Comments on: Vlad, RVM and Bundler sittin’ in a tree

By: Vidar

Vidar — Mon, 27 Sep 2010 09:05:02 +0000

On my machine I’m not using gemsets but I’m using vlad, rvm and rails3. All I did when I upgraded from my rails2 app was to add

remote_task :bundle do
run “cd #{release_path} && bundle install”
end

to my deploy.rb and add the PATH in .ssh/environment like this:

PATH=/home/vidar/.rvm/gems/ree-1.8.7-2010.02/bin:/home/vidar/.rvm/gems/ree-1.8.7-2010.02@global/bin:/home/vidar/.rvm/rubies/ree-1.8.7-2010.02/bin:/home/vidar/.r
vm/bin:/usr/local/bin:/usr/bin:/bin

and it just worked.

By: Ben

Ben — Mon, 20 Sep 2010 11:01:52 +0000

Also having the bundle install location is very handy

By: Ben

Ben — Mon, 20 Sep 2010 09:00:48 +0000

Thanks for showing the trust command!

I found a nice way to join and run the commands: http://pastie.org/1169652

By: Joey Beninghove

Joey Beninghove — Sun, 19 Sep 2010 01:00:47 +0000

@Wayne,
Very cool stuff man, thanks! I knew the .rvmrc file was just a shell script but didn’t know about that nifty command to generate one for you. Very handy!

By: Joey Beninghove

Joey Beninghove — Sun, 19 Sep 2010 00:57:23 +0000

@Colin,
Cool man, glad you liked it. I gotta say RVM has definitely spoiled me, which is why I couldn’t stand NOT having it on my servers as well. I’ve always been a huge proponent of portability when it comes to my apps and development environments, so RVM is just a no brainer for me.

And yeah, your article on I linked to is probably one of the best I’ve seen on that topic, so thank you!

By: Wayne E. Seguin

Wayne E. Seguin — Sun, 19 Sep 2010 00:34:38 +0000

Joey,

Regarding the .rvmrc file, the best way to generate this is to run:

$ rvm –rvmrc –create ree@ema

In the project root directory. This is optimized to load the environment file if it exists which is *much* faster than running through the entire RVM CLI parser.

Additionally each .rvmrc file is simply a shell script. This means that you can, for example, that you can run your bundle install on your server. Something like this:

… original .rvmrc generated content …

if [[ "$(hostname)" = "my-server-name" ]] ; then
bundle install
fi

Of course you can make this as elaborate and/or tailored to your environment as you need!

~Wayne

By: Colin MacKenzie IV

Colin MacKenzie IV — Sat, 18 Sep 2010 17:51:57 +0000

This is great stuff. I’ve been growing increasingly disillusioned with Capistrano lately (probably in direct correlation to the increasing complexity of my deploy scripts) and it’s good to find a simple, elegant solution. I was an overnight convert as RVM goes, and am considering running it in production just as you mentioned, so this will be a helpful resource — especially since I’m also beginning to understand the real power in using Bundler to manage gems.

Clearly there’s a huge plus (IMHO) to not having to “sudo” everything under the sun, but have you discovered any other major benefits / drawbacks to using RVM in production, or does this come largely down to preference?

BTW – thanks for the link. It’s good to know someone out there is gaining from my own meager contributions.

By: Joey Beninghove

Joey Beninghove — Fri, 17 Sep 2010 15:08:23 +0000

@Peter,
I’m afraid I don’t have a clue about running this on Windows. But I do know that under the hood it uses POpen4, which looks to be a cross-platform tool, so remote_task could maybe be modified to take advantage powershell, etc. Can’t say for sure though since I don’t use Windows.

By: Peter Mounce

Peter Mounce — Fri, 17 Sep 2010 09:07:50 +0000

In the context of running this to automate _Windows_ deployments, is there a way to replace the run-via-ssh part with, say, a run-via-powershell-remoting, or run-via-webdeploy-remote-execution?