diff --git a/lib/ansible/modules/cloud/amazon/ecs_taskdefinition.py b/lib/ansible/modules/cloud/amazon/ecs_taskdefinition.py
index 6a24859ea7..7fa6669c45 100644
--- a/lib/ansible/modules/cloud/amazon/ecs_taskdefinition.py
+++ b/lib/ansible/modules/cloud/amazon/ecs_taskdefinition.py
@@ -51,6 +51,18 @@ options:
             - A list of containers definitions
         required: False
         type: list of dicts with container definitions
+    network_mode:
+        description:
+            - The Docker networking mode to use for the containers in the task.
+        required: false
+        default: bridge
+        choices: [ 'bridge', 'host', 'none' ]
+        version_added: 2.3
+    task_role_arn:
+        description:
+            - The Amazon Resource Name (ARN) of the IAM role that containers in this task can assume. All containers in this task are granted the permissions that are specified in this role.
+        required: false
+        version_added: 2.3
     volumes:
         description:
             - A list of names of volumes to be attached
@@ -137,7 +149,7 @@ class EcsTaskManager:
         except botocore.exceptions.ClientError:
             return None
 
-    def register_task(self, family, container_definitions, volumes):
+    def register_task(self, family, task_role_arn, network_mode, container_definitions, volumes):
         validated_containers = []
 
         # Ensures the number parameters are int as required by boto
@@ -154,8 +166,15 @@ class EcsTaskManager:
 
             validated_containers.append(container)
 
-        response = self.ecs.register_task_definition(family=family,
-            containerDefinitions=validated_containers, volumes=volumes)
+        try:
+            response = self.ecs.register_task_definition(family=family,
+                                                         taskRoleArn=task_role_arn,
+                                                         networkMode=network_mode,
+                                                         containerDefinitions=container_definitions,
+                                                         volumes=volumes)
+        except botocore.exceptions.ClientError as e:
+            self.module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
+
         return response['taskDefinition']
 
     def describe_task_definitions(self, family):
@@ -189,6 +208,7 @@ class EcsTaskManager:
         response = self.ecs.deregister_task_definition(taskDefinition=taskArn)
         return response['taskDefinition']
 
+
 def main():
 
     argument_spec = ec2_argument_spec()
@@ -198,8 +218,9 @@ def main():
         family=dict(required=False, type='str'),
         revision=dict(required=False, type='int'),
         containers=dict(required=False, type='list'),
-        volumes=dict(required=False, type='list')
-    ))
+        network_mode=dict(required=False, default='bridge', choices=['bridge', 'host', 'none'], type='str'),
+        task_role_arn=dict(required=False, default='', type='str'),
+        volumes=dict(required=False, type='list')))
 
     module = AnsibleModule(argument_spec=argument_spec, supports_check_mode=True)
 
@@ -325,7 +346,10 @@ def main():
                 # Doesn't exist. create it.
                 volumes = module.params.get('volumes', []) or []
                 results['taskdefinition'] = task_mgr.register_task(module.params['family'],
-                                                                   module.params['containers'], volumes)
+                                                                   module.params['task_role_arn'],
+                                                                   module.params['network_mode'],
+                                                                   module.params['containers'],
+                                                                   volumes)
             results['changed'] = True
 
     elif module.params['state'] == 'absent':
@@ -355,6 +379,5 @@ def main():
 
     module.exit_json(**results)
 
-
 if __name__ == '__main__':
     main()