Short form: --osapi_extensions_path is now gone; use --osapi_extension, which takes a different form of input.
Long form: Extensions have been refactored in a couple of ways. For one, the get_name(), get_alias(), get_description(), get_namespace(), and get_updated() accessor methods are all gone; set name, alias, namespace, and updated attributes instead, and use the docstring for the description. The more important change, for the purposes of nova.conf, is the replacement of --osapi_extensions_path. Before, this took a directory name, and all extensions from that directory were loaded. Now, you use one or more instances of --osapi_extension to name a callable located within the Python path. For instance, if you extension was Foxinsocks, located in foxinsocks.py, you would now use something like package.path.to.foxinsocks.Foxinsocks. Since this now loads only a single extension, you are now able to use --osapi_extension multiple times. Note that it is not necessary to name every single extension that's distributed with nova in nova.api.openstack.contrib; extensions in that directory will be automatically loaded as long as they comply with the previous naming convention (class needs the exact same name as the module, with the first character upper-cased). Further details: The argument to --osapi_extension must be a callable taking one argument--the extension manager. It must arrange to call the register() method of the extension manager, passing it an extension object (not class). The ExtensionDescriptor object has been extended with an __init__() method that does this, so all extensions inheriting from it are automatically covered unless they override __init__() and don't pass the argument to the superclass constructor. To auto-load the extensions in nova.api.openstack.contrib, the nova/api/openstack/contrib/__init__.py module now has a standard_extensions() callable which walks the directory tree rooted there and loads all other modules it finds, using the previously established conventions. This standard_extensions() function is simply added to the default list of extensions to load. -- Kevin L. Mitchell <kevin.mitch...@rackspace.com> This email may include confidential information. If you received it in error, please delete it. _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
