add synchronizer and tosca files for vPGWC

Change-Id: I3f02594390a50d01820bcddb76f2a0a17e768db1
diff --git a/xos/synchronizer/steps/sync_vpgwc.py b/xos/synchronizer/steps/sync_vpgwc.py
new file mode 100644
index 0000000..48d80c9
--- /dev/null
+++ b/xos/synchronizer/steps/sync_vpgwc.py
@@ -0,0 +1,37 @@
+import os
+import sys
+from django.db.models import Q, F
+from services.vpgwc.models import MCORDService, VPGWCComponent
+from synchronizers.base.SyncInstanceUsingAnsible import SyncInstanceUsingAnsible
+
+parentdir = os.path.join(os.path.dirname(__file__), "..")
+sys.path.insert(0, parentdir)
+
+class SyncVPGWCComponent(SyncInstanceUsingAnsible):
+
+    provides = [VPGWCComponent]
+
+    observes = VPGWCComponent
+
+    requested_interval = 0
+
+    template_name = "sync_vpgwc.yaml"
+
+    service_key_name = "/opt/xos/configurations/mcord/mcord_private_key"
+
+    def __init__(self, *args, **kwargs):
+        super(SyncVPGWCComponent, self).__init__(*args, **kwargs)
+
+    def fetch_pending(self, deleted):
+
+        if (not deleted):
+            objs = VPGWCComponent.get_tenant_objects().filter(
+                Q(enacted__lt=F('updated')) | Q(enacted=None), Q(lazy_blocked=False))
+        else:
+
+            objs = VPGWCComponent.get_deleted_tenant_objects()
+
+        return objs
+
+    def get_extra_attributes(self, o):
+        return {"display_message": o.display_message, "s5s8_pgw_tag": o.s5s8_pgw_tag}
diff --git a/xos/synchronizer/steps/sync_vpgwc.yaml b/xos/synchronizer/steps/sync_vpgwc.yaml
new file mode 100644
index 0000000..a793976
--- /dev/null
+++ b/xos/synchronizer/steps/sync_vpgwc.yaml
@@ -0,0 +1,13 @@
+---
+- hosts: {{ instance_name }}
+  gather_facts: False
+  connection: ssh
+  user: ubuntu
+  sudo: yes
+  tasks:
+
+  - name: write message
+    shell: echo "{{ display_message }}" > /var/tmp/index.html
+
+  - name: setup s5s8_pgw interface config
+    shell: ./start_3gpp_int.sh eth1 {{ s5s8_pgw_tag }} {{ s5s8_pgw_ip }}/24