Deployment conflict question - Capistrano

Message from discussion Deployment conflict question
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Message-ID: <4A4CFD05.2090...@gmail.com>
Date: Thu, 02 Jul 2009 14:31:33 -0400
From: Joe McDonagh <joseph.e.mcdon...@gmail.com>
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To: capistrano@googlegroups.com
Subject: Re: [capistrano] Deployment conflict question
References: <ef3b7c5c-6b2d-443e-9fe1-a486b4f8d...@h18g2000yqj.googlegroups.com>
In-Reply-To: <ef3b7c5c-6b2d-443e-9fe1-a486b4f8d...@h18g2000yqj.googlegroups.com>

cswebgrl wrote:
> Hi.
>
> I tried to deploy new Rails app code to a production server the other
> day and took down the live site in production.  I'd like to avoid this
> in the future.  Something happened in the process that affected the
> live site.  The error log showed that fastthread was not found.  I had
> to go into the fastthread gem and run setup.rb.  Then it told me that
> Rails was not installed so I had to do a gem install Rails.  Then
> there were other gems that were needed by the application and not
> found so I had to reinstall those too.
>
> I have my own staging server that this all worked on, but the staging
> server is able to serve multiple sites so it is not an exact replicate
> of the client's production box.  The Apache setup is such that only
> one site can be served from this machine - the document root in Apache
> is /project/public.
>
> I've got a couple of questions. 1- Any idea why gems would need to be
> reinstalled?  2- Can I deploy Capistrano without restarting Passenger
> to put the code onto the production server and then once it's all
> there, change the document root in Apache then do a deploy with the
> Passenger restart?
>
>
> Thanks,
> Cindy
>
>
> >
>   
Hi Cindy, did the client mix and match operating system-native packages 
and rubygems? That can cause problems, and it wouldn't surprise me if it 
caused this one.

I'm still kind of a noob with cap, so I'm not sure about question 2...

 Have you thought about using virtualization to create real staging 
environments for your clients? It's a pretty fundamental flaw if your 
staging environment is not an exact replica of the production 
environment (save the staged code).

-- 
Joe McDonagh
Operations Engineer
www.colonfail.com