Log configuration options on start-up

This is very convenient for debugging and is something ironic and
ironic-inspector already do.

Register SSL options earlier so that they're accounted for.

Change-Id: I56aca8eec1dfeb065ac657452a7076a9e3d17cc3

ironic_python_agent/api/app.py

@@ -16,7 +16,6 @@ import json
 
 from ironic_lib import metrics_utils
 from oslo_log import log
-from oslo_service import sslutils
 from oslo_service import wsgi
 import werkzeug
 from werkzeug import exceptions as http_exc
@@ -130,7 +129,6 @@ class Application(object):
     def start(self, tls_cert_file=None, tls_key_file=None):
         """Start the API service in the background."""
         if tls_cert_file and tls_key_file:
-            sslutils.register_opts(self._conf)
             self._conf.set_override('cert_file', tls_cert_file, group='ssl')
             self._conf.set_override('key_file', tls_key_file, group='ssl')
             use_tls = True

ironic_python_agent/cmd/agent.py

@@ -16,6 +16,7 @@ import sys
 
 from oslo_config import cfg
 from oslo_log import log
+from oslo_service import sslutils
 from oslo_utils import strutils
 
 from ironic_python_agent import agent
@@ -34,6 +35,13 @@ def run():
         ipa_debug = strutils.bool_from_string(ipa_debug)
         CONF.set_override('debug', ipa_debug)
     log.setup(CONF, 'ironic-python-agent')
+    # Used for TLS configuration
+    sslutils.register_opts(CONF)
+
+    logger = log.getLogger(__name__)
+    logger.debug("Configuration:")
+    CONF.log_opt_values(logger, log.DEBUG)
+
     agent.IronicPythonAgent(CONF.api_url,
                             agent.Host(hostname=CONF.advertise_host,
                                        port=CONF.advertise_port),

ironic_python_agent/tests/unit/test_agent.py

@@ -20,6 +20,7 @@ from ironic_lib import exception as lib_exc
 from oslo_concurrency import processutils
 from oslo_config import cfg
 from oslo_serialization import jsonutils
+from oslo_service import sslutils
 import pkg_resources
 from stevedore import extension
 
@@ -837,6 +838,7 @@ class TestAgentStandalone(ironic_agent_base.IronicAgentTest):
 
     def setUp(self):
         super(TestAgentStandalone, self).setUp()
+        sslutils.register_opts(CONF)
         self.agent = agent.IronicPythonAgent('https://fake_api.example.'
                                              'org:8081/',
                                              agent.Host(hostname='203.0.113.1',