feat(backups): expose if the service can be backed up

selfprivacy_api/graphql/common_types/service.py

@@ -93,6 +93,7 @@ class Service:
     is_movable: bool
     is_required: bool
     is_enabled: bool
+    can_be_backed_up: bool
     status: ServiceStatusEnum
     url: typing.Optional[str]
     dns_records: typing.Optional[typing.List[DnsRecord]]
@@ -124,6 +125,7 @@ def service_to_graphql_service(service: ServiceInterface) -> Service:
         is_movable=service.is_movable(),
         is_required=service.is_required(),
         is_enabled=service.is_enabled(),
+        can_be_backed_up=service.can_be_backed_up(),
         status=ServiceStatusEnum(service.get_status().value),
         url=service.get_url(),
         dns_records=[

selfprivacy_api/services/ocserv/__init__.py

@@ -44,6 +44,10 @@ class Ocserv(Service):
     def is_required() -> bool:
         return False
 
+    @staticmethod
+    def can_be_backed_up() -> bool:
+        return False
+
     @staticmethod
     def is_enabled() -> bool:
         with ReadUserData() as user_data:

selfprivacy_api/services/service.py

@@ -81,6 +81,10 @@ class Service(ABC):
     def is_required() -> bool:
         pass
 
+    @staticmethod
+    def can_be_backed_up() -> bool:
+        return True
+
     @staticmethod
     @abstractmethod
     def is_enabled() -> bool: