First experiments with Heroku

Heroku is an excellent cloud application platform. Because the Java platform has so much impact, I’ve never tried to write plain ruby applications. Now they have introduced Java, Node.js, Python, Scala and Clojure support. Cause I wanted to try Clojure anyway, this seems to be a nice place to run examples and prototypes. What I really like is the deep integration of Git into the project structure. Git commands are used to create / publish data on Heroku. Also the concept of omitting filesystem storage for scalability seems to be a big win.

I had problems installing the Heroku CLI on Debian (lenny) because of SSL Certificate problems. Heroku CLI developers commented out the “error” line with the important message, explaining what caused the error.

~> export RESTCLIENT_LOG=stdout
~> heroku create --stack cedar
Enter your Heroku credentials.
Email: xxx
Password:
RestClient.post "https://api.heroku.com/login", "password=hidden&username=kremers%40act-online.de", "Accept"=>"application/json", "Accept-Encoding"=>"gzip, deflate", "Content-Length"=>"50", "Content-Type"=>"application/x-www-form-urlencoded", "User-Agent"=>"heroku-gem/2.15.1", "X-Heroku-API-Version"=>"2", "X-Ruby-Platform"=>"i486-linux", "X-Ruby-Version"=>"1.8.7"
/usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/auth.rb:96:in `ask_for_credentials': undefined method `[]' for nil:NilClass (NoMethodError)
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/auth.rb:133:in `ask_for_and_save_credentials'
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/auth.rb:71:in `get_credentials'
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/auth.rb:51:in `user'
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/auth.rb:11:in `client'
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/command/base.rb:22:in `heroku'
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/command/apps.rb:122:in `create'
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/command.rb:114:in `send'
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/lib/heroku/command.rb:114:in `run'
from /usr/lib/ruby/gems/1.8/gems/heroku-2.15.1/bin/heroku:14
from /usr/bin/heroku:19:in `load'
from /usr/bin/heroku:19

After uncommenting the following Line (564 in /usr/lib/ruby/gems/1.8/gems/heroku-2.15.3/lib/heroku/client.rb):

error "WARNING: Unable to verify SSL certificate for #{host}\nTo disable SSL verification, run with HEROKU_SSL_VERIFY=disable"

After executing “export HEROKU_SSL_VERIFY=disable” everything worked.

December 9, 2011 | Filed Under Shared Experience 

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