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@QQism
Created August 1, 2012 16:17
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dotCloud postinstall to overwrite database.yml for rails app
#!/usr/bin/env ruby
require 'yaml'
DB_ADAPTER = "postgresql"
DATABASE = "my_database"
ENCODING = 'utf8'
TEMPLATE = 'template0'
TIMEOUT = 5000
POOL = 5
def load_dotcloud_env
env = YAML.load(IO.read('/home/dotcloud/environment.yml'))
end
def overwrite_database_file
env = load_dotcloud_env
database = {
'production' => {
'adapter' => DB_ADAPTER,
'database' => DATABASE,
'host' => env['DOTCLOUD_DB_SQL_HOST'],
'port' => env['DOTCLOUD_DB_SQL_PORT'].to_i,
'username' => env['DOTCLOUD_DB_SQL_LOGIN'],
'password' => env['DOTCLOUD_DB_SQL_PASSWORD'],
'encoding' => ENCODING,
'template' => TEMPLATE,
'timeout' => TIMEOUT,
'pool' => POOL
}
}
File.open('config/database.yml', 'w') do |file|
file.write database.to_yaml
end
end
puts '=== Start to overwrite database.yml ==='
overwrite_database_file
puts '=== Finished overwriting! ==='
@QQism
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QQism commented Aug 1, 2012

This file is intended to use with PostgreSQL with default dotCloud database settings, but also can be modified to fit with MySQL as well.
Don't forget to make this file executable by chmod +x postinstall

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