Merge branch 'master' of github.com:open-cloud/xos
diff --git a/xos/configurations/cord/docker-compose.yml b/xos/configurations/cord/docker-compose.yml
index 21f30e4..83af3f9 100644
--- a/xos/configurations/cord/docker-compose.yml
+++ b/xos/configurations/cord/docker-compose.yml
@@ -20,7 +20,7 @@
 
 xos_synchronizer_onos:
     image: xosproject/xos-synchronizer-openstack
-    command: bash -c "sleep 120 ; python /opt/xos/observers/onos/onos-observer.py -C /opt/xos/observers/onos/onos_observer_config"
+    command: bash -c "sleep 120 ; python /opt/xos/synchronizers/onos/onos-synchronizer.py -C /opt/xos/synchronizers/onos/onos_synchronizer_config"
     labels:
         org.xosproject.kind: synchronizer
         org.xosproject.target: onos
@@ -34,7 +34,7 @@
 xos_synchronizer_vcpe:
     image: xosproject/xos-synchronizer-openstack
     #command: /usr/bin/supervisord -c /opt/xos/observers/vcpe/supervisor/vcpe-observer.conf
-    command: bash -c "sleep 120 ; python /opt/xos/observers/vcpe/vcpe-observer.py -C /opt/xos/observers/vcpe/vcpe_observer_config"
+    command: bash -c "sleep 120 ; python /opt/xos/synchronizers/vcpe/vcpe-synchronizer.py -C /opt/xos/synchronizers/vcpe/vcpe_synchronizer_config"
     labels:
         org.xosproject.kind: synchronizer
         org.xosproject.target: vcpe
@@ -48,7 +48,7 @@
         
 xos_synchronizer_vbng:
     image: xosproject/xos-synchronizer-openstack
-    command: bash -c "sleep 120 ; python /opt/xos/observers/vbng/vbng-observer.py -C /opt/xos/observers/vbng/vbng_observer_config"
+    command: bash -c "sleep 120 ; python /opt/xos/synchronizers/vbng/vbng-synchronizer.py -C /opt/xos/synchronizers/vbng/vbng_synchronizer_config"
     labels:
         org.xosproject.kind: synchronizer
         org.xosproject.target: vbng
@@ -60,7 +60,7 @@
 xos_synchronizer_monitoring_channel:
     image: xosproject/xos-synchronizer-openstack
     #command: /usr/bin/supervisord -c /opt/xos/observers/monitoring_channel/supervisor/monitoring_channel_observer.conf
-    command: bash -c "sleep 120 ; python /opt/xos/observers/monitoring_channel/monitoring_channel_observer.py -C /opt/xos/observers/monitoring_channel/monitoring_channel_observer_config"
+    command: bash -c "sleep 120 ; python /opt/xos/synchronizers/monitoring_channel/monitoring_channel_synchronizer.py -C /opt/xos/synchronizers/monitoring_channel/monitoring_channel_synchronizer_config"
     labels:
         org.xosproject.kind: synchronizer
         org.xosproject.target: monitoring_channel
diff --git a/xos/synchronizers/base/ansible.py b/xos/synchronizers/base/ansible.py
index fda2300..17a0c45 100644
--- a/xos/synchronizers/base/ansible.py
+++ b/xos/synchronizers/base/ansible.py
@@ -16,7 +16,7 @@
     step_dir = Config().observer_steps_dir
     sys_dir = Config().observer_sys_dir
 except:
-    step_dir = XOS_DIR + '/observer/steps'
+    step_dir = XOS_DIR + '/synchronizers/openstack/steps'
     sys_dir = '/opt/opencloud'
 
 os_template_loader = jinja2.FileSystemLoader( searchpath=step_dir)
diff --git a/xos/synchronizers/base/event_loop.py b/xos/synchronizers/base/event_loop.py
index 1e8942c..6cfc9f6 100644
--- a/xos/synchronizers/base/event_loop.py
+++ b/xos/synchronizers/base/event_loop.py
@@ -121,7 +121,7 @@
 			if hasattr(Config(), "observer_steps_dir"):
 				step_dir = Config().observer_steps_dir
 			else:
-				step_dir = XOS_DIR + "/observer/steps"
+				step_dir = XOS_DIR + "/synchronizers/openstack/steps"
 
 		for fn in os.listdir(step_dir):
 			pathname = os.path.join(step_dir,fn)
diff --git a/xos/synchronizers/base/xos-synchronizer.py b/xos/synchronizers/base/xos-synchronizer.py
new file mode 100644
index 0000000..3fffd33
--- /dev/null
+++ b/xos/synchronizers/base/xos-synchronizer.py
@@ -0,0 +1,82 @@
+#!/usr/bin/env python
+import os
+import argparse
+import sys
+
+sys.path.append('/opt/xos')
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "xos.settings")
+from synchronizers.base.backend import Backend
+from xos.config import Config, DEFAULT_CONFIG_FN
+from core.models import Instance
+from xos.logger import Logger, logging, logger
+from django.db import ProgrammingError
+import time
+
+try:
+    from django import setup as django_setup # django 1.7
+except:
+    django_setup = False
+
+config = Config()
+
+# after http://www.erlenstar.demon.co.uk/unix/faq_2.html
+def daemon():
+    """Daemonize the current process."""
+    if os.fork() != 0: os._exit(0)
+    os.setsid()
+    if os.fork() != 0: os._exit(0)
+    os.umask(0)
+    devnull = os.open(os.devnull, os.O_RDWR)
+    os.dup2(devnull, 0)
+    # xxx fixme - this is just to make sure that nothing gets stupidly lost - should use devnull
+    logdir=os.path.dirname(config.observer_logfile)
+    # when installed in standalone we might not have httpd installed
+    if not os.path.isdir(logdir): os.mkdir(logdir)
+    crashlog = os.open('%s'%config.observer_logfile, os.O_RDWR | os.O_APPEND | os.O_CREAT, 0644)
+    os.dup2(crashlog, 1)
+    os.dup2(crashlog, 2)
+
+    if hasattr(config, "observer_pidfile"):
+        pidfile = config.get("observer_pidfile")
+    else:
+        pidfile = "/var/run/xosobserver.pid"
+    try:
+        file(pidfile,"w").write(str(os.getpid()))
+    except:
+        print "failed to create pidfile %s" % pidfile
+
+def main():
+    # Generate command line parser
+    parser = argparse.ArgumentParser(usage='%(prog)s [options]')
+    parser.add_argument('-d', '--daemon', dest='daemon', action='store_true', default=False,
+                        help='Run as daemon.')
+    # smbaker: util/config.py parses sys.argv[] directly to get config file name; include the option here to avoid
+    #   throwing unrecognized argument exceptions
+    parser.add_argument('-C', '--config', dest='config_file', action='store', default=DEFAULT_CONFIG_FN,
+                        help='Name of config file.')
+    args = parser.parse_args()
+
+    if args.daemon: daemon()
+
+    if django_setup: # 1.7
+        django_setup()
+
+    models_active = False
+    wait = False
+    while not models_active:
+        try:
+            _ = Instance.objects.first()
+            models_active = True
+        except ProgrammingError:
+            logger.info('Waiting for data model to come up before starting...')
+            wait = True
+
+    if (wait):
+        time.sleep(60) # Safety factor, seeing that we stumbled waiting for the data model to come up.
+    backend = Backend()
+    backend.run()    
+
+if __name__ == '__main__':
+    
+    main() 
diff --git a/xos/synchronizers/helloworld/helloworld-observer.py b/xos/synchronizers/helloworld/helloworld-synchronizer.py
similarity index 70%
rename from xos/synchronizers/helloworld/helloworld-observer.py
rename to xos/synchronizers/helloworld/helloworld-synchronizer.py
index d6a71ff..84bec4f 100755
--- a/xos/synchronizers/helloworld/helloworld-observer.py
+++ b/xos/synchronizers/helloworld/helloworld-synchronizer.py
@@ -5,7 +5,7 @@
 import importlib
 import os
 import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../../synchronizers/base")
 sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
+mod = importlib.import_module("xos-synchronizer")
 mod.main()
diff --git a/xos/synchronizers/helloworld/helloworld_config b/xos/synchronizers/helloworld/helloworld_config
index e32ee0c..1f67242 100644
--- a/xos/synchronizers/helloworld/helloworld_config
+++ b/xos/synchronizers/helloworld/helloworld_config
@@ -37,7 +37,7 @@
 images_directory=/opt/xos/images
 dependency_graph=/opt/xos/model-deps
 logfile=/var/log/xos_backend.log
-steps_dir=/opt/xos/observers/helloworld/steps
+steps_dir=/opt/xos/synchronizers/helloworld/steps
 applist=helloworld
 
 [gui]
diff --git a/xos/synchronizers/helloworldservice_complete/helloworldservice-observer.py b/xos/synchronizers/helloworldservice_complete/helloworldservice-synchronizer.py
similarity index 67%
rename from xos/synchronizers/helloworldservice_complete/helloworldservice-observer.py
rename to xos/synchronizers/helloworldservice_complete/helloworldservice-synchronizer.py
index 75dcc46..95f4081 100755
--- a/xos/synchronizers/helloworldservice_complete/helloworldservice-observer.py
+++ b/xos/synchronizers/helloworldservice_complete/helloworldservice-synchronizer.py
@@ -7,7 +7,7 @@
 import os
 import sys
 observer_path = os.path.join(os.path.dirname(
-    os.path.realpath(__file__)), "../..")
+    os.path.realpath(__file__)), "../../synchronizers/base")
 sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
+mod = importlib.import_module("xos-synchronizer")
 mod.main()
diff --git a/xos/synchronizers/helloworldservice_complete/helloworldservice_config b/xos/synchronizers/helloworldservice_complete/helloworldservice_config
index 716e3a0..b779d0e 100644
--- a/xos/synchronizers/helloworldservice_complete/helloworldservice_config
+++ b/xos/synchronizers/helloworldservice_complete/helloworldservice_config
@@ -17,7 +17,7 @@
 # This is the location to the dependency graph you generate
 dependency_graph=/opt/xos/observers/helloworldservice_complete/model-deps
 # The location of your SyncSteps
-steps_dir=/opt/xos/observers/helloworldservice_complete/steps
+steps_dir=/opt/xos/synchronizers/helloworldservice_complete/steps
 # A temporary directory that will be used by ansible
 sys_dir=/opt/xos/observers/helloworldservice_complete/sys
 # Location of the file to save logging messages to the backend log is often used
diff --git a/xos/synchronizers/hpc/hpc-observer.py b/xos/synchronizers/hpc/hpc-synchronizer.py
similarity index 71%
rename from xos/synchronizers/hpc/hpc-observer.py
rename to xos/synchronizers/hpc/hpc-synchronizer.py
index d6a71ff..84bec4f 100755
--- a/xos/synchronizers/hpc/hpc-observer.py
+++ b/xos/synchronizers/hpc/hpc-synchronizer.py
@@ -5,7 +5,7 @@
 import importlib
 import os
 import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../../synchronizers/base")
 sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
+mod = importlib.import_module("xos-synchronizer")
 mod.main()
diff --git a/xos/synchronizers/hpc/hpc_observer_config b/xos/synchronizers/hpc/hpc_synchronizer_config
similarity index 74%
rename from xos/synchronizers/hpc/hpc_observer_config
rename to xos/synchronizers/hpc/hpc_synchronizer_config
index 326e731..9d4e70a 100644
--- a/xos/synchronizers/hpc/hpc_observer_config
+++ b/xos/synchronizers/hpc/hpc_synchronizer_config
@@ -23,9 +23,9 @@
 
 [observer]
 name=hpc
-dependency_graph=/opt/xos/observers/hpc/model-deps
-steps_dir=/opt/xos/observers/hpc/steps
-deleters_dir=/opt/xos/observers/hpc/deleters
+dependency_graph=/opt/xos/synchronizers/hpc/model-deps
+steps_dir=/opt/xos/synchronizers/hpc/steps
+deleters_dir=/opt/xos/synchronizers/hpc/deleters
 log_file=console
 #/var/log/hpc.log
 driver=None
diff --git a/xos/synchronizers/monitoring_channel/monitoring_channel_observer.py b/xos/synchronizers/monitoring_channel/monitoring_channel_observer.py
deleted file mode 100755
index d6a71ff..0000000
--- a/xos/synchronizers/monitoring_channel/monitoring_channel_observer.py
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env python
-
-# This imports and runs ../../xos-observer.py
-
-import importlib
-import os
-import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
-sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
-mod.main()
diff --git a/xos/synchronizers/helloworld/helloworld-observer.py b/xos/synchronizers/monitoring_channel/monitoring_channel_synchronizer.py
similarity index 70%
copy from xos/synchronizers/helloworld/helloworld-observer.py
copy to xos/synchronizers/monitoring_channel/monitoring_channel_synchronizer.py
index d6a71ff..84bec4f 100755
--- a/xos/synchronizers/helloworld/helloworld-observer.py
+++ b/xos/synchronizers/monitoring_channel/monitoring_channel_synchronizer.py
@@ -5,7 +5,7 @@
 import importlib
 import os
 import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../../synchronizers/base")
 sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
+mod = importlib.import_module("xos-synchronizer")
 mod.main()
diff --git a/xos/synchronizers/monitoring_channel/monitoring_channel_observer_config b/xos/synchronizers/monitoring_channel/monitoring_channel_synchronizer_config
similarity index 68%
rename from xos/synchronizers/monitoring_channel/monitoring_channel_observer_config
rename to xos/synchronizers/monitoring_channel/monitoring_channel_synchronizer_config
index 5657e1d..8c6578f 100644
--- a/xos/synchronizers/monitoring_channel/monitoring_channel_observer_config
+++ b/xos/synchronizers/monitoring_channel/monitoring_channel_synchronizer_config
@@ -23,10 +23,10 @@
 
 [observer]
 name=monitoring_channel
-dependency_graph=/opt/xos/observers/monitoring_channel/model-deps
-steps_dir=/opt/xos/observers/monitoring_channel/steps
-sys_dir=/opt/xos/observers/monitoring_channel/sys
-deleters_dir=/opt/xos/observers/monitoring_channel/deleters
+dependency_graph=/opt/xos/synchronizers/monitoring_channel/model-deps
+steps_dir=/opt/xos/synchronizers/monitoring_channel/steps
+sys_dir=/opt/xos/synchronizers/monitoring_channel/sys
+deleters_dir=/opt/xos/synchronizers/monitoring_channel/deleters
 log_file=console
 driver=None
 pretend=False
diff --git a/xos/synchronizers/onos/onos-observer.py b/xos/synchronizers/onos/onos-observer.py
deleted file mode 100755
index d6a71ff..0000000
--- a/xos/synchronizers/onos/onos-observer.py
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env python
-
-# This imports and runs ../../xos-observer.py
-
-import importlib
-import os
-import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
-sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
-mod.main()
diff --git a/xos/synchronizers/helloworld/helloworld-observer.py b/xos/synchronizers/onos/onos-synchronizer.py
similarity index 70%
copy from xos/synchronizers/helloworld/helloworld-observer.py
copy to xos/synchronizers/onos/onos-synchronizer.py
index d6a71ff..84bec4f 100755
--- a/xos/synchronizers/helloworld/helloworld-observer.py
+++ b/xos/synchronizers/onos/onos-synchronizer.py
@@ -5,7 +5,7 @@
 import importlib
 import os
 import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../../synchronizers/base")
 sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
+mod = importlib.import_module("xos-synchronizer")
 mod.main()
diff --git a/xos/synchronizers/onos/onos_observer_config b/xos/synchronizers/onos/onos_synchronizer_config
similarity index 72%
rename from xos/synchronizers/onos/onos_observer_config
rename to xos/synchronizers/onos/onos_synchronizer_config
index 3c6d63d..c6ceece 100644
--- a/xos/synchronizers/onos/onos_observer_config
+++ b/xos/synchronizers/onos/onos_synchronizer_config
@@ -23,10 +23,10 @@
 
 [observer]
 name=onos
-dependency_graph=/opt/xos/observers/onos/model-deps
-steps_dir=/opt/xos/observers/onos/steps
-sys_dir=/opt/xos/observers/onos/sys
-deleters_dir=/opt/xos/observers/onos/deleters
+dependency_graph=/opt/xos/synchronizers/onos/model-deps
+steps_dir=/opt/xos/synchronizers/onos/steps
+sys_dir=/opt/xos/synchronizers/onos/sys
+deleters_dir=/opt/xos/synchronizers/onos/deleters
 log_file=console
 driver=None
 pretend=False
diff --git a/xos/synchronizers/requestrouter/rr_observer_config b/xos/synchronizers/requestrouter/rr_synchronizer_config
similarity index 70%
rename from xos/synchronizers/requestrouter/rr_observer_config
rename to xos/synchronizers/requestrouter/rr_synchronizer_config
index ec3a1ba..179540e 100644
--- a/xos/synchronizers/requestrouter/rr_observer_config
+++ b/xos/synchronizers/requestrouter/rr_synchronizer_config
@@ -24,9 +24,9 @@
 nova_enabled=True
 
 [observer]
-dependency_graph=/opt/xos/observers/requestrouter/model-deps
-steps_dir=/opt/xos/observers/requestrouter/steps
-deleters_dir=/opt/xos/observers/requestrouter/deleters
+dependency_graph=/opt/xos/synchronizers/requestrouter/model-deps
+steps_dir=/opt/xos/synchronizers/requestrouter/steps
+deleters_dir=/opt/xos/synchronizers/requestrouter/deleters
 log_file=console
 #/var/log/hpc.log
 driver=None
diff --git a/xos/synchronizers/syndicate/syndicate_observer_config b/xos/synchronizers/syndicate/syndicate_synchronizer_config
similarity index 71%
rename from xos/synchronizers/syndicate/syndicate_observer_config
rename to xos/synchronizers/syndicate/syndicate_synchronizer_config
index 7e6d78a..7c9d2d2 100644
--- a/xos/synchronizers/syndicate/syndicate_observer_config
+++ b/xos/synchronizers/syndicate/syndicate_synchronizer_config
@@ -24,9 +24,9 @@
 nova_enabled=True
 
 [observer]
-dependency_graph=/opt/xos/observers/syndicate/model-deps
-steps_dir=/opt/xos/observers/syndicate/steps
-deleters_dir=/opt/xos/observers/syndicate/deleters
+dependency_graph=/opt/xos/synchronizers/syndicate/model-deps
+steps_dir=/opt/xos/synchronizers/syndicate/steps
+deleters_dir=/opt/xos/synchronizers/syndicate/deleters
 log_file=console
 driver=None
 
diff --git a/xos/synchronizers/vbng/vbng-observer.py b/xos/synchronizers/vbng/vbng-observer.py
deleted file mode 100755
index d6a71ff..0000000
--- a/xos/synchronizers/vbng/vbng-observer.py
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env python
-
-# This imports and runs ../../xos-observer.py
-
-import importlib
-import os
-import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
-sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
-mod.main()
diff --git a/xos/synchronizers/helloworld/helloworld-observer.py b/xos/synchronizers/vbng/vbng-synchronizer.py
similarity index 70%
copy from xos/synchronizers/helloworld/helloworld-observer.py
copy to xos/synchronizers/vbng/vbng-synchronizer.py
index d6a71ff..84bec4f 100755
--- a/xos/synchronizers/helloworld/helloworld-observer.py
+++ b/xos/synchronizers/vbng/vbng-synchronizer.py
@@ -5,7 +5,7 @@
 import importlib
 import os
 import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../../synchronizers/base")
 sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
+mod = importlib.import_module("xos-synchronizer")
 mod.main()
diff --git a/xos/synchronizers/vbng/vbng_observer_config b/xos/synchronizers/vbng/vbng_synchronizer_config
similarity index 69%
rename from xos/synchronizers/vbng/vbng_observer_config
rename to xos/synchronizers/vbng/vbng_synchronizer_config
index b75d498..d613ce3 100644
--- a/xos/synchronizers/vbng/vbng_observer_config
+++ b/xos/synchronizers/vbng/vbng_synchronizer_config
@@ -23,10 +23,10 @@
 
 [observer]
 name=vbng
-dependency_graph=/opt/xos/observers/vbng/model-deps
-steps_dir=/opt/xos/observers/vbng/steps
-sys_dir=/opt/xos/observers/vbng/sys
-deleters_dir=/opt/xos/observers/vbng/deleters
+dependency_graph=/opt/xos/synchronizers/vbng/model-deps
+steps_dir=/opt/xos/synchronizers/vbng/steps
+sys_dir=/opt/xos/synchronizers/vbng/sys
+deleters_dir=/opt/xos/synchronizers/vbng/deleters
 log_file=console
 #/var/log/hpc.log
 driver=None
diff --git a/xos/synchronizers/vcpe/vcpe-observer.py b/xos/synchronizers/vcpe/vcpe-observer.py
deleted file mode 100755
index d6a71ff..0000000
--- a/xos/synchronizers/vcpe/vcpe-observer.py
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env python
-
-# This imports and runs ../../xos-observer.py
-
-import importlib
-import os
-import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
-sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
-mod.main()
diff --git a/xos/synchronizers/helloworld/helloworld-observer.py b/xos/synchronizers/vcpe/vcpe-synchronizer.py
similarity index 70%
copy from xos/synchronizers/helloworld/helloworld-observer.py
copy to xos/synchronizers/vcpe/vcpe-synchronizer.py
index d6a71ff..84bec4f 100755
--- a/xos/synchronizers/helloworld/helloworld-observer.py
+++ b/xos/synchronizers/vcpe/vcpe-synchronizer.py
@@ -5,7 +5,7 @@
 import importlib
 import os
 import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../../synchronizers/base")
 sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
+mod = importlib.import_module("xos-synchronizer")
 mod.main()
diff --git a/xos/synchronizers/vcpe/vcpe_observer_config b/xos/synchronizers/vcpe/vcpe_synchronizer_config
similarity index 73%
rename from xos/synchronizers/vcpe/vcpe_observer_config
rename to xos/synchronizers/vcpe/vcpe_synchronizer_config
index d2c9239..110b8e2 100644
--- a/xos/synchronizers/vcpe/vcpe_observer_config
+++ b/xos/synchronizers/vcpe/vcpe_synchronizer_config
@@ -23,10 +23,10 @@
 
 [observer]
 name=vcpe
-dependency_graph=/opt/xos/observers/vcpe/model-deps
-steps_dir=/opt/xos/observers/vcpe/steps
-sys_dir=/opt/xos/observers/vcpe/sys
-deleters_dir=/opt/xos/observers/vcpe/deleters
+dependency_graph=/opt/xos/synchronizers/vcpe/model-deps
+steps_dir=/opt/xos/synchronizers/vcpe/steps
+sys_dir=/opt/xos/synchronizers/vcpe/sys
+deleters_dir=/opt/xos/synchronizers/vcpe/deleters
 log_file=console
 #/var/log/hpc.log
 driver=None
diff --git a/xos/synchronizers/vtn/vtn-observer.py b/xos/synchronizers/vtn/vtn-synchronizer.py
similarity index 71%
rename from xos/synchronizers/vtn/vtn-observer.py
rename to xos/synchronizers/vtn/vtn-synchronizer.py
index d6a71ff..84bec4f 100755
--- a/xos/synchronizers/vtn/vtn-observer.py
+++ b/xos/synchronizers/vtn/vtn-synchronizer.py
@@ -5,7 +5,7 @@
 import importlib
 import os
 import sys
-observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../..")
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),"../../synchronizers/base")
 sys.path.append(observer_path)
-mod = importlib.import_module("xos-observer")
+mod = importlib.import_module("xos-synchronizer")
 mod.main()
diff --git a/xos/synchronizers/vtn/vtn_observer_config b/xos/synchronizers/vtn/vtn_synchronizer_config
similarity index 70%
rename from xos/synchronizers/vtn/vtn_observer_config
rename to xos/synchronizers/vtn/vtn_synchronizer_config
index 19e9a39..302a096 100644
--- a/xos/synchronizers/vtn/vtn_observer_config
+++ b/xos/synchronizers/vtn/vtn_synchronizer_config
@@ -23,10 +23,10 @@
 
 [observer]
 name=vtn
-dependency_graph=/opt/xos/observers/vtn/model-deps
-steps_dir=/opt/xos/observers/vtn/steps
-sys_dir=/opt/xos/observers/vtn/sys
-deleters_dir=/opt/xos/observers/vtn/deleters
+dependency_graph=/opt/xos/synchronizers/vtn/model-deps
+steps_dir=/opt/xos/synchronizers/vtn/steps
+sys_dir=/opt/xos/synchronizers/vtn/sys
+deleters_dir=/opt/xos/synchronizers/vtn/deleters
 log_file=console
 #/var/log/hpc.log
 driver=None