Yes, we got the report about that bug and fixed sometime ago :)

Thanks guys

On Fri, Sep 4, 2009 at 6:16 AM, Keenan Brock<[email protected]> wrote:
> $ heroku config
> HIDE      => true
> RACK_ENV  => production
> $ heroku config:add MAINTAIN=true
> Adding config vars:
>   MAINTAIN => true
> Restarting app...done.
> $ heroku config
> HIDE      => true
> MAINTAIN  => true
> RACK_ENV  => production
> $ heroku config:remove MAINTAIN
> Removing MAINTAIN and restarting app...done.
> $ heroku config
> HIDE      => true
> RACK_ENV  => production
> $
> This is what I am seeing. Note the 'HIDE' variable
> maybe only for uppercase env variables?
> On Sep 4, 2009, at 2:24 AM, GreenAsJade wrote:
>
> The old thread on this is here:
>
> http://groups.google.com/group/heroku/browse_thread/thread/7963db5d7691f52e/
>
> Note that RACK_ENV always stayed set, in case that's what you saw.
>
>
> On Sep 4, 1:08 pm, Keenan Brock <[email protected]> wrote:
>
> Hi GaJ
>
> I just tested and it looks like it works the way you and I want. (it
>
> is additive so you can just specify the one variable)
>
> Not sure when they fixed it, but sure enough - we're all set on this
>
> one.
>
> --Keenan
>
> On Sep 3, 2009, at 11:26 PM, GreenAsJade wrote:
>
>
>
> It's a nice idea.
>
> One small fly in the ointment is that you can't individually set
>
> heroku configuraiton variables (unless this is fixed now?)
>
> Certainly last time I tried it, I found that any env var not set
>
> explicitly on the same config:add statement was removed.  IE
>
> config:add is not additive.
>
> This means that to implement the suggestion above, you would have to
>
> ensure that each time you turn on and off MAINTAIN you will have to be
>
> setting all the other vars as well.  A royal PITA.
>
> GaJ
>
> On Sep 4, 3:59 am, Keenan Brock <[email protected]> wrote:
>
> Hi Thomas,
>
> For passenger, there is a way to say if a file is present, then
>
> display a maintenance page. (using mod rewrite)
>
> This got me thinking.
>
> Heroku has environmental variables. So why not use an environmental
>
> variable to trigger a maintenance page?
>
> Maybe you can add a maintenance page to your site.
>
> e.g.:
>
> setup the blocker:
>
> config/routes.rb: (below Routes.draw but above the other entries)
>
> if ENV['MAINTAIN']=='true'
>
>    map.maintain '*path', :controller => 'application', :action =>
>
> 'show500'
>
> end
>
> -or-
>
> application_controller.rb
>
> if ENV['MAINTAIN']=='true'
>
>    before_filter :show500
>
> end
>
> and setup the renderer:
>
> app/controllers/application_controller.rb
>
> def show500
>
>   render :file => 'shared/maintain', :status => 500
>
>   false
>
> end
>
> To turn it on:
>
> heroku config:add MAINTAIN true
>
> The site will say "we'll be back soon"
>
> rake db:migrate
>
> other stuff
>
> heroku config:remove MAINTAIN
>
> Hope this meets your needs.
>
> I'll throw together a plugin when I get the chance. But long weekend
>
> suggests I'll have other things on my plate.
>
> --Keenan
>
> On Sep 1, 2009, at 2:25 PM, geolev wrote:
>
> I think this would be great. Does anyone know how to do this?
>
> On Aug 28, 2:52 am, Thomas Balthazar <[email protected]> wrote:
>
> Hello,
>
> I'd like to know what would be the best way to put an application
>
> into
>
> maintenance state.
>
> I want to deploy a major update (code + db structure + data
>
> migration)
>
> on a Production app, and I'd like to be sure that users don't use
>
> the
>
> app while I'm deploying and testing.
>
> As far as I know, as soon as I run 'git push heroku', the app is
>
> deployed and the users are able to access it.
>
> The problem is that I haven't run 'heroku rake db:migrate' yet, so
>
> the
>
> app that is online right now doesn't work.
>
> Also, once I've run 'heroku rake db:migrate', I'd like to be able
>
> to
>
> test the app to be really sure everything is ok.
>
> But the users are already using the app and if I made a mistake
>
> and I
>
> want to rollback, I can't, since users are already using the new DB
>
> structure.
>
> I know I have to test the app so it doesn't happen, I also have a
>
> Staging app to test everything, but, you know, sometimes things
>
> still
>
> go wrong.
>
> So, what would be the best approach to achieve an application
>
> 'maintenance' state?
>
> Thanks for your suggestions.
>
> Best,
>
> Thomas.
>
>
>
>
> >
>

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