Providers are entities which provide Plainbox with jobs, scripts and whitelists, as well as miscellaneous data that may be used by tests. They work by providing a configuration file which tells Plainbox the name and location of the provider. The provider needs to install this file to /usr/share/plainbox-providers-1 (alternatively they can be placed in ~/.local/share/plainbox-providers-1).
An example of such a file is:
[PlainBox Provider]
name = 2013.com.canonical:myprovider
location = /usr/lib/plainbox-providers-1/myprovider
description = My Plainbox test provider
The format for the provider name is an RFC3720 IQN. This is specified in RFC 3720.
Then the directory specified in location should contain at least one of the following directories: