Allow to use before_script in configuration file

[Emmanuel Quentin]

Use before_script : and check

• if it's a file : run it at the startup
• otherwise execute the command in a Docker RUN

[Francois Zaninotto]

You may have problems ordering before_scripts on several containers. Example:

1. I must populate a db from the db container
2. I must setup a webapp on a php container

How can I execute scripts on different containers in a certain order?

[Emmanuel Quentin]

The before_script will behave like the Travis one and will be put in the DockerFile. With the configuration :

containers:
    db:
        type: mysql
        ports:
            3306: 3306
        custom:
            before_script: mysql -e "CREATE DATABASE symfony CHARACTER SET utf8 COLLATE utf8_general_ci;"

The script will be executed only once before the boot of the mysql daemon.

If the before script is too huge, it can be put in a bin/setup-mysql.sh and will be executed the same way with :

custom:
    before_script: setup-mysql.sh