I meant different volume paths on the host, not different volume paths in the container. If you used the same volume paths on the host they'd end up sharing data.

[johnjelinek]

how would they share data? I only want one data container mount per haproxy container.

[gittycat]

I just ran into this limitation. I expected docker-compose run to allow us to define volumes to mount, just as docker run does.

[dobbs]

You can use environment variables in docker-compose.yml to achieve the same effect.

docker-compose.yml:

bar:
  image: ubuntu:trusty
  volumes:
    - /tmp
  command: ["touch", "/tmp/baz"]

foo:
  image: ubuntu:trusty
  volumes_from:
    - "$VOLUMES_FROM"

Then:

$ export VOLUMES_FROM=bar
$ docker-compose up bar
$ docker-compose run --rm foo ls -al /tmp
total 8
drwxrwxrwx  2 root root 4096 Feb  2 04:33 .
drwxr-xr-x 32 root root 4096 Feb  2 04:34 ..
-rw-r--r--  1 root root    0 Feb  2 04:33 baz

[gittycat]

@dobbs I actually use this technique too but it gets tedious. You also need to either document it for others, or wrap it in a script.

docker compose 1.10 will bring in some nice improvements. We'll be able to define volumes and networks in the compose file itself. I'm not sure if the volumes_from will be allowed as a param though. Just three more days to wait.