AliYun: Add new datasource for Ali-Cloud ECS

Support AliYun(Ali-Cloud ECS). This datasource inherits from EC2,
the main difference is the meta-server address is changed to
100.100.100.200.

The datasource behaves similarly to EC2 and relies on network polling.
As such, it is not enabled by default.

1 files changed, 148 insertions, 0 deletions

diff --git a/tests/unittests/test_datasource/test_aliyun.py b/tests/unittests/test_datasource/test_aliyun.py
new file mode 100644
index 00000000..6f1de072
--- /dev/null
+++ b/tests/unittests/test_datasource/test_aliyun.py
@@ -0,0 +1,148 @@
+import functools
+import httpretty
+import os
+
+from .. import helpers as test_helpers
+from cloudinit import helpers
+from cloudinit.sources import DataSourceAliYun as ay
+
+DEFAULT_METADATA = {
+    'instance-id': 'aliyun-test-vm-00',
+    'eipv4': '10.0.0.1',
+    'hostname': 'test-hostname',
+    'image-id': 'm-test',
+    'launch-index': '0',
+    'mac': '00:16:3e:00:00:00',
+    'network-type': 'vpc',
+    'private-ipv4': '192.168.0.1',
+    'serial-number': 'test-string',
+    'vpc-cidr-block': '192.168.0.0/16',
+    'vpc-id': 'test-vpc',
+    'vswitch-id': 'test-vpc',
+    'vswitch-cidr-block': '192.168.0.0/16',
+    'zone-id': 'test-zone-1',
+    'ntp-conf': {'ntp_servers': [
+                 'ntp1.aliyun.com',
+                 'ntp2.aliyun.com',
+                 'ntp3.aliyun.com']},
+    'source-address': ['http://mirrors.aliyun.com',
+                       'http://mirrors.aliyuncs.com'],
+    'public-keys': {'key-pair-1': {'openssh-key': 'ssh-rsa AAAAB3...'},
+                    'key-pair-2': {'openssh-key': 'ssh-rsa AAAAB3...'}}
+}
+
+DEFAULT_USERDATA = """\
+#cloud-config
+
+hostname: localhost"""
+
+
+def register_mock_metaserver(base_url, data):
+    def register_helper(register, base_url, body):
+        if isinstance(body, str):
+            register(base_url, body)
+        elif isinstance(body, list):
+            register(base_url.rstrip('/'), '\n'.join(body) + '\n')
+        elif isinstance(body, dict):
+            vals = []
+            for k, v in body.items():
+                if isinstance(v, (str, list)):
+                    suffix = k.rstrip('/')
+                else:
+                    suffix = k.rstrip('/') + '/'
+                vals.append(suffix)
+                url = base_url.rstrip('/') + '/' + suffix
+                register_helper(register, url, v)
+            register(base_url, '\n'.join(vals) + '\n')
+
+    register = functools.partial(httpretty.register_uri, httpretty.GET)
+    register_helper(register, base_url, data)
+
+
+class TestAliYunDatasource(test_helpers.HttprettyTestCase):
+    def setUp(self):
+        super(TestAliYunDatasource, self).setUp()
+        cfg = {'datasource': {'AliYun': {'timeout': '1', 'max_wait': '1'}}}
+        distro = {}
+        paths = helpers.Paths({})
+        self.ds = ay.DataSourceAliYun(cfg, distro, paths)
+        self.metadata_address = self.ds.metadata_urls[0]
+        self.api_ver = self.ds.api_ver
+
+    @property
+    def default_metadata(self):
+        return DEFAULT_METADATA
+
+    @property
+    def default_userdata(self):
+        return DEFAULT_USERDATA
+
+    @property
+    def metadata_url(self):
+        return os.path.join(self.metadata_address,
+                            self.api_ver, 'meta-data') + '/'
+
+    @property
+    def userdata_url(self):
+        return os.path.join(self.metadata_address,
+                            self.api_ver, 'user-data')
+
+    def regist_default_server(self):
+        register_mock_metaserver(self.metadata_url, self.default_metadata)
+        register_mock_metaserver(self.userdata_url, self.default_userdata)
+
+    def _test_get_data(self):
+        self.assertEqual(self.ds.metadata, self.default_metadata)
+        self.assertEqual(self.ds.userdata_raw,
+                         self.default_userdata.encode('utf8'))
+
+    def _test_get_sshkey(self):
+        pub_keys = [v['openssh-key'] for (_, v) in
+                    self.default_metadata['public-keys'].items()]
+        self.assertEqual(self.ds.get_public_ssh_keys(), pub_keys)
+
+    def _test_get_iid(self):
+        self.assertEqual(self.default_metadata['instance-id'],
+                         self.ds.get_instance_id())
+
+    def _test_host_name(self):
+        self.assertEqual(self.default_metadata['hostname'],
+                         self.ds.get_hostname())
+
+    @httpretty.activate
+    def test_with_mock_server(self):
+        self.regist_default_server()
+        self.ds.get_data()
+        self._test_get_data()
+        self._test_get_sshkey()
+        self._test_get_iid()
+        self._test_host_name()
+
+    def test_parse_public_keys(self):
+        public_keys = {}
+        self.assertEqual(ay.parse_public_keys(public_keys), [])
+
+        public_keys = {'key-pair-0': 'ssh-key-0'}
+        self.assertEqual(ay.parse_public_keys(public_keys),
+                         [public_keys['key-pair-0']])
+
+        public_keys = {'key-pair-0': 'ssh-key-0', 'key-pair-1': 'ssh-key-1'}
+        self.assertEqual(set(ay.parse_public_keys(public_keys)),
+                         set([public_keys['key-pair-0'],
+                             public_keys['key-pair-1']]))
+
+        public_keys = {'key-pair-0': ['ssh-key-0', 'ssh-key-1']}
+        self.assertEqual(ay.parse_public_keys(public_keys),
+                         public_keys['key-pair-0'])
+
+        public_keys = {'key-pair-0': {'openssh-key': []}}
+        self.assertEqual(ay.parse_public_keys(public_keys), [])
+
+        public_keys = {'key-pair-0': {'openssh-key': 'ssh-key-0'}}
+        self.assertEqual(ay.parse_public_keys(public_keys),
+                         [public_keys['key-pair-0']['openssh-key']])
+
+        public_keys = {'key-pair-0': {'openssh-key': ['ssh-key-0',
+                                                      'ssh-key-1']}}
+        self.assertEqual(ay.parse_public_keys(public_keys),
+                         public_keys['key-pair-0']['openssh-key'])