Merge "Allow manual setting of Ironic API Version"

ironic_python_agent/config.py

@@ -282,6 +282,11 @@ cli_opts = [
                    'ipa-image-download-connection-retry-interval', 10),
                help='Interval (in seconds) between two attempts to establish '
                     'connection when downloading an image.'),
+    cfg.StrOpt('ironic_api_version',
+               default=APARAMS.get('ipa-ironic-api-version', None),
+               help='Ironic API version in format "x.x". If not set, version '
+                    'will be auto-detected. This is not a recommended '
+                    'configuration.')
 
 ]
 

ironic_python_agent/ironic_api_client.py

@@ -88,19 +88,31 @@ class APIClient(object):
         return {'X-OpenStack-Ironic-API-Version': '%d.%d' % version}
 
     def _get_ironic_api_version(self):
-        if not self._ironic_api_version:
+        if self._ironic_api_version:
+            return self._ironic_api_version
+
+        if CONF.ironic_api_version is not None:
             try:
-                response = self._request('GET', '/')
-                data = jsonutils.loads(response.content)
-                version = data['default_version']['version'].split('.')
+                version = CONF.ironic_api_version.split('.')
                 self._ironic_api_version = (int(version[0]), int(version[1]))
+                return self._ironic_api_version
             except Exception:
-                LOG.exception("An error occurred while attempting to discover "
-                              "the available Ironic API versions, falling "
-                              "back to using version %s",
-                              ".".join(map(str, MIN_IRONIC_VERSION)))
-                return MIN_IRONIC_VERSION
-        return self._ironic_api_version
+                LOG.exception("An error occurred while attempting to parse"
+                              "the ironic_api_version. Will fall back to "
+                              "auto-detection")
+
+        try:
+            response = self._request('GET', '/')
+            data = jsonutils.loads(response.content)
+            version = data['default_version']['version'].split('.')
+            self._ironic_api_version = (int(version[0]), int(version[1]))
+            return self._ironic_api_version
+        except Exception:
+            LOG.exception("An error occurred while attempting to discover "
+                          "the available Ironic API versions, falling "
+                          "back to using version %s",
+                          ".".join(map(str, MIN_IRONIC_VERSION)))
+            return MIN_IRONIC_VERSION
 
     def supports_auto_tls(self):
         return self._get_ironic_api_version() >= AGENT_VERIFY_CA_IRONIC_VERSION

ironic_python_agent/tests/unit/test_ironic_api_client.py

@@ -14,6 +14,7 @@
 
 from unittest import mock
 
+from oslo_config import cfg
 from oslo_serialization import jsonutils
 import requests
 
@@ -25,6 +26,8 @@ from ironic_python_agent import version
 
 API_URL = 'http://agent-api.ironic.example.org/'
 
+CONF = cfg.CONF
+
 
 class FakeResponse(object):
     def __init__(self, content=None, status_code=200, headers=None):
@@ -74,6 +77,16 @@ class TestBaseIronicPythonAgent(base.IronicAgentTest):
         self.assertEqual(ironic_api_client.MIN_IRONIC_VERSION,
                          self.api_client._get_ironic_api_version())
 
+    def test__get_ironic_api_version_set_via_conf(self):
+        self.api_client._ironic_api_version = None
+        CONF.set_override('ironic_api_version', "1.47")
+        self.api_client.session.request = mock.create_autospec(
+            self.api_client.session.request,
+            return_value=None)
+
+        self.assertEqual((1, 47), self.api_client._get_ironic_api_version())
+        self.assertFalse(self.api_client.session.request.called)
+
     def test__get_ironic_api_version_error(self):
         self.api_client._ironic_api_version = None
         self.api_client.session.request = mock.create_autospec(

releasenotes/notes/manually-configure-ironic-api-version-517afd0a423036ad.yaml

@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    Deployers in highly-secure environments can now manually set Ironic API
+    version instead of relying on unauthentication autodetection via
+    ipa-ironic-api-version on the kernel command line. This is not a
+    reccomended configuration.