Question

I’m trying to deploy a Grails application on Openshift.
I’m deploying the app using a locally built war file.
Right now, I am using the url given by the rhc-app-show command in the DataSource.groovy file for my Database configurations.
Whenever I try with the environment variables of Openshift (eg. $OPENSHIFT_MYSQL_DB_HOST), it crashes. Any idea or pointers on how to use those in the config file?

Thanks.

Answer 1

I haven’t used OpenShift but Google led me to the FAQ which shows these environment variables:

OPENSHIFT_MYSQL_DB_HOST
OPENSHIFT_MYSQL_DB_PASSWORD
OPENSHIFT_MYSQL_DB_USERNAME
OPENSHIFT_MYSQL_DB_URL
OPENSHIFT_MYSQL_DB_PORT

so it looks like this would work:

production {
   dataSource {
      driverClassName = 'com.mysql.jdbc.Driver'
      dialect = org.hibernate.dialect.MySQL5InnoDBDialect

      String host = System.getenv('OPENSHIFT_MYSQL_DB_HOST')
      String port = System.getenv('OPENSHIFT_MYSQL_DB_PORT')
      String dbName = System.getenv('OPENSHIFT_APP_NAME')
      url = "jdbc:mysql://$host:$port/$dbName"
      username = System.getenv('OPENSHIFT_MYSQL_DB_USERNAME')
      password = System.getenv('OPENSHIFT_MYSQL_DB_PASSWORD')

      properties {
         ...
      }
   }
}

The missing bit is the database name – is that something that you would have available? I’m not sure of the format of OPENSHIFT_MYSQL_DB_URL but it looks like you might just be able to use url = "jdbc:${System.getenv('OPENSHIFT_MYSQL_DB_URL')}"