edit_dockerfile

# File railties/lib/rails/generators/rails/db/system/change/change_generator.rb, line 47
          def edit_dockerfile
            dockerfile_path = File.expand_path("Dockerfile", destination_root)
            return unless File.exist?(dockerfile_path)

            gsub_file("Dockerfile", all_docker_bases_regex, docker_base_packages(database.base_package))
            gsub_file("Dockerfile", all_docker_builds_regex, docker_build_packages(database.build_package))
          end