diff --git a/tempest/openstack/common/config/generator.py b/tempest/openstack/common/config/generator.py
index 8156cc5..664200e 100644
--- a/tempest/openstack/common/config/generator.py
+++ b/tempest/openstack/common/config/generator.py
@@ -150,7 +150,7 @@
 
 
 def _is_in_group(opt, group):
-    "Check if opt is in group."
+    """Check if opt is in group."""
     for value in group._opts.values():
         # NOTE(llu): Temporary workaround for bug #1262148, wait until
         # newly released oslo.config support '==' operator.
@@ -159,7 +159,7 @@
     return False
 
 
-def _guess_groups(opt, mod_obj):
+def _guess_groups(opt):
     # is it in the DEFAULT group?
     if _is_in_group(opt, cfg.CONF):
         return 'DEFAULT'
@@ -193,7 +193,7 @@
 
     ret = {}
     for opt in opts:
-        ret.setdefault(_guess_groups(opt, obj), []).append(opt)
+        ret.setdefault(_guess_groups(opt), []).append(opt)
     return ret.items()
 
 
@@ -223,6 +223,8 @@
 
 def _sanitize_default(name, value):
     """Set up a reasonably sensible default for pybasedir, my_ip and host."""
+    hostname = socket.gethostname()
+    fqdn = socket.getfqdn()
     if value.startswith(sys.prefix):
         # NOTE(jd) Don't use os.path.join, because it is likely to think the
         # second part is an absolute pathname and therefore drop the first
@@ -234,8 +236,13 @@
         return value.replace(BASEDIR, '')
     elif value == _get_my_ip():
         return '10.0.0.1'
-    elif value in (socket.gethostname(), socket.getfqdn()) and 'host' in name:
-        return 'tempest'
+    elif value in (hostname, fqdn):
+        if 'host' in name:
+            return 'tempest'
+    elif value.endswith(hostname):
+        return value.replace(hostname, 'tempest')
+    elif value.endswith(fqdn):
+        return value.replace(fqdn, 'tempest')
     elif value.strip() != value:
         return '"%s"' % value
     return value
@@ -246,7 +253,6 @@
     if not opt_help:
         sys.stderr.write('WARNING: "%s" is missing help string.\n' % opt_name)
         opt_help = ""
-    opt_type = None
     try:
         opt_type = OPTION_REGEX.search(str(type(opt))).group(0)
     except (ValueError, AttributeError) as err:
diff --git a/tempest/openstack/common/gettextutils.py b/tempest/openstack/common/gettextutils.py
index 17f66f7..6102e67 100644
--- a/tempest/openstack/common/gettextutils.py
+++ b/tempest/openstack/common/gettextutils.py
@@ -32,24 +32,113 @@
 from babel import localedata
 import six
 
-_localedir = os.environ.get('tempest'.upper() + '_LOCALEDIR')
-_t = gettext.translation('tempest', localedir=_localedir, fallback=True)
-
-# We use separate translation catalogs for each log level, so set up a
-# mapping between the log level name and the translator. The domain
-# for the log level is project_name + "-log-" + log_level so messages
-# for each level end up in their own catalog.
-_t_log_levels = dict(
-    (level, gettext.translation('tempest' + '-log-' + level,
-                                localedir=_localedir,
-                                fallback=True))
-    for level in ['info', 'warning', 'error', 'critical']
-)
-
 _AVAILABLE_LANGUAGES = {}
+
+# FIXME(dhellmann): Remove this when moving to oslo.i18n.
 USE_LAZY = False
 
 
+class TranslatorFactory(object):
+    """Create translator functions
+    """
+
+    def __init__(self, domain, lazy=False, localedir=None):
+        """Establish a set of translation functions for the domain.
+
+        :param domain: Name of translation domain,
+                       specifying a message catalog.
+        :type domain: str
+        :param lazy: Delays translation until a message is emitted.
+                     Defaults to False.
+        :type lazy: Boolean
+        :param localedir: Directory with translation catalogs.
+        :type localedir: str
+        """
+        self.domain = domain
+        self.lazy = lazy
+        if localedir is None:
+            localedir = os.environ.get(domain.upper() + '_LOCALEDIR')
+        self.localedir = localedir
+
+    def _make_translation_func(self, domain=None):
+        """Return a new translation function ready for use.
+
+        Takes into account whether or not lazy translation is being
+        done.
+
+        The domain can be specified to override the default from the
+        factory, but the localedir from the factory is always used
+        because we assume the log-level translation catalogs are
+        installed in the same directory as the main application
+        catalog.
+
+        """
+        if domain is None:
+            domain = self.domain
+        if self.lazy:
+            return functools.partial(Message, domain=domain)
+        t = gettext.translation(
+            domain,
+            localedir=self.localedir,
+            fallback=True,
+        )
+        if six.PY3:
+            return t.gettext
+        return t.ugettext
+
+    @property
+    def primary(self):
+        "The default translation function."
+        return self._make_translation_func()
+
+    def _make_log_translation_func(self, level):
+        return self._make_translation_func(self.domain + '-log-' + level)
+
+    @property
+    def log_info(self):
+        "Translate info-level log messages."
+        return self._make_log_translation_func('info')
+
+    @property
+    def log_warning(self):
+        "Translate warning-level log messages."
+        return self._make_log_translation_func('warning')
+
+    @property
+    def log_error(self):
+        "Translate error-level log messages."
+        return self._make_log_translation_func('error')
+
+    @property
+    def log_critical(self):
+        "Translate critical-level log messages."
+        return self._make_log_translation_func('critical')
+
+
+# NOTE(dhellmann): When this module moves out of the incubator into
+# oslo.i18n, these global variables can be moved to an integration
+# module within each application.
+
+# Create the global translation functions.
+_translators = TranslatorFactory('tempest')
+
+# The primary translation function using the well-known name "_"
+_ = _translators.primary
+
+# Translators for log levels.
+#
+# The abbreviated names are meant to reflect the usual use of a short
+# name like '_'. The "L" is for "log" and the other letter comes from
+# the level.
+_LI = _translators.log_info
+_LW = _translators.log_warning
+_LE = _translators.log_error
+_LC = _translators.log_critical
+
+# NOTE(dhellmann): End of globals that will move to the application's
+# integration module.
+
+
 def enable_lazy():
     """Convenience function for configuring _() to use lazy gettext
 
@@ -58,41 +147,18 @@
     your project is importing _ directly instead of using the
     gettextutils.install() way of importing the _ function.
     """
-    global USE_LAZY
+    # FIXME(dhellmann): This function will be removed in oslo.i18n,
+    # because the TranslatorFactory makes it superfluous.
+    global _, _LI, _LW, _LE, _LC, USE_LAZY
+    tf = TranslatorFactory('tempest', lazy=True)
+    _ = tf.primary
+    _LI = tf.log_info
+    _LW = tf.log_warning
+    _LE = tf.log_error
+    _LC = tf.log_critical
     USE_LAZY = True
 
 
-def _(msg):
-    if USE_LAZY:
-        return Message(msg, domain='tempest')
-    else:
-        if six.PY3:
-            return _t.gettext(msg)
-        return _t.ugettext(msg)
-
-
-def _log_translation(msg, level):
-    """Build a single translation of a log message
-    """
-    if USE_LAZY:
-        return Message(msg, domain='tempest' + '-log-' + level)
-    else:
-        translator = _t_log_levels[level]
-        if six.PY3:
-            return translator.gettext(msg)
-        return translator.ugettext(msg)
-
-# Translators for log levels.
-#
-# The abbreviated names are meant to reflect the usual use of a short
-# name like '_'. The "L" is for "log" and the other letter comes from
-# the level.
-_LI = functools.partial(_log_translation, level='info')
-_LW = functools.partial(_log_translation, level='warning')
-_LE = functools.partial(_log_translation, level='error')
-_LC = functools.partial(_log_translation, level='critical')
-
-
 def install(domain, lazy=False):
     """Install a _() function using the given translation domain.
 
@@ -112,26 +178,9 @@
                  any available locale.
     """
     if lazy:
-        # NOTE(mrodden): Lazy gettext functionality.
-        #
-        # The following introduces a deferred way to do translations on
-        # messages in OpenStack. We override the standard _() function
-        # and % (format string) operation to build Message objects that can
-        # later be translated when we have more information.
-        def _lazy_gettext(msg):
-            """Create and return a Message object.
-
-            Lazy gettext function for a given domain, it is a factory method
-            for a project/module to get a lazy gettext function for its own
-            translation domain (i.e. nova, glance, cinder, etc.)
-
-            Message encapsulates a string so that we can translate
-            it later when needed.
-            """
-            return Message(msg, domain=domain)
-
         from six import moves
-        moves.builtins.__dict__['_'] = _lazy_gettext
+        tf = TranslatorFactory(domain, lazy=True)
+        moves.builtins.__dict__['_'] = tf.primary
     else:
         localedir = '%s_LOCALEDIR' % domain.upper()
         if six.PY3:
@@ -274,13 +323,14 @@
     def __radd__(self, other):
         return self.__add__(other)
 
-    def __str__(self):
-        # NOTE(luisg): Logging in python 2.6 tries to str() log records,
-        # and it expects specifically a UnicodeError in order to proceed.
-        msg = _('Message objects do not support str() because they may '
-                'contain non-ascii characters. '
-                'Please use unicode() or translate() instead.')
-        raise UnicodeError(msg)
+    if six.PY2:
+        def __str__(self):
+            # NOTE(luisg): Logging in python 2.6 tries to str() log records,
+            # and it expects specifically a UnicodeError in order to proceed.
+            msg = _('Message objects do not support str() because they may '
+                    'contain non-ascii characters. '
+                    'Please use unicode() or translate() instead.')
+            raise UnicodeError(msg)
 
 
 def get_available_languages(domain):
diff --git a/tempest/openstack/common/importutils.py b/tempest/openstack/common/importutils.py
index 6c0d3b2..d5dd22f 100644
--- a/tempest/openstack/common/importutils.py
+++ b/tempest/openstack/common/importutils.py
@@ -24,10 +24,10 @@
 def import_class(import_str):
     """Returns a class from a string including module and class."""
     mod_str, _sep, class_str = import_str.rpartition('.')
+    __import__(mod_str)
     try:
-        __import__(mod_str)
         return getattr(sys.modules[mod_str], class_str)
-    except (ValueError, AttributeError):
+    except AttributeError:
         raise ImportError('Class %s cannot be found (%s)' %
                           (class_str,
                            traceback.format_exception(*sys.exc_info())))
diff --git a/tools/config/check_uptodate.sh b/tools/config/check_uptodate.sh
index 528bd5b..0f0d77e 100755
--- a/tools/config/check_uptodate.sh
+++ b/tools/config/check_uptodate.sh
@@ -16,6 +16,10 @@
 trap "rm -rf $TEMPDIR" EXIT
 
 tools/config/generate_sample.sh -b ./ -p ${PROJECT_NAME} -o ${TEMPDIR}
+if [ $? != 0 ]
+then
+    exit 1
+fi
 
 if ! diff -u ${TEMPDIR}/${CFGFILE_NAME} ${CFGFILE}
 then
diff --git a/tools/config/generate_sample.sh b/tools/config/generate_sample.sh
index 20ddfbb..d22b2f0 100755
--- a/tools/config/generate_sample.sh
+++ b/tools/config/generate_sample.sh
@@ -1,5 +1,15 @@
 #!/usr/bin/env bash
 
+# Generate sample configuration for your project.
+#
+# Aside from the command line flags, it also respects a config file which
+# should be named oslo.config.generator.rc and be placed in the same directory.
+#
+# You can then export the following variables:
+# TEMPEST_CONFIG_GENERATOR_EXTRA_MODULES: list of modules to interrogate for options.
+# TEMPEST_CONFIG_GENERATOR_EXTRA_LIBRARIES: list of libraries to discover.
+# TEMPEST_CONFIG_GENERATOR_EXCLUDED_FILES: list of files to remove from automatic listing.
+
 print_hint() {
     echo "Try \`${0##*/} --help' for more information." >&2
 }
@@ -95,6 +105,10 @@
     source "$RC_FILE"
 fi
 
+for filename in ${TEMPEST_CONFIG_GENERATOR_EXCLUDED_FILES}; do
+    FILES="${FILES[@]/$filename/}"
+done
+
 for mod in ${TEMPEST_CONFIG_GENERATOR_EXTRA_MODULES}; do
     MODULES="$MODULES -m $mod"
 done
@@ -111,6 +125,11 @@
 MODULEPATH=${MODULEPATH:-$DEFAULT_MODULEPATH}
 OUTPUTFILE=$OUTPUTDIR/$PACKAGENAME.conf.sample
 python -m $MODULEPATH $MODULES $LIBRARIES $FILES > $OUTPUTFILE
+if [ $? != 0 ]
+then
+    echo "Can not generate $OUTPUTFILE"
+    exit 1
+fi
 
 # Hook to allow projects to append custom config file snippets
 CONCAT_FILES=$(ls $BASEDIR/tools/config/*.conf.sample 2>/dev/null)