Migration fails in heroku due to mailadmin

Question

I am deploying the application in heroku and the application is on rails 3.2 and I have active admin gem installed.

When I run rake db: migration failed due to the following error

== DeviseCreateAdminUsers: migrating ========================================= -- create_table(:admin_users) -> 0.0823s Sent mail to [e-mail] (3228ms) rake aborted! An error has occurred, this and all later migrations canceled: Connection refused - connect(2) 

I wonder what I need to do to fix this. It seems that in Devise gem or ActiveAdmin you need to send mail during the migration process and because it cannot, if it fails.

Answer 1

Try installing the Sendgrid addon:

 heroku addons:add sendgrid:starter 

If you are deploying to Aspen or Bamboo stacks this should work right away. If you are using the Cedar stack, you need to add an additional initializer:

 #config/initializers/mail.rb ActionMailer::Base.smtp_settings = { :address => 'smtp.sendgrid.net', :port => '587', :authentication => :plain, :user_name => ENV['SENDGRID_USERNAME'], :password => ENV['SENDGRID_PASSWORD'], :domain => 'heroku.com' } ActionMailer::Base.delivery_method = :smtp 

Taken from: http://devcenter.heroku.com/articles/sendgrid

Answer 2

This bothers me a bit:

 Connection refused - connect(2) 

Do you have a mail setup? Are you using SendGrid or the like? Remember that Heroku does not provide email services directly.

http://devcenter.heroku.com/articles/smtp