Add cloudtaf framework

[ta/cloudtaf.git] / libraries / cluster / envcreator.py

diff --git a/libraries/cluster/envcreator.py b/libraries/cluster/envcreator.py
new file mode 100644 (file)
index 0000000..9ee0936
--- /dev/null
+++ b/libraries/cluster/envcreator.py
@@ -0,0 +1,92 @@
+# Copyright 2019 Nokia
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from collections import namedtuple
+import yaml
+from crl.remotesession.envcreatorbase import EnvCreatorBase
+
+
+class EnvCreator(EnvCreatorBase):
+    _openrc = 'openrc'
+
+    def __init__(self, remotesession_factory, usermanager):
+        self._remotesession_factory = remotesession_factory
+        self._usermanager = usermanager
+        self._openrc_dict_cache = None
+        self._um_admin_creds_cache = None
+
+    def create(self, target, envname):
+        openrc_dict = self._get_openrc_dict(target)
+        if envname.startswith('set_password:'):
+            self._set_password_and_update_dict(envname, openrc_dict)
+        elif envname == 'um_admin':
+            self._update_openrc_dict_um_admin(openrc_dict)
+        elif envname != 'admin':
+            self._create_user_and_update_dict(envname, openrc_dict=openrc_dict)
+
+        return openrc_dict
+
+    @property
+    def _um_admin_creds(self):
+        if self._um_admin_creds_cache is None:
+            self._setup_um_admin_creds_cache()
+        return self._um_admin_creds_cache
+
+    def _set_password_and_update_dict(self, envname, openrc_dict):
+        roles = self._get_roles_for_envname(envname)
+        userrecord = self._usermanager.get_user_and_set_password(*roles)
+        self._update_openrc_dict(openrc_dict, userrecord)
+
+    @staticmethod
+    def _get_roles_for_envname(envname):
+        r = envname.split(':')[1]
+        return [role.strip() for role in r.split(',')] if r else []
+
+    @staticmethod
+    def _update_openrc_dict(openrc_dict, userrecord):
+        openrc_dict.update({'OS_USERNAME': userrecord.username,
+                            'OS_PASSWORD': userrecord.password,
+                            'OS_TENANT_NAME': 'infrastructure',
+                            'OS_PROJECT_NAME': 'infrastructure'})
+
+    def _update_openrc_dict_um_admin(self, openrc_dict):
+        openrc_dict.update({'OS_USERNAME': self._um_admin_creds.username,
+                            'OS_PASSWORD': self._um_admin_creds.password,
+                            'OS_TENANT_NAME': 'infrastructure',
+                            'OS_PROJECT_NAME': 'infrastructure'})
+
+    def _create_user_and_update_dict(self, envname, openrc_dict):
+        roles = [role.strip() for role in envname.split(',')]
+        userrecord = self._usermanager.create_user_with_roles(*roles)
+        self._update_openrc_dict(openrc_dict, userrecord)
+
+    def _get_openrc_dict(self, target):
+        remotesession = self._remotesession_factory()
+        if self._openrc_dict_cache is None:
+            self._openrc_dict_cache = (
+                remotesession.get_source_update_env_dict(self._openrc,
+                                                         target=target))
+        return self._openrc_dict_cache.copy()
+
+    def _setup_um_admin_creds_cache(self):
+        rem = self._remotesession_factory()
+        res = rem.execute_command_in_target('cat /etc/userconfig/user_config.yaml')
+        u = yaml.load(res.stdout, Loader=yaml.Loader)
+        users = u['users']
+        self._um_admin_creds_cache = Credentials(username=users['initial_user_name'],
+                                                 password=users['initial_user_password'])
+
+
+class Credentials(namedtuple('Credentials', ['username', 'password'])):
+    pass