部署到Elastic beantalk的Rails应用程序无法连接到RDS

Question

I'm trying to deploy my app to Elastic Beanstalk by following this tutorial .

The app works if I use splite3 , but I can't connect the app to RDS.

I added group :production do gem 'mysql2' end in Gemfile, and this code to config/database.yml .

production:
  adapter: mysql2
  encoding: utf8
  database: <%= ENV['RDS_DB_NAME'] %>
  username: <%= ENV['RDS_USERNAME'] %>
  password: <%= ENV['RDS_PASSWORD'] %>
  host: <%= ENV['RDS_HOSTNAME'] %>
  port: <%= ENV['RDS_PORT'] %>

I added RDS in Elastic Beanstalk console .

But production.log shows error, that indicates DB connection fails.

-------------------------------------
/var/app/support/logs/production.log
-------------------------------------
I, [2014-02-09T16:01:56.520967 #29379]  INFO -- : Started GET "/" for xxx.xxx.xxx.xxx at 2014-02-09 16:01:56 +0000
I, [2014-02-09T16:01:56.620738 #29379]  INFO -- : Processing by PostsController#index as HTML
E, [2014-02-09T16:01:56.629835 #29379] ERROR -- : Mysql2::Error: Table 'ebdb.posts' doesn't exist: SELECT `posts`.* FROM `posts`
I, [2014-02-09T16:01:56.630802 #29379]  INFO -- :   Rendered posts/index.html.erb within layouts/application (4.3ms)
I, [2014-02-09T16:01:56.631068 #29379]  INFO -- : Completed 500 Internal Server Error in 10ms
F, [2014-02-09T16:01:56.633962 #29379] FATAL -- : 
ActionView::Template::Error (Mysql2::Error: Table 'ebdb.posts' doesn't exist: SELECT `posts`.* FROM `posts`):

eb status shows like this.

URL     : myAppURL
Status      : Ready
Health      : Green

RDS Database: AWSEBRDSDatabase | myDatabaseURL:port

Probably I miss something very basic. What should I do to fix this problem?

Answer 1

If your database is not named ebdb you could hardcode your database name in the YAML file:

production:
  adapter: mysql2
  encoding: utf8
  database: my_database_name
  username: <%= ENV['RDS_USERNAME'] %>
  password: <%= ENV['RDS_PASSWORD'] %>
  host: <%= ENV['RDS_HOSTNAME'] %>
  port: <%= ENV['RDS_PORT'] %>