title: environment variables with Redis
body: <p>I have a Rails app that sends email notifications using Gmail (it's currently only in development mode). I set the username and password with environment variables like this</p>
  
  <pre><code>GMAIL_USERNAME='me@gmail.com' GMAIL_PASSWORD='mygreatpassword' rails s
  </code></pre>
  
  <p>and everything works fine. However, after I added sidekiq/redis in order to send emails as a background job, I'm getting an authentication error when it tries to send the email. </p>
  
  <pre><code>2013-04-24T19:26:45Z 887 TID-ovdxl6qxs WARN: {"retry"=&gt;true, "queue"=&gt;"default", "timeout"=&gt;30, "class"=&gt;"Sidekiq::Extensions::DelayedMailer", "args"=&gt;["---\n- !ruby/class 'Notifier'\n- :answer_updated\n- - !ruby/object:Answer\n    attributes:\n      id: 32\n      content: Billy\n      accepted: \n      user_id: 37\n      question_id: 38\n      created_at: 2013-04-24 19:26:44.948753000 Z\n      updated_at: 2013-04-24 19:26:44.948753000 Z\n  - !ruby/object:User\n    attributes:\n      id: 35\n      email: emailaddress@gmail.com\n      encrypted_password: $2a$10$5XLIJ6F1KNPOjbTUX3fqROE0oDHgf/WnSGE4OhCm7g.pzN1bzLS0q\n      reset_password_token: \n      reset_password_sent_at: \n      remember_created_at: 2013-04-19 19:28:52.926838000 Z\n      sign_in_count: 9\n      current_sign_in_at: 2013-04-24 19:17:31.694245000 Z\n      last_sign_in_at: 2013-04-22 18:24:29.946303000 Z\n      current_sign_in_ip: 127.0.0.1\n      last_sign_in_ip: 127.0.0.1\n      created_at: 2013-04-18 19:28:09.569895000 Z\n      updated_at: 2013-04-24 19:17:31.695692000 Z\n      name: emailaddress@gmail.com\n      lawyer: \n      student: \n"], "jid"=&gt;"4c9cb74b27080c4df581715c", "error_message"=&gt;"530-5.5.1 Authentication Required. Learn more at\n", "error_class"=&gt;"Net::SMTPAuthenticationError", "failed_at"=&gt;2013-04-24 19:26:45 UTC, "retry_count"=&gt;0}
  2013-04-24T19:26:45Z 887 TID-ovdxl6qxs WARN: 530-5.5.1 Authentication Required. Learn more at
  </code></pre>
  
  <p>After adding sidekiq, I started the rails server the same way, with the GMAIL_USERNAME and GMAIL_PASSWORD environment variables preceding the 'rails s' command. I also started redis this way</p>
  
  <pre><code>redis-server /usr/local/etc/redis.conf
  </code></pre>
  
  <p>and sidekiq like this</p>
  
  <pre><code>bundle exec sidekiq
  </code></pre>
  
  <p>Then, after adding redis, I used sidekiq's 'delay' method instead of 'deliver' to send the message.  However, as noted above, I'm getting the authentication error message.</p>
  
  <pre><code>    def after_create(answer)
        answer.question.watchers.each do |user|
        Notifier.delay.answer_updated(answer, user)
        # Notifier.answer_updated(answer, user).deliver  
      end 
  </code></pre>
  
  <p>Update:</p>
  
  <p>These are my config action mailer settings</p>
  
  <pre><code>config.action_mailer.smtp_settings = {
    address: "smtp.gmail.com",
    port: 587,
    domain: "localhost:3000",
    authentication: "plain",
    enable_starttls_auto: true,
    user_name: ENV["GMAIL_USERNAME"],
    password: ENV["GMAIL_PASSWORD"]
  }
  </code></pre>
  
  <p>This is what it says after "learn more at"</p>
  
  <pre><code>2013-04-25T00:11:30Z 6904 TID-owuofcbno WARN: /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/net/smtp.rb:948:in `check_response'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/net/smtp.rb:917:in `getok'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/net/smtp.rb:832:in `mailfrom'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/net/smtp.rb:659:in `send_message'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/mail-2.4.4/lib/mail/network/delivery_methods/smtp.rb:145:in `block in deliver!'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/net/smtp.rb:520:in `start'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/mail-2.4.4/lib/mail/network/delivery_methods/smtp.rb:144:in `deliver!'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/mail-2.4.4/lib/mail/message.rb:2034:in `do_delivery'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/mail-2.4.4/lib/mail/message.rb:229:in `block in deliver'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/actionmailer-3.2.12/lib/action_mailer/base.rb:415:in `block in deliver_mail'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.12/lib/active_support/notifications.rb:123:in `block in instrument'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.12/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/activesupport-3.2.12/lib/active_support/notifications.rb:123:in `instrument'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/actionmailer-3.2.12/lib/action_mailer/base.rb:413:in `deliver_mail'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/mail-2.4.4/lib/mail/message.rb:229:in `deliver'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/extensions/action_mailer.rb:23:in `perform'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/processor.rb:49:in `block (3 levels) in process'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:109:in `call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:109:in `block in invoke'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/server/timeout.rb:11:in `block in call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/timeout.rb:68:in `timeout'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/server/timeout.rb:10:in `call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:111:in `block in invoke'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/server/active_record.rb:6:in `call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:111:in `block in invoke'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/server/retry_jobs.rb:50:in `call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:111:in `block in invoke'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/server/logging.rb:11:in `block in call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/logging.rb:22:in `with_context'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/server/logging.rb:7:in `call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:111:in `block in invoke'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:114:in `call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:114:in `invoke'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/processor.rb:48:in `block (2 levels) in process'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/processor.rb:87:in `stats'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/sidekiq-2.10.1/lib/sidekiq/processor.rb:47:in `block in process'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/celluloid-0.12.4/lib/celluloid/calls.rb:23:in `call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/celluloid-0.12.4/lib/celluloid/calls.rb:23:in `public_send'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/celluloid-0.12.4/lib/celluloid/calls.rb:23:in `dispatch'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/celluloid-0.12.4/lib/celluloid/future.rb:18:in `block in initialize'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/celluloid-0.12.4/lib/celluloid/internal_pool.rb:48:in `call'
  /Users/me/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/celluloid-0.12.4/lib/celluloid/internal_pool.rb:48:in `block in create'
  </code></pre>