Allow dependent image pull from insecure registry

PR #490 Provides the ability to pull from an insecure registry by passing --allow-insecure-ssl. This commit extends the work done in #490 and adds the ability to pass --allow-insecure-ssl to the up and run commands which will attempt to pull dependent images if they do not exist.

Signed-off-by: Tyler Rivera <riverat2@email.chop.edu>

tests/unit/service_test.py

@@ -6,6 +6,7 @@ from .. import unittest
 import mock
 
 import docker
+from requests import Response
 
 from fig import Service
 from fig.container import Container
@@ -14,6 +15,7 @@ from fig.service import (
     split_port,
     parse_volume_spec,
     build_volume_binding,
+    APIError,
 )
 
 
@@ -174,6 +176,21 @@ class ServiceTest(unittest.TestCase):
         self.mock_client.pull.assert_called_once_with('someimage:sometag', insecure_registry=True)
         mock_log.info.assert_called_once_with('Pulling foo (someimage:sometag)...')
 
+    @mock.patch('fig.service.log', autospec=True)
+    def test_create_container_from_insecure_registry(self, mock_log):
+        service = Service('foo', client=self.mock_client, image='someimage:sometag')
+        mock_response = mock.Mock(Response)
+        mock_response.status_code = 404
+        mock_response.reason = "Not Found"
+        Container.create = mock.Mock()
+        Container.create.side_effect = APIError('Mock error', mock_response, "No such image")
+        try:
+            service.create_container(insecure_registry=True)
+        except APIError:  # We expect the APIError because our service requires a non-existent image.
+            pass
+        self.mock_client.pull.assert_called_once_with('someimage:sometag', insecure_registry=True, stream=True)
+        mock_log.info.assert_called_once_with('Pulling image someimage:sometag...')
+
 
 class ServiceVolumesTest(unittest.TestCase):