Currently the pki_subsystem contains the subsystem name/type in upper case (e.g. CA) which then will be converted to lower case (e.g. ca) for use in various paths. The lower case conversion prevents it to be used in interpolation.

For example, the following path has to be defined in the code:

config.pki_master_dict['pki_subsystem_path'] =\
    os.path.join(config.pki_master_dict['pki_instance_path'],
    config.pki_master_dict['pki_subsystem'].lower())

Suppose we have separate parameters for the subsystem name and subsystem type, for example:

• pki_subsystem_name: CA
• pki_subsystem_type: ca

Now the path can be defined with interpolation:

pki_subsystem_path=%(pki_instance_path)s/%(pki_subsystem_type)s