--- a/libervia/server/server.py	Fri Jan 25 08:41:43 2019 +0100
+++ b/libervia/server/server.py	Fri Jan 25 08:58:41 2019 +0100
@@ -17,6 +17,16 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import re
+import glob
+import os.path
+import sys
+import tempfile
+import shutil
+import uuid
+import urlparse
+import urllib
+import time
 from twisted.application import service
 from twisted.internet import reactor, defer
 from twisted.web import server
@@ -42,25 +52,16 @@
 from sat.core.i18n import _, D_
 from sat.core import exceptions
 from sat.tools import utils
+from sat.tools import config
 from sat.tools.common import regex
 from sat.tools.common import template
 from sat.tools.common import uri as common_uri
-
-import re
-import glob
-import os.path
-import sys
-import tempfile
-import shutil
-import uuid
-import urlparse
-import urllib
-import time
 from httplib import HTTPS_PORT
 import libervia
 from libervia.server import websockets
 from libervia.server.pages import LiberviaPage
 from libervia.server.utils import quote, ProgressHandler
+from libervia.server.tasks import TasksManager
 from functools import partial
 
 try:
@@ -1706,6 +1707,7 @@
         self.options = options
         self.initialised = defer.Deferred()
         self.waiting_profiles = WaitingRequests()  # FIXME: should be removed
+        self._main_conf = None
 
         if self.options["base_url_ext"]:
             self.base_url_ext = self.options.pop("base_url_ext")
@@ -1754,6 +1756,13 @@
             roots.insert(0, default)
         return roots
 
+    @property
+    def main_conf(self):
+        """SafeConfigParser instance opened on configuration file (sat.conf)"""
+        if self._main_conf is None:
+            self._main_conf = config.parseMainConf()
+        return self._main_conf
+
     def _namespacesGetCb(self, ns_map):
         self.ns_map = ns_map
 
@@ -1794,6 +1803,7 @@
         if default_dict:
             conf[u''] = default_dict
 
+    @defer.inlineCallbacks
     def backendReady(self, __):
         self.media_dir = self.bridge.getConfig("", "media_dir")
         self.local_dir = self.bridge.getConfig("", "local_dir")
@@ -1813,6 +1823,8 @@
         self.sat_root = default_root = LiberviaRootResource(
             host=self, host_name=u'', site_name=u'', site_path=default_site_path,
             path=self.html_dir)
+        tasks_manager = TasksManager(self, self.sat_root)
+        yield tasks_manager.runTasks()
         LiberviaPage.importPages(self, self.sat_root)
         # FIXME: handle _setMenu in a more generic way, taking care of external sites
         self.sat_root._setMenu(self.options["menu_json"])
@@ -1844,6 +1856,9 @@
                     site_name=site_name,
                     site_path=site_path,
                     path=root_path)
+                tasks_manager = TasksManager(self, res)
+                yield tasks_manager.runTasks()
+                res.putChild(C.BUILD_DIR, static.File(self.getBuildPath(site_name)))
             self.vhost_root.addHost(host_name.encode('utf-8'), res)
             LiberviaPage.importPages(self, res)
             # FIXME: default pages are accessible if not overriden by external website
@@ -2361,6 +2376,20 @@
         for root in self.roots:
             root.putChild(path, wrapped_res)
 
+    def getBuildPath(self, site_name):
+        """Generate build path for a given site name
+
+        @param site_name(unicode): name of the site
+        @return (unicode): path to the build directory
+        """
+        build_path_elts = [
+            config.getConfig(self.main_conf, "", "local_dir"),
+            C.CACHE_DIR,
+            C.LIBERVIA_CACHE,
+            regex.pathEscape(site_name)]
+        build_path = u"/".join(build_path_elts)
+        return os.path.abspath(os.path.expanduser(build_path))
+
     def getExtBaseURLData(self, request):
         """Retrieve external base URL Data