Update openvswitch_port with tag feature (#2522)

* Update openvswitch_port with tag feature

Possibility to create a port with VLAN tag.

* Update openvswitch_port.py

network/openvswitch_port.py

@@ -40,6 +40,11 @@ options:
         required: true
         description:
             - Name of port to manage on the bridge
+    tag:
+        version_added: 2.2
+        required: false
+        description:
+            - VLAN tag for this port
     state:
         required: false
         default: "present"
@@ -73,6 +78,10 @@ EXAMPLES = '''
 - openvswitch_port: bridge=bridge-loop port=eth6 state=present
                     set="Interface eth6 ofport_request=6"
 
+# Creates port vlan10 with tag 10 on bridge br-ex
+- openvswitch_port: bridge=br-ex port=vlan10 tag=10 state=present
+                    set="Interface vlan10 type=internal"
+
 # Assign interface id server1-vifeth6 and mac address 52:54:00:30:6d:11
 # to port vifeth6 and setup port to be managed by a controller.
 - openvswitch_port: bridge=br-int port=vifeth6 state=present
@@ -118,6 +127,7 @@ class OVSPort(object):
         self.module = module
         self.bridge = module.params['bridge']
         self.port = module.params['port']
+        self.tag = module.params['tag']
         self.state = module.params['state']
         self.timeout = module.params['timeout']
         self.set_opt = module.params.get('set', None)
@@ -167,6 +177,8 @@ class OVSPort(object):
     def add(self):
         '''Add the port'''
         cmd = ['add-port', self.bridge, self.port]
+        if self.tag:
+            cmd += ["tag=" + self.tag]
         if self.set and self.set_opt:
             cmd += ["--", "set"]
             cmd += self.set_opt.split(" ")
@@ -235,6 +247,7 @@ def main():
         argument_spec={
             'bridge': {'required': True},
             'port': {'required': True},
+            'tag': {'required': False},
             'state': {'default': 'present', 'choices': ['present', 'absent']},
             'timeout': {'default': 5, 'type': 'int'},
             'set': {'required': False, 'default': None},