Docker-sync: Be able to use environment variables in docker-sync.yml

[greggilbert]

You can use environment variables in docker-compose.yml, e.g.

services:
  api:
    build: ${API_ROOT}

It'd be great to be able to use these in docker-sync.yml as well.

# WEB_ROOT is /Users/me/Development/web
syncs:
  web-rsync:
    src: "${WEB_ROOT}"

Doing that right now throws this error:

rsync: change_dir "/Users/me/Development/web//Users/me/Development/web" failed: No such file or directory (2)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1249) [sender=3.1.2]

Should it be able to use env vars now, or is that a feature request?

[EugenMayer]

That would be a new feature, yet this is not implemented. I encourage you to try to contribute this, would be a great addition

[greggilbert]

My schedule's pretty jammed for the next few weeks, but maybe put a help wanted tag on this in case someone else wants to pick it up?

[EugenMayer]

@greggilbert there is nobody with a non-jammed schedule :) Anything like docker-sync is "on top" - it does never really come out of real work, its a tool.

Anyway added flag, lets see if someone is interested. I will, as for most FR, close the FR after 1 month of inactivity to ensure we do not get a huge backlog of items nobody really cares about.

Thanks for the suggestion!

[kbluescode]

@EugenMayer @greggilbert - I'm willing to take a stab at it, since my dev team is heavily invested in docker-sync in our development environment on mac. I can't promise an exact timetable, but I'll keep this issue updated as I work on it.

Side-note: Having just gone through the release docs and github issues for Docker for Mac again, I just want to say great job at still having the best solution to the volume file i/o problems facing Docker for Mac! Each developer currently runs a Rails app and 3 Ember apps (each with full source in volumes) all at once with almost native-speed live-reloading thanks to docker-sync!

[EugenMayer]

thanks for the kudos! Take your time and i am happy to review what you bring up, thank you!

[EugenMayer]

@kbluescode any progress on this already? Thanks!

[kbluescode]

@EugenMayer sorry, life stuff came up last weekend and was just able to get the initial research done. I'll get going on my fork this weekend.

[EugenMayer]

Great to hear! Looking forward to see what you can make up on this case.

[vranac]

@EugenMayer @kbluescode I took a stab at it, as well as my first time with Ruby code. Let me know how the PR can be improved.

[EugenMayer]

big thanks at @vranac, this little baby just made its way to release/0.2.0 - be sure to use the branch if you test it, also see that example https://github.com/EugenMayer/docker-sync-boilerplate/tree/master/dynamic-configuration-dotnev and the docs https://github.com/EugenMayer/docker-sync/wiki/Variable-Replace---Dynamic-Configuration

[greggilbert]

That's awesome, guys. Thanks!