diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index f228040..2cc4b83 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -127,16 +127,16 @@
 unexpected failures in some tests.
 
 
-Non-locking test accounts (aka credentials config options)
-""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+Legacy test accounts (aka credentials config options)
+"""""""""""""""""""""""""""""""""""""""""""""""""""""
 **Starting in the Liberty release this mechanism was deprecated and will be
 removed in a future release**
 
 When Tempest was refactored to allow for locking test accounts, the original
 non-tenant isolated case was converted to internally work similarly to the
-accounts.yaml file. This mechanism was then called the non-locking test accounts
-provider. To use the non-locking test accounts provider you can specify the sets
-of credentials in the configuration file like detailed above with following 9
+accounts.yaml file. This mechanism was then called the legacy test accounts
+provider. To use the legacy test accounts provider you can specify the sets of
+credentials in the configuration file like detailed above with following 9
 options in the identity section:
 
  #. username
diff --git a/tempest/api/identity/admin/v3/test_trusts.py b/tempest/api/identity/admin/v3/test_trusts.py
index fac8826..a8b0af9 100644
--- a/tempest/api/identity/admin/v3/test_trusts.py
+++ b/tempest/api/identity/admin/v3/test_trusts.py
@@ -18,7 +18,7 @@
 
 from tempest.api.identity import base
 from tempest import clients
-from tempest.common import cred_provider
+from tempest.common import credentials_factory as common_creds
 from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
@@ -89,7 +89,7 @@
         self.assertIsNotNone(self.trustee_user_id)
 
         # Initialize a new client with the trustor credentials
-        creds = cred_provider.get_credentials(
+        creds = common_creds.get_credentials(
             identity_version='v3',
             username=self.trustor_username,
             password=self.trustor_password,
diff --git a/tempest/api/identity/base.py b/tempest/api/identity/base.py
index 95826b0..526b44d 100644
--- a/tempest/api/identity/base.py
+++ b/tempest/api/identity/base.py
@@ -16,7 +16,7 @@
 from oslo_log import log as logging
 from tempest_lib import exceptions as lib_exc
 
-from tempest.common import cred_provider
+from tempest.common import credentials_factory as common_creds
 from tempest.common.utils import data_utils
 from tempest import config
 import tempest.test
@@ -195,11 +195,11 @@
 
         @property
         def test_credentials(self):
-            return cred_provider.get_credentials(username=self.test_user,
-                                                 user_id=self.user['id'],
-                                                 password=self.test_password,
-                                                 tenant_name=self.test_tenant,
-                                                 tenant_id=self.tenant['id'])
+            return common_creds.get_credentials(username=self.test_user,
+                                                user_id=self.user['id'],
+                                                password=self.test_password,
+                                                tenant_name=self.test_tenant,
+                                                tenant_id=self.tenant['id'])
 
         def setup_test_user(self):
             """Set up a test user."""
diff --git a/tempest/api/orchestration/stacks/test_neutron_resources.py b/tempest/api/orchestration/stacks/test_neutron_resources.py
index 070150d..bf28da4 100644
--- a/tempest/api/orchestration/stacks/test_neutron_resources.py
+++ b/tempest/api/orchestration/stacks/test_neutron_resources.py
@@ -16,7 +16,7 @@
 import netaddr
 
 from tempest.api.orchestration import base
-from tempest import clients
+from tempest.common import credentials_factory as credentials
 from tempest.common.utils import data_utils
 from tempest import config
 from tempest import exceptions
@@ -38,7 +38,7 @@
     @classmethod
     def setup_credentials(cls):
         super(NeutronResourcesTestJSON, cls).setup_credentials()
-        cls.os = clients.Manager()
+        cls.os = credentials.ConfiguredUserManager()
 
     @classmethod
     def setup_clients(cls):
diff --git a/tempest/clients.py b/tempest/clients.py
index 84e8544..03e6930 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -38,7 +38,6 @@
 from tempest_lib.services.identity.v2.token_client import TokenClient
 from tempest_lib.services.identity.v3.token_client import V3TokenClient
 
-from tempest.common import cred_provider
 from tempest.common import negative_rest_client
 from tempest import config
 from tempest import exceptions
@@ -174,7 +173,7 @@
     }
     default_params_with_timeout_values.update(default_params)
 
-    def __init__(self, credentials=None, service=None):
+    def __init__(self, credentials, service=None):
         super(Manager, self).__init__(credentials=credentials)
 
         self._set_compute_clients()
@@ -475,17 +474,3 @@
         self.account_client = AccountClient(self.auth_provider, **params)
         self.container_client = ContainerClient(self.auth_provider, **params)
         self.object_client = ObjectClient(self.auth_provider, **params)
-
-
-class AdminManager(Manager):
-
-    """
-    Manager object that uses the admin credentials for its
-    managed client objects
-    """
-
-    def __init__(self, service=None):
-        super(AdminManager, self).__init__(
-            credentials=cred_provider.get_configured_credentials(
-                'identity_admin'),
-            service=service)
diff --git a/tempest/cmd/cleanup.py b/tempest/cmd/cleanup.py
index 4fa4302..5f421d6 100644
--- a/tempest/cmd/cleanup.py
+++ b/tempest/cmd/cleanup.py
@@ -58,7 +58,7 @@
 
 from tempest import clients
 from tempest.cmd import cleanup_service
-from tempest.common import cred_provider
+from tempest.common import credentials_factory as credentials
 from tempest import config
 
 SAVED_STATE_JSON = "saved_state.json"
@@ -75,7 +75,7 @@
     def take_action(self, parsed_args):
         cleanup_service.init_conf()
         self.options = parsed_args
-        self.admin_mgr = clients.AdminManager()
+        self.admin_mgr = credentials.AdminManager()
         self.dry_run_data = {}
         self.json_data = {}
 
@@ -162,7 +162,7 @@
         kwargs = {"username": CONF.auth.admin_username,
                   "password": CONF.auth.admin_password,
                   "tenant_name": tenant['name']}
-        mgr = clients.Manager(credentials=cred_provider.get_credentials(
+        mgr = clients.Manager(credentials=credentials.get_credentials(
             **kwargs))
         kwargs = {'data': tenant_data,
                   'is_dry_run': is_dry_run,
@@ -235,7 +235,7 @@
         LOG.debug("Remove admin user role for tenant: %s" % tenant_id)
         # Must initialize AdminManager for each user role
         # Otherwise authentication exception is thrown, weird
-        id_cl = clients.AdminManager().identity_client
+        id_cl = credentials.AdminManager().identity_client
         if (self._tenant_exists(tenant_id)):
             try:
                 id_cl.remove_user_role(tenant_id, self.admin_id,
diff --git a/tempest/cmd/cleanup_service.py b/tempest/cmd/cleanup_service.py
index 1b5820b..362e52c 100644
--- a/tempest/cmd/cleanup_service.py
+++ b/tempest/cmd/cleanup_service.py
@@ -16,7 +16,7 @@
 
 from oslo_log import log as logging
 
-from tempest import clients
+from tempest.common import credentials_factory as credentials
 from tempest import config
 from tempest import test
 
@@ -82,7 +82,7 @@
 
 
 def _get_network_id(net_name, tenant_name):
-    am = clients.AdminManager()
+    am = credentials.AdminManager()
     net_cl = am.networks_client
     id_cl = am.identity_client
 
diff --git a/tempest/cmd/verify_tempest_config.py b/tempest/cmd/verify_tempest_config.py
index 2811070..9c8e2a0 100755
--- a/tempest/cmd/verify_tempest_config.py
+++ b/tempest/cmd/verify_tempest_config.py
@@ -24,7 +24,7 @@
 from six.moves.urllib import parse as urlparse
 
 from tempest import clients
-from tempest.common import credentials
+from tempest.common import credentials_factory as credentials
 from tempest import config
 
 
diff --git a/tempest/common/cred_provider.py b/tempest/common/cred_provider.py
index 3575998..e5f24b3 100644
--- a/tempest/common/cred_provider.py
+++ b/tempest/common/cred_provider.py
@@ -18,83 +18,10 @@
 import six
 from tempest_lib import auth
 
-from tempest import config
 from tempest import exceptions
 
-CONF = config.CONF
 LOG = logging.getLogger(__name__)
 
-# Type of credentials available from configuration
-CREDENTIAL_TYPES = {
-    'identity_admin': ('auth', 'admin'),
-    'user': ('identity', None),
-    'alt_user': ('identity', 'alt')
-}
-
-DEFAULT_PARAMS = {
-    'disable_ssl_certificate_validation':
-        CONF.identity.disable_ssl_certificate_validation,
-    'ca_certs': CONF.identity.ca_certificates_file,
-    'trace_requests': CONF.debug.trace_requests
-}
-
-
-# Read credentials from configuration, builds a Credentials object
-# based on the specified or configured version
-def get_configured_credentials(credential_type, fill_in=True,
-                               identity_version=None):
-    identity_version = identity_version or CONF.identity.auth_version
-    if identity_version not in ('v2', 'v3'):
-        raise exceptions.InvalidConfiguration(
-            'Unsupported auth version: %s' % identity_version)
-    if credential_type not in CREDENTIAL_TYPES:
-        raise exceptions.InvalidCredentials()
-    conf_attributes = ['username', 'password', 'tenant_name']
-    if identity_version == 'v3':
-        conf_attributes.append('domain_name')
-    # Read the parts of credentials from config
-    params = DEFAULT_PARAMS.copy()
-    section, prefix = CREDENTIAL_TYPES[credential_type]
-    for attr in conf_attributes:
-        _section = getattr(CONF, section)
-        if prefix is None:
-            params[attr] = getattr(_section, attr)
-        else:
-            params[attr] = getattr(_section, prefix + "_" + attr)
-    # Build and validate credentials. We are reading configured credentials,
-    # so validate them even if fill_in is False
-    credentials = get_credentials(fill_in=fill_in,
-                                  identity_version=identity_version, **params)
-    if not fill_in:
-        if not credentials.is_valid():
-            msg = ("The %s credentials are incorrectly set in the config file."
-                   " Double check that all required values are assigned" %
-                   credential_type)
-            raise exceptions.InvalidConfiguration(msg)
-    return credentials
-
-
-# Wrapper around auth.get_credentials to use the configured identity version
-# is none is specified
-def get_credentials(fill_in=True, identity_version=None, **kwargs):
-    params = dict(DEFAULT_PARAMS, **kwargs)
-    identity_version = identity_version or CONF.identity.auth_version
-    # In case of "v3" add the domain from config if not specified
-    if identity_version == 'v3':
-        domain_fields = set(x for x in auth.KeystoneV3Credentials.ATTRIBUTES
-                            if 'domain' in x)
-        if not domain_fields.intersection(kwargs.keys()):
-            domain_name = CONF.auth.default_credentials_domain_name
-            params['user_domain_name'] = domain_name
-
-        auth_url = CONF.identity.uri_v3
-    else:
-        auth_url = CONF.identity.uri
-    return auth.get_credentials(auth_url,
-                                fill_in=fill_in,
-                                identity_version=identity_version,
-                                **params)
-
 
 @six.add_metaclass(abc.ABCMeta)
 class CredentialProvider(object):
diff --git a/tempest/common/credentials.py b/tempest/common/credentials.py
deleted file mode 100644
index 76f8afe..0000000
--- a/tempest/common/credentials.py
+++ /dev/null
@@ -1,110 +0,0 @@
-# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
-#    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.
-
-import os
-
-from tempest.common import cred_provider
-from tempest.common import dynamic_creds
-from tempest.common import preprov_creds
-from tempest import config
-from tempest import exceptions
-
-CONF = config.CONF
-
-
-# Return the right implementation of CredentialProvider based on config
-# Dropping interface and password, as they are never used anyways
-# TODO(andreaf) Drop them from the CredentialsProvider interface completely
-def get_credentials_provider(name, network_resources=None,
-                             force_tenant_isolation=False,
-                             identity_version=None):
-    # If a test requires a new account to work, it can have it via forcing
-    # dynamic credentials. A new account will be produced only for that test.
-    # In case admin credentials are not available for the account creation,
-    # the test should be skipped else it would fail.
-    identity_version = identity_version or CONF.identity.auth_version
-    if CONF.auth.use_dynamic_credentials or force_tenant_isolation:
-        return dynamic_creds.DynamicCredentialProvider(
-            name=name,
-            network_resources=network_resources,
-            identity_version=identity_version,
-            credentials_domain=CONF.auth.default_credentials_domain_name,
-            admin_role=CONF.identity.admin_role)
-    else:
-        if (CONF.auth.test_accounts_file and
-                os.path.isfile(CONF.auth.test_accounts_file)):
-            # Most params are not relevant for pre-created accounts
-            return preprov_creds.PreProvisionedCredentialProvider(
-                name=name, identity_version=identity_version,
-                credentials_domain=CONF.auth.default_credentials_domain_name,
-                admin_role=CONF.identity.admin_role)
-        else:
-            return preprov_creds.NonLockingCredentialProvider(
-                name=name, identity_version=identity_version,
-                admin_role=CONF.identity.admin_role)
-
-
-# We want a helper function here to check and see if admin credentials
-# are available so we can do a single call from skip_checks if admin
-# creds area available.
-# This depends on identity_version as there may be admin credentials
-# available for v2 but not for v3.
-def is_admin_available(identity_version):
-    is_admin = True
-    # If dynamic credentials is enabled admin will be available
-    if CONF.auth.use_dynamic_credentials:
-        return is_admin
-    # Check whether test accounts file has the admin specified or not
-    elif (CONF.auth.test_accounts_file and
-            os.path.isfile(CONF.auth.test_accounts_file)):
-        check_accounts = preprov_creds.PreProvisionedCredentialProvider(
-            identity_version=identity_version, name='check_admin',
-            admin_role=CONF.identity.admin_role)
-        if not check_accounts.admin_available():
-            is_admin = False
-    else:
-        try:
-            cred_provider.get_configured_credentials(
-                'identity_admin', fill_in=False,
-                identity_version=identity_version)
-        except exceptions.InvalidConfiguration:
-            is_admin = False
-    return is_admin
-
-
-# We want a helper function here to check and see if alt credentials
-# are available so we can do a single call from skip_checks if alt
-# creds area available.
-# This depends on identity_version as there may be alt credentials
-# available for v2 but not for v3.
-def is_alt_available(identity_version):
-    # If dynamic credentials is enabled alt will be available
-    if CONF.auth.use_dynamic_credentials:
-        return True
-    # Check whether test accounts file has the admin specified or not
-    if (CONF.auth.test_accounts_file and
-            os.path.isfile(CONF.auth.test_accounts_file)):
-        check_accounts = preprov_creds.PreProvisionedCredentialProvider(
-            identity_version=identity_version, name='check_alt',
-            admin_role=CONF.identity.admin_role)
-    else:
-        check_accounts = preprov_creds.NonLockingCredentialProvider(
-            identity_version=identity_version, name='check_alt',
-            admin_role=CONF.identity.admin_role)
-    try:
-        if not check_accounts.is_multi_user():
-            return False
-        else:
-            return True
-    except exceptions.InvalidConfiguration:
-        return False
diff --git a/tempest/common/credentials_factory.py b/tempest/common/credentials_factory.py
new file mode 100644
index 0000000..486b7fd
--- /dev/null
+++ b/tempest/common/credentials_factory.py
@@ -0,0 +1,316 @@
+# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
+#    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.
+
+import os
+
+from oslo_log import log as logging
+from tempest_lib import auth
+
+from tempest import clients
+from tempest.common import cred_provider
+from tempest.common import dynamic_creds
+from tempest.common import preprov_creds
+from tempest import config
+from tempest import exceptions
+
+CONF = config.CONF
+LOG = logging.getLogger(__name__)
+
+
+"""This module provides factories of credential and credential providers
+
+Credentials providers and clients are (going to be) part of tempest-lib,
+and so they may not hold any dependency to tempest configuration.
+
+Methods in this module collect the relevant configuration details and pass
+them to credentials providers and clients, so that test can have easy
+access to these features.
+
+Client managers with hard-coded configured credentials are also moved here,
+to avoid circular dependencies."""
+
+# === Credential Providers
+
+
+class LegacyCredentialProvider(cred_provider.CredentialProvider):
+
+    def __init__(self, identity_version):
+        """Credentials provider which returns credentials from tempest.conf
+
+        Credentials provider which always returns the first and second
+        configured accounts as primary and alt users.
+        Credentials from tempest.conf are deprecated, and this credential
+        provider is also accordingly.
+
+        This credential provider can be used in case of serial test execution
+        to preserve the current behaviour of the serial tempest run.
+
+        :param identity_version: Version of the identity API
+        :return: CredentialProvider
+        """
+        super(LegacyCredentialProvider, self).__init__(
+            identity_version=identity_version)
+        self._creds = {}
+
+    def _unique_creds(self, cred_arg=None):
+        """Verify that the configured credentials are valid and distinct """
+        try:
+            user = self.get_primary_creds()
+            alt_user = self.get_alt_creds()
+            return getattr(user, cred_arg) != getattr(alt_user, cred_arg)
+        except exceptions.InvalidCredentials as ic:
+            msg = "At least one of the configured credentials is " \
+                  "not valid: %s" % ic.message
+            raise exceptions.InvalidConfiguration(msg)
+
+    def is_multi_user(self):
+        return self._unique_creds('username')
+
+    def is_multi_tenant(self):
+        return self._unique_creds('tenant_id')
+
+    def get_primary_creds(self):
+        if self._creds.get('primary'):
+            return self._creds.get('primary')
+        primary_credential = get_configured_credentials(
+            credential_type='user', fill_in=False,
+            identity_version=self.identity_version)
+        self._creds['primary'] = cred_provider.TestResources(
+            primary_credential)
+        return self._creds['primary']
+
+    def get_alt_creds(self):
+        if self._creds.get('alt'):
+            return self._creds.get('alt')
+        alt_credential = get_configured_credentials(
+            credential_type='alt_user', fill_in=False,
+            identity_version=self.identity_version)
+        self._creds['alt'] = cred_provider.TestResources(
+            alt_credential)
+        return self._creds['alt']
+
+    def clear_creds(self):
+        self._creds = {}
+
+    def get_admin_creds(self):
+        if self._creds.get('admin'):
+            return self._creds.get('admin')
+        creds = get_configured_credentials(
+            "identity_admin", fill_in=False)
+        self._creds['admin'] = cred_provider.TestResources(creds)
+        return self._creds['admin']
+
+    def get_creds_by_roles(self, roles, force_new=False):
+        msg = "Credentials being specified through the config file can not be"\
+              " used with tests that specify using credentials by roles. "\
+              "Either exclude/skip the tests doing this or use either an "\
+              "test_accounts_file or dynamic credentials."
+        raise exceptions.InvalidConfiguration(msg)
+
+    def is_role_available(self, role):
+        msg = "Credentials being specified through the config file can not be"\
+              " used with tests that specify using credentials by roles. "\
+              "Either exclude/skip the tests doing this or use either an "\
+              "test_accounts_file or dynamic credentials."
+        raise exceptions.InvalidConfiguration(msg)
+
+
+# Return the right implementation of CredentialProvider based on config
+# Dropping interface and password, as they are never used anyways
+# TODO(andreaf) Drop them from the CredentialsProvider interface completely
+def get_credentials_provider(name, network_resources=None,
+                             force_tenant_isolation=False,
+                             identity_version=None):
+    # If a test requires a new account to work, it can have it via forcing
+    # dynamic credentials. A new account will be produced only for that test.
+    # In case admin credentials are not available for the account creation,
+    # the test should be skipped else it would fail.
+    identity_version = identity_version or CONF.identity.auth_version
+    if CONF.auth.use_dynamic_credentials or force_tenant_isolation:
+        admin_creds = get_configured_credentials(
+            'identity_admin', fill_in=True, identity_version=identity_version)
+        return dynamic_creds.DynamicCredentialProvider(
+            name=name,
+            network_resources=network_resources,
+            identity_version=identity_version,
+            credentials_domain=CONF.auth.default_credentials_domain_name,
+            admin_role=CONF.identity.admin_role,
+            admin_creds=admin_creds)
+    else:
+        if (CONF.auth.test_accounts_file and
+                os.path.isfile(CONF.auth.test_accounts_file)):
+            # Most params are not relevant for pre-created accounts
+            return preprov_creds.PreProvisionedCredentialProvider(
+                name=name, identity_version=identity_version,
+                credentials_domain=CONF.auth.default_credentials_domain_name,
+                admin_role=CONF.identity.admin_role)
+        else:
+            # Dynamic credentials are disabled, and the account file is not
+            # defined - we fall back on credentials configured in tempest.conf
+            return LegacyCredentialProvider(identity_version=identity_version)
+
+
+# We want a helper function here to check and see if admin credentials
+# are available so we can do a single call from skip_checks if admin
+# creds area available.
+# This depends on identity_version as there may be admin credentials
+# available for v2 but not for v3.
+def is_admin_available(identity_version):
+    is_admin = True
+    # If dynamic credentials is enabled admin will be available
+    if CONF.auth.use_dynamic_credentials:
+        return is_admin
+    # Check whether test accounts file has the admin specified or not
+    elif (CONF.auth.test_accounts_file and
+            os.path.isfile(CONF.auth.test_accounts_file)):
+        check_accounts = preprov_creds.PreProvisionedCredentialProvider(
+            identity_version=identity_version, name='check_admin',
+            admin_role=CONF.identity.admin_role)
+        if not check_accounts.admin_available():
+            is_admin = False
+    else:
+        try:
+            get_configured_credentials('identity_admin', fill_in=False,
+                                       identity_version=identity_version)
+        except exceptions.InvalidConfiguration:
+            is_admin = False
+    return is_admin
+
+
+# We want a helper function here to check and see if alt credentials
+# are available so we can do a single call from skip_checks if alt
+# creds area available.
+# This depends on identity_version as there may be alt credentials
+# available for v2 but not for v3.
+def is_alt_available(identity_version):
+    # If dynamic credentials is enabled alt will be available
+    if CONF.auth.use_dynamic_credentials:
+        return True
+    # Check whether test accounts file has the admin specified or not
+    if (CONF.auth.test_accounts_file and
+            os.path.isfile(CONF.auth.test_accounts_file)):
+        check_accounts = preprov_creds.PreProvisionedCredentialProvider(
+            identity_version=identity_version, name='check_alt',
+            admin_role=CONF.identity.admin_role)
+    else:
+        check_accounts = LegacyCredentialProvider(identity_version)
+    try:
+        if not check_accounts.is_multi_user():
+            return False
+        else:
+            return True
+    except exceptions.InvalidConfiguration:
+        return False
+
+# === Credentials
+
+# Type of credentials available from configuration
+CREDENTIAL_TYPES = {
+    'identity_admin': ('auth', 'admin'),
+    'user': ('identity', None),
+    'alt_user': ('identity', 'alt')
+}
+
+DEFAULT_PARAMS = {
+    'disable_ssl_certificate_validation':
+        CONF.identity.disable_ssl_certificate_validation,
+    'ca_certs': CONF.identity.ca_certificates_file,
+    'trace_requests': CONF.debug.trace_requests
+}
+
+
+# Read credentials from configuration, builds a Credentials object
+# based on the specified or configured version
+def get_configured_credentials(credential_type, fill_in=True,
+                               identity_version=None):
+    identity_version = identity_version or CONF.identity.auth_version
+
+    if identity_version not in ('v2', 'v3'):
+        raise exceptions.InvalidConfiguration(
+            'Unsupported auth version: %s' % identity_version)
+
+    if credential_type not in CREDENTIAL_TYPES:
+        raise exceptions.InvalidCredentials()
+    conf_attributes = ['username', 'password', 'tenant_name']
+
+    if identity_version == 'v3':
+        conf_attributes.append('domain_name')
+    # Read the parts of credentials from config
+    params = DEFAULT_PARAMS.copy()
+    section, prefix = CREDENTIAL_TYPES[credential_type]
+    for attr in conf_attributes:
+        _section = getattr(CONF, section)
+        if prefix is None:
+            params[attr] = getattr(_section, attr)
+        else:
+            params[attr] = getattr(_section, prefix + "_" + attr)
+    # Build and validate credentials. We are reading configured credentials,
+    # so validate them even if fill_in is False
+    credentials = get_credentials(fill_in=fill_in,
+                                  identity_version=identity_version, **params)
+    if not fill_in:
+        if not credentials.is_valid():
+            msg = ("The %s credentials are incorrectly set in the config file."
+                   " Double check that all required values are assigned" %
+                   credential_type)
+            raise exceptions.InvalidConfiguration(msg)
+    return credentials
+
+
+# Wrapper around auth.get_credentials to use the configured identity version
+# is none is specified
+def get_credentials(fill_in=True, identity_version=None, **kwargs):
+    params = dict(DEFAULT_PARAMS, **kwargs)
+    identity_version = identity_version or CONF.identity.auth_version
+    # In case of "v3" add the domain from config if not specified
+    if identity_version == 'v3':
+        domain_fields = set(x for x in auth.KeystoneV3Credentials.ATTRIBUTES
+                            if 'domain' in x)
+        if not domain_fields.intersection(kwargs.keys()):
+            domain_name = CONF.auth.default_credentials_domain_name
+            params['user_domain_name'] = domain_name
+
+        auth_url = CONF.identity.uri_v3
+    else:
+        auth_url = CONF.identity.uri
+    return auth.get_credentials(auth_url,
+                                fill_in=fill_in,
+                                identity_version=identity_version,
+                                **params)
+
+# === Credential / client managers
+
+
+class ConfiguredUserManager(clients.Manager):
+    """
+    Manager object that uses the `user` credentials for its
+    managed client objects
+    """
+
+    def __init__(self, service=None):
+        super(ConfiguredUserManager, self).__init__(
+            credentials=get_configured_credentials('user'),
+            service=service)
+
+
+class AdminManager(clients.Manager):
+
+    """
+    Manager object that uses the admin credentials for its
+    managed client objects
+    """
+
+    def __init__(self, service=None):
+        super(AdminManager, self).__init__(
+            credentials=get_configured_credentials('identity_admin'),
+            service=service)
diff --git a/tempest/common/dynamic_creds.py b/tempest/common/dynamic_creds.py
index e2df560..de65cf4 100644
--- a/tempest/common/dynamic_creds.py
+++ b/tempest/common/dynamic_creds.py
@@ -31,16 +31,32 @@
 class DynamicCredentialProvider(cred_provider.CredentialProvider):
 
     def __init__(self, identity_version, name=None, network_resources=None,
-                 credentials_domain=None, admin_role=None):
+                 credentials_domain=None, admin_role=None, admin_creds=None):
+        """Creates credentials dynamically for tests
+
+        A credential provider that, based on an initial set of
+        admin credentials, creates new credentials on the fly for
+        tests to use and then discard.
+
+        :param str identity_version: identity API version to use `v2` or `v3`
+        :param str admin_role: name of the admin role added to admin users
+        :param str name: names of dynamic resources include this parameter
+                         when specified
+        :param str credentials_domain: name of the domain where the users
+                                       are created. If not defined, the project
+                                       domain from admin_credentials is used
+        :param dict network_resources: network resources to be created for
+                                       the created credentials
+        :param Credentials admin_creds: initial admin credentials
+        """
         super(DynamicCredentialProvider, self).__init__(
-            identity_version=identity_version, name=name,
-            network_resources=network_resources,
-            credentials_domain=credentials_domain, admin_role=admin_role)
+            identity_version=identity_version, admin_role=admin_role,
+            name=name, credentials_domain=credentials_domain,
+            network_resources=network_resources)
+        self.network_resources = network_resources
         self._creds = {}
         self.ports = []
-        self.default_admin_creds = cred_provider.get_configured_credentials(
-            'identity_admin', fill_in=True,
-            identity_version=self.identity_version)
+        self.default_admin_creds = admin_creds
         (self.identity_admin_client, self.network_admin_client,
          self.networks_admin_client,
          self.subnets_admin_client) = self._get_admin_clients()
diff --git a/tempest/common/preprov_creds.py b/tempest/common/preprov_creds.py
index dd27f08..f711302 100644
--- a/tempest/common/preprov_creds.py
+++ b/tempest/common/preprov_creds.py
@@ -310,64 +310,3 @@
             if not user_domain_fields.intersection(set(creds_dict.keys())):
                 creds_dict['user_domain_name'] = self.credentials_domain
         return creds_dict
-
-
-class NonLockingCredentialProvider(PreProvisionedCredentialProvider):
-    """Credentials provider which always returns the first and second
-    configured accounts as primary and alt users.
-    This credential provider can be used in case of serial test execution
-    to preserve the current behaviour of the serial tempest run.
-    """
-
-    def _unique_creds(self, cred_arg=None):
-        """Verify that the configured credentials are valid and distinct """
-        try:
-            user = self.get_primary_creds()
-            alt_user = self.get_alt_creds()
-            return getattr(user, cred_arg) != getattr(alt_user, cred_arg)
-        except exceptions.InvalidCredentials as ic:
-            msg = "At least one of the configured credentials is " \
-                  "not valid: %s" % ic.message
-            raise exceptions.InvalidConfiguration(msg)
-
-    def is_multi_user(self):
-        return self._unique_creds('username')
-
-    def is_multi_tenant(self):
-        return self._unique_creds('tenant_id')
-
-    def get_primary_creds(self):
-        if self._creds.get('primary'):
-            return self._creds.get('primary')
-        primary_credential = cred_provider.get_configured_credentials(
-            fill_in=False, credential_type='user',
-            identity_version=self.identity_version)
-        self._creds['primary'] = cred_provider.TestResources(
-            primary_credential)
-        return self._creds['primary']
-
-    def get_alt_creds(self):
-        if self._creds.get('alt'):
-            return self._creds.get('alt')
-        alt_credential = cred_provider.get_configured_credentials(
-            fill_in=False, credential_type='alt_user',
-            identity_version=self.identity_version)
-        self._creds['alt'] = cred_provider.TestResources(
-            alt_credential)
-        return self._creds['alt']
-
-    def clear_creds(self):
-        self._creds = {}
-
-    def get_admin_creds(self):
-        creds = cred_provider.get_configured_credentials(
-            "identity_admin", fill_in=False)
-        self._creds['admin'] = cred_provider.TestResources(creds)
-        return self._creds['admin']
-
-    def get_creds_by_roles(self, roles, force_new=False):
-        msg = "Credentials being specified through the config file can not be"\
-              " used with tests that specify using credentials by roles. "\
-              "Either exclude/skip the tests doing this or use either an "\
-              "test_accounts_file or dynamic credentials."
-        raise exceptions.InvalidConfiguration(msg)
diff --git a/tempest/manager.py b/tempest/manager.py
index d7c3128..b0541e8 100644
--- a/tempest/manager.py
+++ b/tempest/manager.py
@@ -31,22 +31,18 @@
     and a client object for a test case to use in performing actions.
     """
 
-    def __init__(self, credentials=None):
+    def __init__(self, credentials):
         """
-        We allow overriding of the credentials used within the various
-        client classes managed by the Manager object. Left as None, the
-        standard username/password/tenant_name[/domain_name] is used.
+        Credentials to be used within the various client classes managed by the
+        Manager object must be defined.
 
-        :param credentials: Override of the credentials
+        :param credentials: type Credentials or TestResources
         """
-        self.auth_version = CONF.identity.auth_version
-        if credentials is None:
-            self.credentials = cred_provider.get_configured_credentials('user')
-        else:
-            self.credentials = credentials
+        self.credentials = credentials
         # Check if passed or default credentials are valid
         if not self.credentials.is_valid():
             raise exceptions.InvalidCredentials()
+        self.auth_version = CONF.identity.auth_version
         # Tenant isolation creates TestResources, but
         # PreProvisionedCredentialProvider and some tests create Credentials
         if isinstance(credentials, cred_provider.TestResources):
diff --git a/tempest/scenario/utils.py b/tempest/scenario/utils.py
index 12509f7..16db18c 100644
--- a/tempest/scenario/utils.py
+++ b/tempest/scenario/utils.py
@@ -24,7 +24,7 @@
 import testtools
 
 from tempest import clients
-from tempest.common import credentials
+from tempest.common import credentials_factory as credentials
 from tempest import config
 
 CONF = config.CONF
diff --git a/tempest/stress/cleanup.py b/tempest/stress/cleanup.py
index 1350d95..4c77b19 100644
--- a/tempest/stress/cleanup.py
+++ b/tempest/stress/cleanup.py
@@ -16,14 +16,14 @@
 
 from oslo_log import log as logging
 
-from tempest import clients
+from tempest.common import credentials_factory as credentials
 from tempest.common import waiters
 
 LOG = logging.getLogger(__name__)
 
 
 def cleanup():
-    admin_manager = clients.AdminManager()
+    admin_manager = credentials.AdminManager()
 
     body = admin_manager.servers_client.list_servers(all_tenants=True)
     LOG.info("Cleanup::remove %s servers" % len(body['servers']))
diff --git a/tempest/stress/driver.py b/tempest/stress/driver.py
index 7634d2c..eec52cb 100644
--- a/tempest/stress/driver.py
+++ b/tempest/stress/driver.py
@@ -26,6 +26,7 @@
 
 from tempest import clients
 from tempest.common import cred_client
+from tempest.common import credentials_factory as credentials
 from tempest.common.utils import data_utils
 from tempest import config
 from tempest import exceptions
@@ -122,7 +123,7 @@
     """
     Workload driver. Executes an action function against a nova-cluster.
     """
-    admin_manager = clients.AdminManager()
+    admin_manager = credentials.AdminManager()
 
     ssh_user = CONF.stress.target_ssh_user
     ssh_key = CONF.stress.target_private_key_path
@@ -145,7 +146,7 @@
         if test.get('use_admin', False):
             manager = admin_manager
         else:
-            manager = clients.Manager()
+            manager = credentials.ConfiguredUserManager()
         for p_number in moves.xrange(test.get('threads', default_thread_num)):
             if test.get('use_isolated_tenants', False):
                 username = data_utils.rand_name("stress_user")
diff --git a/tempest/test.py b/tempest/test.py
index b8ba5f4..4be6779 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -32,7 +32,7 @@
 
 from tempest import clients
 from tempest.common import cred_client
-from tempest.common import credentials
+from tempest.common import credentials_factory as credentials
 from tempest.common import fixed_network
 import tempest.common.generator.valid_generator as valid
 import tempest.common.validation_resources as vresources
diff --git a/tempest/tests/common/test_admin_available.py b/tempest/tests/common/test_admin_available.py
index a53ed5f..75401db 100644
--- a/tempest/tests/common/test_admin_available.py
+++ b/tempest/tests/common/test_admin_available.py
@@ -15,7 +15,7 @@
 from oslo_config import cfg
 from oslotest import mockpatch
 
-from tempest.common import credentials
+from tempest.common import credentials_factory as credentials
 from tempest import config
 from tempest.tests import base
 from tempest.tests import fake_config
diff --git a/tempest/tests/common/test_alt_available.py b/tempest/tests/common/test_alt_available.py
index 6a86f73..db3f5ec 100644
--- a/tempest/tests/common/test_alt_available.py
+++ b/tempest/tests/common/test_alt_available.py
@@ -15,7 +15,7 @@
 from oslo_config import cfg
 from oslotest import mockpatch
 
-from tempest.common import credentials
+from tempest.common import credentials_factory as credentials
 from tempest import config
 from tempest.tests import base
 from tempest.tests import fake_config
diff --git a/tempest/tests/common/test_cred_provider.py b/tempest/tests/common/test_configured_creds.py
similarity index 95%
rename from tempest/tests/common/test_cred_provider.py
rename to tempest/tests/common/test_configured_creds.py
index d404660..96b75fd 100644
--- a/tempest/tests/common/test_cred_provider.py
+++ b/tempest/tests/common/test_configured_creds.py
@@ -18,8 +18,7 @@
 from tempest_lib.services.identity.v2 import token_client as v2_client
 from tempest_lib.services.identity.v3 import token_client as v3_client
 
-
-from tempest.common import cred_provider
+from tempest.common import credentials_factory as common_creds
 from tempest.common import tempest_fixtures as fixtures
 from tempest import config
 from tempest.tests import base
@@ -65,12 +64,12 @@
 
     def _verify_credentials(self, credentials_class, filled=True,
                             identity_version=None):
-        for ctype in cred_provider.CREDENTIAL_TYPES:
+        for ctype in common_creds.CREDENTIAL_TYPES:
             if identity_version is None:
-                creds = cred_provider.get_configured_credentials(
+                creds = common_creds.get_configured_credentials(
                     credential_type=ctype, fill_in=filled)
             else:
-                creds = cred_provider.get_configured_credentials(
+                creds = common_creds.get_configured_credentials(
                     credential_type=ctype, fill_in=filled,
                     identity_version=identity_version)
             self._check(creds, credentials_class, filled)
diff --git a/tempest/tests/common/test_credentials.py b/tempest/tests/common/test_credentials.py
new file mode 100644
index 0000000..136ac02
--- /dev/null
+++ b/tempest/tests/common/test_credentials.py
@@ -0,0 +1,36 @@
+# Copyright 2015 Hewlett-Packard Development Company, L.P.
+#
+#    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 tempest.common import credentials_factory as credentials
+from tempest import config
+from tempest import exceptions
+from tempest.tests import base
+from tempest.tests import fake_config
+
+
+class TestLegacyCredentialsProvider(base.TestCase):
+
+    fixed_params = {'identity_version': 'v2'}
+
+    def setUp(self):
+        super(TestLegacyCredentialsProvider, self).setUp()
+        self.useFixture(fake_config.ConfigFixture())
+        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+
+    def test_get_creds_roles_legacy_invalid(self):
+        test_accounts_class = credentials.LegacyCredentialProvider(
+            **self.fixed_params)
+        self.assertRaises(exceptions.InvalidConfiguration,
+                          test_accounts_class.get_creds_by_roles,
+                          ['fake_role'])
diff --git a/tempest/tests/common/test_dynamic_creds.py b/tempest/tests/common/test_dynamic_creds.py
index 59a5523..089d9be 100644
--- a/tempest/tests/common/test_dynamic_creds.py
+++ b/tempest/tests/common/test_dynamic_creds.py
@@ -17,6 +17,7 @@
 from oslotest import mockpatch
 from tempest_lib.services.identity.v2 import token_client as json_token_client
 
+from tempest.common import credentials_factory as credentials
 from tempest.common import dynamic_creds
 from tempest.common import service_client
 from tempest import config
@@ -46,6 +47,8 @@
         cfg.CONF.set_default('operator_role', 'FakeRole',
                              group='object-storage')
         self._mock_list_ec2_credentials('fake_user_id', 'fake_tenant_id')
+        self.fixed_params.update(
+            admin_creds=self._get_fake_admin_creds())
 
     def test_tempest_client(self):
         creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
@@ -54,6 +57,13 @@
         self.assertTrue(isinstance(creds.network_admin_client,
                                    json_network_client.NetworkClient))
 
+    def _get_fake_admin_creds(self):
+        return credentials.get_credentials(
+            fill_in=False,
+            identity_version=self.fixed_params['identity_version'],
+            username='fake_username', password='fake_password',
+            tenant_name='fake_tenant')
+
     def _mock_user_create(self, id, name):
         user_fix = self.useFixture(mockpatch.PatchObject(
             json_iden_client.IdentityClient,
diff --git a/tempest/tests/common/test_preprov_creds.py b/tempest/tests/common/test_preprov_creds.py
index 8a014af..36dd976 100644
--- a/tempest/tests/common/test_preprov_creds.py
+++ b/tempest/tests/common/test_preprov_creds.py
@@ -329,36 +329,3 @@
         self.assertIn('id', network)
         self.assertEqual('fake-id', network['id'])
         self.assertEqual('network-2', network['name'])
-
-
-class TestNotLockingAccount(base.TestCase):
-
-    fixed_params = {'name': 'test class',
-                    'identity_version': 'v2',
-                    'admin_role': 'admin'}
-
-    def setUp(self):
-        super(TestNotLockingAccount, self).setUp()
-        self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
-        self.useFixture(lockutils_fixtures.ExternalLockFixture())
-        self.test_accounts = [
-            {'username': 'test_user1', 'tenant_name': 'test_tenant1',
-             'password': 'p'},
-            {'username': 'test_user2', 'tenant_name': 'test_tenant2',
-             'password': 'p'},
-            {'username': 'test_user3', 'tenant_name': 'test_tenant3',
-             'password': 'p'},
-        ]
-        self.useFixture(mockpatch.Patch(
-            'tempest.common.preprov_creds.read_accounts_yaml',
-            return_value=self.test_accounts))
-        cfg.CONF.set_default('test_accounts_file', '', group='auth')
-        self.useFixture(mockpatch.Patch('os.path.isfile', return_value=True))
-
-    def test_get_creds_roles_nonlocking_invalid(self):
-        test_accounts_class = preprov_creds.NonLockingCredentialProvider(
-            **self.fixed_params)
-        self.assertRaises(exceptions.InvalidConfiguration,
-                          test_accounts_class.get_creds_by_roles,
-                          ['fake_role'])
diff --git a/tempest/thirdparty/boto/test.py b/tempest/thirdparty/boto/test.py
index 1ced180..05c47bb 100644
--- a/tempest/thirdparty/boto/test.py
+++ b/tempest/thirdparty/boto/test.py
@@ -27,7 +27,7 @@
 from six.moves.urllib import parse as urlparse
 from tempest_lib import exceptions as lib_exc
 
-import tempest.clients
+from tempest.common import credentials_factory as credentials
 from tempest.common.utils import file_utils
 from tempest import config
 from tempest import exceptions
@@ -67,7 +67,7 @@
         raise Exception("Unknown (Authentication?) Error")
     # NOTE(andreaf) Setting up an extra manager here is redundant,
     # and should be removed.
-    openstack = tempest.clients.Manager()
+    openstack = credentials.ConfiguredUserManager()
     try:
         if urlparse.urlparse(CONF.boto.ec2_url).hostname is None:
             raise Exception("Failed to get hostname from the ec2_url")