Bundle and Gem Errors when deploying Sinatra app to heroku - ruby

Question

UPDATE
I did the following and this is the callstack I am still getting in the logs:
2012-08-06T12:30:57+00:00 heroku[slugc]: Slug compilation finished
2012-08-06T12:30:58+00:00 heroku[web.1]: Starting process with command `bundle exec thin start -R config.ru -e $RACK_ENV -p 56970`
2012-08-06T12:30:59+00:00 app[web.1]: bash: bundle: command not found
2012-08-06T12:31:00+00:00 heroku[web.1]: Process exited with status 127
2012-08-06T12:31:00+00:00 heroku[web.1]: State changed from starting to crashed
2012-08-06T12:31:08+00:00 heroku[router]: Error H10 (App crashed) -> GET arcane-garden-1058.herokuapp.com/ dyno= queue= wait= service= status=503 bytes=
2012-08-06T12:31:08+00:00 heroku[router]: Error H10 (App crashed) -> GET arcane-garden-1058.herokuapp.com/favicon.ico dyno= queue= wait= service= status=503 bytes=
2012-08-06T12:31:09+00:00 heroku[router]: Error H10 (App crashed) -> GET arcane-garden-1058.herokuapp.com/ dyno= queue= wait= service= status=503 bytes=
2012-08-06T12:31:10+00:00 heroku[router]: Error H10 (App crashed) -> GET arcane-garden-1058.herokuapp.com/favicon.ico dyno= queue= wait= service= status=503 bytes=
My Procfile file now looks like this:
root: = ::File.dirname(__FILE__)
require: ::File.join( root, 'app' )
web: bundle exec thin start -R config.ru -e $RACK_ENV -p $PORT
run: WPL.new
Gemfile looks like this:
source :rubygems
gem 'thin'
gem 'sinatra'
gem 'shotgun'
gem 'sinatra'
gem 'mongo'
gem 'json'
My app.rb looks like this now:
require 'shotgun'
require 'sinatra'
require 'mongo'
require 'json/pure'
class WPL < Sinatra::Application
db = Mongo::Connection.new.db('docs')
get '/' do
File.read(File.join('public', 'index.html'))
end
end
And config.ru looks like this:
require './app'
run WPL.new
So I'm trying to deploy my app and I've run into several issues. Everything works fine locally. I push the app to heroku and everything seems to be ok but when I check the logs it says it cant find command 'bundle'.
This is what my Procfile looks like.
web: bundle exec ruby app.rb -p $PORT
I tried removing bundle exec and just went with ruby app.rb -p $POST got further in the process but more errors.
The next set of errors I get are all gem related. It simply can't find any of the gems that are required. This is what my app.rb looks like.
require 'shotgun'
require 'sinatra'
require 'mongo'
require 'json/pure'
db = Mongo::Connection.new.db('docs')
get '/' do
File.read(File.join('public', 'index.html'))
end
My Gemfile looks like this.
source :rubygems
gem 'sinatra'
gem 'shotgun'
gem 'sinatra'
gem 'mongo'
gem 'json'
My config.ru looks like this.
require './app'
run Sinatra::Application
Running heroku run console also results in this error bundle: command not found
What am I missing?

Answer 1

Your Procfile is not using your config.ru.
For a Sinatra application, I would use a Procfile that looks something like this:
web: bundle exec thin start -R config.ru -e $RACK_ENV -p $PORT
This similar question might be some help too.

Answer 2

Not sure what happened but I just deleted my app on heroku and created a new one. Then it worked. I think when I created the app originally, heroku thought the app was a node app because I was missing my Procfile.