Add Workflow for building and releasing Docker image

config/environment.rb

@@ -1,5 +1,19 @@
 # Load the Rails application.
 require_relative "application"
 
+# Replace when upgrading to Rails 7.1
+# See https://github.com/rails/rails/issues/32947#issuecomment-1356391185
+class Rails::Application
+  def secret_key_base
+    if Rails.env.development? || Rails.env.test? || ENV["SECRET_KEY_BASE_DUMMY"]
+      secrets.secret_key_base ||= generate_development_secret
+    else
+      validate_secret_key_base(
+        ENV["SECRET_KEY_BASE"] || credentials.secret_key_base || secrets.secret_key_base
+      )
+    end
+  end
+end
+
 # Initialize the Rails application.
 Rails.application.initialize!