Add datasource for ZStack platform.

Zstack platform provides a AWS Ec2 metadata service, and
identifies their platform to the guest by setting the 'chassis asset tag'
to a string that ends with '.zstack.io'.

LP: #1841181

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/unittests/test_datasource/test_ec2.py b/tests/unittests/test_datasource/test_ec2.py
index 1ec8e009..6fabf258 100644
--- a/tests/unittests/test_datasource/test_ec2.py
+++ b/tests/unittests/test_datasource/test_ec2.py
@@ -662,4 +662,32 @@ class TestConvertEc2MetadataNetworkConfig(test_helpers.CiTestCase):
                 expected,
                 ec2.convert_ec2_metadata_network_config(self.network_metadata))
 
+
+class TesIdentifyPlatform(test_helpers.CiTestCase):
+
+    def collmock(self, **kwargs):
+        """return non-special _collect_platform_data updated with changes."""
+        unspecial = {
+            'asset_tag': '3857-0037-2746-7462-1818-3997-77',
+            'serial': 'H23-C4J3JV-R6',
+            'uuid': '81c7e555-6471-4833-9551-1ab366c4cfd2',
+            'uuid_source': 'dmi',
+        }
+        unspecial.update(**kwargs)
+        return unspecial
+
+    @mock.patch('cloudinit.sources.DataSourceEc2._collect_platform_data')
+    def test_identify_zstack(self, m_collect):
+        """zstack should be identified if cassis-asset-tag ends in .zstack.io
+        """
+        m_collect.return_value = self.collmock(asset_tag='123456.zstack.io')
+        self.assertEqual(ec2.CloudNames.ZSTACK, ec2.identify_platform())
+
+    @mock.patch('cloudinit.sources.DataSourceEc2._collect_platform_data')
+    def test_identify_zstack_full_domain_only(self, m_collect):
+        """zstack asset-tag matching should match only on full domain boundary.
+        """
+        m_collect.return_value = self.collmock(asset_tag='123456.buzzstack.io')
+        self.assertEqual(ec2.CloudNames.UNKNOWN, ec2.identify_platform())
+
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