Docker image and bash script for running compose in a container

[dnephin]

Resolves #169
Resolves #1662

The image is ~50Mb.

Thoughts?

[aanand]

Does everything work fine if $(pwd) is a subdir of $HOME and we get overlapping volume mounts?

[dnephin]

Ya, that doesn't seem to be a problem from what I can tell

[bfirsh]

Interesting.

Would this make Windows support easier? Paths, TTYs, etc... #1085

[dnephin]

It would run easily enough in cygwin I think, but I don't think windows comes with bash, right?

We could re-create this bash script in golang, and publish it as a statically linked binary, which might make it more portable.

[bfirsh]

Sorry - yes. Assuming we have a similar script or binary running on Windows that runs Compose in a container, would Compose running inside a container work on Windows?

[aanand]

Yes, it would. The other assumption is that volume mounting would 'just work', as it does on OS X (as long as you're within your home directory).

[thaJeztah]

What if we added compose-run to the image itself, using docker as the distribution mechanism, and a small install script to echo/output it, e.g.;

# To install the script wrapper, run
$ docker run --rm docker-compose install > /usr/local/bin/docker-compose
$ chmod +x /usr/local/bin/docker-compose

# Validate it's working
$ docker-compose --version
docker-compose version: 1.4.0rc3

[dnephin]

That's a cool idea, I think that could work.

[aanand]

That is a cool idea. We should probably put an explicit version tag in, so we can change the run script if we need to.

[bfirsh]

Could it be a separate image? If you install Compose with the Toolbox, the "install" command might be confusing.

[dnephin]

Ya, since this command is really just printing out the bash script, we could probably call it echo-run-script or something like that?

[thaJeztah]

The advantage of it being in the same image, is that the image is pulled during "install". The first "run" is instant then :-)

[mnowster]

@dnephin if you can do a rebase, I'll review.

[dnephin]

Rebased

[mnowster]

Minor edit: Can we make this a link to the alternative install section? Then we can remove the, 'below'.

[dnephin]

Ya, it seems like there is no standard way to do that with markdown? I guess I have to do something like this https://gohugo.io/extras/crossreferences/ , I'll try it out

[dnephin]

I tested it out locally, seems to work

[mnowster]

I would suggest Install as a container as a more descriptive header.

[mnowster]

I think this is missing a $ at the beginning so it'll get rendered as a command.

[dnephin]

Cool, I've made those changes

[mnowster]

LGTM