Switch from CentOS 7 image to version 8

Change-Id: I56ebdef36b09cc576404cf8efde160d79ae246f3

tobiko/openstack/stacks/_centos.py

@@ -16,20 +16,16 @@ from __future__ import absolute_import
 import tobiko
 from tobiko import config
 from tobiko.openstack import glance
+from tobiko.openstack import nova
 from tobiko.openstack.stacks import _nova
 
 
 CONF = config.CONF
 
 
-if glance.has_lzma():
-    CENTOS_IMAGE_URL = (
-        'http://cloud.centos.org/centos/7/images/'
-        'CentOS-7-x86_64-GenericCloud.qcow2.xz')
-else:
-    CENTOS_IMAGE_URL = (
-        'http://cloud.centos.org/centos/7/images/'
-        'CentOS-7-x86_64-GenericCloud.qcow2c')
+CENTOS_IMAGE_URL = (
+    'http://cloud.centos.org/centos/8/x86_64/images/'
+    'CentOS-8-GenericCloud-8.1.1911-20200113.3.x86_64.qcow2')
 
 
 class CentosImageFixture(glance.URLGlanceImageFixture):
@@ -53,3 +49,10 @@ class CentosServerStackFixture(_nova.ServerStackFixture):
 
     #: Flavor used to create a Nova server instance
     flavor_stack = tobiko.required_setup_fixture(CentosFlavorStackFixture)
+
+    #: Install Python3 package by default
+    @property
+    def cloud_config(self):
+        return nova.cloud_config(
+            super(CentosServerStackFixture, self).cloud_config,
+            packages=['python3'])

tobiko/tests/functional/openstack/stacks/test_centos.py

@@ -15,8 +15,12 @@
 #    under the License.
 from __future__ import absolute_import
 
+import six
+import yaml
+
 import tobiko
 from tobiko.shell import sh
+from tobiko.openstack import nova
 from tobiko.openstack import stacks
 from tobiko.tests.functional.openstack.stacks import test_cirros
 
@@ -27,8 +31,19 @@ class CentosServerStackTest(test_cirros.CirrosServerStackTest):
     #: Stack of resources with a server attached to a floating IP
     stack = tobiko.required_setup_fixture(stacks.CentosServerStackFixture)
 
-    def test_python(self):
-        python_version = sh.execute(['python', '--version'],
-                                    ssh_client=self.stack.ssh_client).stderr
-        self.assertTrue(python_version.startswith('Python 2.7'),
+    def test_cloud_config(self):
+        cloud_config = self.stack.cloud_config
+        self.assertIn('python3', cloud_config['packages'])
+
+    def test_user_data(self):
+        user_data = self.stack.user_data
+        self.assertIsInstance(user_data, six.string_types)
+        self.assertTrue(user_data.startswith('#cloud-config\n'), user_data)
+        self.assertEqual(self.stack.cloud_config, yaml.load(user_data))
+
+    def test_python3(self):
+        nova.wait_for_cloud_init_done(ssh_client=self.stack.ssh_client)
+        python_version = sh.execute(['python3', '--version'],
+                                    ssh_client=self.stack.ssh_client).stdout
+        self.assertTrue(python_version.startswith('Python 3.'),
                         python_version)