Had to swap to minio to let it act as a cdn. Working file uploads.

lib/mixer/posts/media_uploader.ex

@@ -13,7 +13,7 @@ defmodule Mixer.Posts.MediaUploader do
   def storage_dir(_version, {_file, scope}), do: "uploads/media/#{scope.id}"
 
   def filename(_version, {file, _scope}) do
-    Path.basename(file.file_name)
+    Path.basename(file.file_name, Path.extname(file.file_name))
   end
 
   def s3_object_headers(_version, {file, _scope}) do

lib/mixer_web/controllers/page_controller.ex

@@ -6,8 +6,14 @@ defmodule MixerWeb.PageController do
   end
 
   def index(conn, _params) do
+    asset_host = Application.get_env(:waffle, :asset_host, "http://localhost:3900")
+    bucket = Application.get_env(:waffle, :bucket, "mixer-bucket")
+
     conn
     |> put_root_layout(html: {MixerWeb.Layouts, :spa_root})
-    |> render(:index, current_user: conn.assigns[:current_user])
+    |> render(:index,
+        current_user: conn.assigns[:current_user],
+        media_host: "#{asset_host}/#{bucket}"
+      )
   end
 end

lib/mixer_web/controllers/page_html/index.html.heex

@@ -1,4 +1,5 @@
 <div id="app"
     data-current-user-id={if @current_user, do: @current_user.id, else: ""}
-    data-current-user-email={if @current_user, do: @current_user.email, else: ""}>
+    data-current-user-email={if @current_user, do: @current_user.email, else: ""}
+    data-asset-host={@media_host}>
 </div>