Add Digital Ocean Datasource.

This adds a DataSource for DigitalOcean's metadata service. The service is
documented at https://developers.digitalocean.com/metadata/ .

2 files changed, 126 insertions, 1 deletions

diff --git a/tests/unittests/test_datasource/test_digitalocean.py b/tests/unittests/test_datasource/test_digitalocean.py
new file mode 100644
index 00000000..04bee340
--- /dev/null
+++ b/tests/unittests/test_datasource/test_digitalocean.py
@@ -0,0 +1,126 @@
+#
+#    Copyright (C) 2014 Neal Shrader
+#
+#    Author: Neal Shrader <neal@digitalocean.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import httpretty
+import re
+
+from types import ListType
+from urlparse import urlparse
+
+from cloudinit import settings
+from cloudinit import helpers
+from cloudinit.sources import DataSourceDigitalOcean
+
+from .. import helpers as test_helpers
+
+# Abbreviated for the test
+DO_INDEX = """id
+           hostname
+           user-data
+           vendor-data
+           public-keys
+           region"""
+
+DO_MULTIPLE_KEYS = """ssh-rsa AAAAB3NzaC1yc2EAAAA... neal@digitalocean.com
+                   ssh-rsa AAAAB3NzaC1yc2EAAAA... neal2@digitalocean.com"""
+DO_SINGLE_KEY = "ssh-rsa AAAAB3NzaC1yc2EAAAA... neal@digitalocean.com"
+
+DO_META = {
+    '': DO_INDEX,
+    'user-data': '#!/bin/bash\necho "user-data"',
+    'vendor-data': '#!/bin/bash\necho "vendor-data"',
+    'public-keys': DO_SINGLE_KEY,
+    'region': 'nyc3',
+    'id': '2000000',
+    'hostname': 'cloudinit-test',
+}
+
+MD_URL_RE = re.compile(r'http://169.254.169.254/metadata/v1/.*')
+
+def _request_callback(method, uri, headers):
+    url_path = urlparse(uri).path
+    if url_path.startswith('/metadata/v1/'):
+        path = url_path.split('/metadata/v1/')[1:][0]
+    else:
+        path = None
+    if path in DO_META:
+        return (200, headers, DO_META.get(path))
+    else:
+        return (404, headers, '')
+
+
+class TestDataSourceDigitalOcean(test_helpers.HttprettyTestCase):
+
+    def setUp(self):
+        self.ds = DataSourceDigitalOcean.DataSourceDigitalOcean(
+            settings.CFG_BUILTIN, None,
+            helpers.Paths({}))
+        super(TestDataSourceDigitalOcean, self).setUp()
+
+    @httpretty.activate
+    def test_connection(self):
+        httpretty.register_uri(
+            httpretty.GET, MD_URL_RE,
+            body=_request_callback)
+
+        success = self.ds.get_data()
+        self.assertTrue(success)
+
+    @httpretty.activate
+    def test_metadata(self):
+        httpretty.register_uri(
+            httpretty.GET, MD_URL_RE,
+            body=_request_callback)
+        self.ds.get_data()
+
+        self.assertEqual(DO_META.get('user-data'),
+                         self.ds.get_userdata_raw())
+
+        self.assertEqual(DO_META.get('vendor-data'),
+                         self.ds.get_vendordata_raw())
+
+        self.assertEqual(DO_META.get('region'),
+                         self.ds.availability_zone)
+
+        self.assertEqual(DO_META.get('id'),
+                         self.ds.get_instance_id())
+
+        self.assertEqual(DO_META.get('hostname'),
+                         self.ds.get_hostname())
+
+        self.assertEqual('http://mirrors.digitalocean.com/',
+                         self.ds.get_package_mirror_info())
+
+        # Single key
+        self.assertEqual([DO_META.get('public-keys')],
+                         self.ds.get_public_ssh_keys())
+
+        self.assertIs(type(self.ds.get_public_ssh_keys()), ListType)
+
+    @httpretty.activate
+    def test_multiple_ssh_keys(self):
+        DO_META['public_keys'] = DO_MULTIPLE_KEYS
+        httpretty.register_uri(
+            httpretty.GET, MD_URL_RE,
+            body=_request_callback)
+        self.ds.get_data()
+
+        # Multiple keys
+        self.assertEqual(DO_META.get('public-keys').splitlines(),
+                         self.ds.get_public_ssh_keys())
+
+        self.assertIs(type(self.ds.get_public_ssh_keys()), ListType)
diff --git a/tests/unittests/test_datasource/test_openstack.py b/tests/unittests/test_datasource/test_openstack.py
index 8becbdd2..49894e51 100644
--- a/tests/unittests/test_datasource/test_openstack.py
+++ b/tests/unittests/test_datasource/test_openstack.py
@@ -19,7 +19,6 @@
 import copy
 import json
 import re
-import unittest
 
 from StringIO import StringIO