add configuration for fallback storage provider

src/lib.rs

@@ -127,7 +127,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     spec_name: create_runtime_str!("joystream-node"),
     impl_name: create_runtime_str!("joystream-node"),
     authoring_version: 4,
-    spec_version: 1,
+    spec_version: 3,
     impl_version: 0,
     apis: RUNTIME_API_VERSIONS,
 };

src/storage/data_directory.rs

@@ -117,6 +117,11 @@ decl_storage! {
 
         MetadataByContentId get(metadata_by_content_id):
             map T::ContentId => Option<ContentMetadata<T>>;
+
+        // Default storage provider address
+        pub StorageProviderAddress get(storage_provider_address): Vec<u8>;
+        // Default storage provider repository id
+        pub StorageProviderRepoId get(storage_provider_repo_id): Vec<u8>;
     }
 }
 
@@ -258,11 +263,20 @@ decl_module! {
             <MetadataByContentId<T>>::insert(&content_id, meta);
             Self::deposit_event(RawEvent::MetadataUpdated(content_id, who));
         }
+
+        // Sudo methods
+
+        fn set_storage_provider_repo_id(repo_id: Vec<u8>) {
+            <StorageProviderRepoId<T>>::put(repo_id);
+        }
+
+        fn set_storage_provider_address(address: Vec<u8>) {
+            <StorageProviderAddress<T>>::put(address);
+        }
     }
 }
 
 impl<T: Trait> ContentIdExists<T> for Module<T> {
-
     fn has_content(content_id: &T::ContentId) -> bool {
         Self::data_object_by_content_id(content_id.clone()).is_some()
     }