Rakefile in dockerfile-rails-1.2.1 vs Rakefile in dockerfile-rails-1.2.2

@@ -14,6 +14,33 @@
 namespace :test do
   task :capture do
     ENV["TEST_CAPTURE"] = "true"
     Rake::Task[:test].invoke
   end
+
+  task :rubocop do
+    sh "rubocop"
+  end
+
+  task :system do
+    rm_rf "test/tmp/system_test"
+    Dir.chdir "test/tmp" do
+      sh "rails new system_test --javascript esbuild"
+      Dir.chdir "system_test"
+      sh "bundle config disable_local_branch_check true"
+      sh "bundle config set --local local.dockerfile-rails #{__dir__}"
+      sh "bundle add dockerfile-rails --group development " +
+        "--git https://github.com/rubys/dockerfile-rails.git"
+      sh "bin/rails generate dockerfile"
+      cp "#{__dir__}/test/docker-entrypoint", "bin"
+      IO.write "config/routes.rb",
+        'Rails.application.routes.draw {get "/up", to: proc {[200, {}, ["ok"]]}}'
+      sh "docker buildx build . --load -t system:test"
+      key = IO.read("config/master.key")
+      sh "docker run -p 3000:3000 -e RAILS_MASTER_KEY=#{key} system:test"
+    end
+  ensure
+    rm_rf "test/tmp/system_test"
+  end
+
+  task all: %w(test:rubocop test test:system)
 end