my_workstation/cookbooks/gateway/recipes/_system_patch.rb

#
# Cookbook:: gateway
# Recipe:: _system_patch
#
# Copyright:: 2022, The Authors, All Rights Reserved.
#

patch_files = %w{
  0001-Fix-dkms-doesn-t-remove-modules.patch
}

patch_files.each do |patch_file|
  cache_path = ::File.join(::Chef::Config[:file_cache_path], patch_file)
  cookbook_file cache_path do
    source patch_file
  end

  execute "/usr/bin/git am #{cache_path}" do
    only_if "/usr/bin/git apply #{cache_path} --check"
    cwd '/etc'
  end
end