Skeleton for the storage bootstrap.

We want to automate this, for example, when deploying in a docker
container.

A bunch of static files will be loaded into the storage, in order
to be served to the clients.

dudeswave/src/dudeswave_app.erl

@@ -25,7 +25,17 @@ start(_Type, StartArgs) ->
 	end,
 
 	{ok, Port} = application:get_env(port),
-	{ok, Bucket} = application:get_env(bucket),
+
+	Bucket = case application:get_env(bucket) of
+		{ok, V} -> V;
+		false -> dudeswave
+	end,
+
+	ok = case storage:create(Bucket) of
+		ok -> bootstrap(Bucket);
+		{error, {already_exists, Bucket, _}} -> ok;
+		_ -> exit(storage_bootstrap_failed)
+	end,
 
 	Dispatch = cowboy_router:compile([
 	    {'_', [{"/", dudeswave_handler, #{bucket => Bucket}}]}
@@ -41,4 +51,9 @@ start(_Type, StartArgs) ->
 	dudeswave_supervisor:start_link(StartArgs).
 
 stop(_State) ->
-	cowboy:stop_listener(dudeswave_listener).
+	cowboy:stop_listener(dudeswave_listener).
+
+%
+% Bootstrap procedure to be completed
+%
+bootstrap(_Bucket) -> ok.