creating a new scaleway service extending s3 to resolve the direct upload acl problem

app/views/admin/communication/website/posts/show.html.erb

@@ -54,6 +54,8 @@
         </div>
         <div class="card-body">
           <%= image_tag @post.featured_image.variant(resize: '400'), class: 'img-fluid' %>
+          <%= @post.featured_image.url %>
+          <%= @post.featured_image.variant(resize: '400').url %>
         </div>
       </div>
     <% end %>

app/views/devise/two_factor_authentication/max_login_attempts_reached.html.erb

 <div class="alert alert-danger" role="alert">
   <%= t('devise.two_factor_authentication.max_login_attempts_reached').html_safe %>
 </div>
-<%= link_to t('devise.shared.links.sign_out'), destroy_user_session_path, class: "btn btn-danger" %>
+<%= link_to t('devise.shared.links.sign_out'), destroy_user_session_path, method: :delete, class: "btn btn-danger" %>

config/storage.yml

@@ -7,7 +7,7 @@ local:
   root: <%= Rails.root.join("storage") %>
 
 scaleway:
-  service: S3
+  service: Scaleway
   access_key_id: <%= ENV['SCALEWAY_OS_ACCESS_KEY_ID'] %>
   secret_access_key: <%= ENV['SCALEWAY_OS_SECRET_ACCESS_KEY'] %>
   region: <%= ENV['SCALEWAY_OS_REGION'] %>

lib/active_storage/service/scaleway_service.rb

+# frozen_string_literal: true
+
+require 'active_storage/service/s3_service.rb'
+
+module ActiveStorage
+  class Service::ScalewayService < Service::S3Service
+
+    def headers_for_direct_upload(key, content_type:, checksum:, filename: nil, disposition: nil, **)
+      content_disposition = content_disposition_with(type: disposition, filename: filename) if filename
+
+      headers = public? ? { "x-amz-acl" => "public-read" } : {}
+
+      headers.merge({ "Content-Type" => content_type, "Content-MD5" => checksum, "Content-Disposition" => content_disposition })
+    end
+  end
+end