inside config/application.rb
config.lograge.enabled = true
config.lograge.ignore_actions = %w[ActiveStorage::DiskController#show ActiveStorage::RepresentationsController#show]
create a dir config/initializers/rails_patches
inside config/initializers/rails_patches/active_storage.rb
ActiveStorage.logger = Logger.new('/dev/null')
# or if you have the null-logger gem installed, which should be faster
# ActiveStorage.logger = NullLogger.new