Allow to add more groups to github_webhook_service_user

Signed-off-by: Alexis Pentori <alexis@status.im>

README.md

@@ -21,3 +21,5 @@ github_webhook_repo_branch:
 The `github_webhook_secret` is generated when configuring the webhook in the repository.
 
 The public key associated to `github_webhook_ssh_key` has to be added as a Deploy key in the repository setting.
+
+The user `github_webhook_service_user` can be added to additional group by overriding the list `github_webhook_user_additional_group`.

defaults/main.yml

@@ -28,3 +28,5 @@ github_webhook_dependencies:
 #github_webhook_repo_url: ~
 #github_webhook_repo_branch: ~
 
+github_wehbook_user_additional_group: 
+  - 'www-data'

tasks/user.yml

@@ -8,7 +8,7 @@
   user:
     name: '{{ github_webhook_service_user }}'
     group: '{{ github_webhook_service_user }}'
-    groups: ['www-data']
+    groups: '{{ github_webhook_user_addtional_group }}'
     uid: '{{ github_webhook_service_user_uid }}'
     create_home: true
     comment: 'Airflow Webhook User'