default[:omnibus_updater][:version] = nil
default[:omnibus_updater][:force_latest] = false
default[:omnibus_updater][:cache_dir] = '/opt'
default[:omnibus_updater][:cache_omnibus_installer] = false
default[:omnibus_updater][:remove_chef_system_gem] = false
default[:omnibus_updater][:prerelease] = false
default[:omnibus_updater][:disabled] = false
default[:omnibus_updater][:kill_chef_on_upgrade] = true
default[:omnibus_updater][:always_download] = false
default[:omnibus_updater][:prevent_downgrade] = false
default[:omnibus_updater][:restart_chef_service] = false
default[:omnibus_updater][:checksum] = nil

default[:omnibus_updater][:version] = nil
default[:omnibus_updater][:force_latest] = false
default[:omnibus_updater][:cache_dir] = "#{Chef::Config[:file_cache_path]}"
default[:omnibus_updater][:cache_omnibus_installer] = false
default[:omnibus_updater][:remove_chef_system_gem] = false
default[:omnibus_updater][:prerelease] = false
default[:omnibus_updater][:disabled] = false
default[:omnibus_updater][:kill_chef_on_upgrade] = true
default[:omnibus_updater][:always_download] = false
default[:omnibus_updater][:prevent_downgrade] = false
default[:omnibus_updater][:restart_chef_service] = false
default[:omnibus_updater][:checksum] = nil

Use file_cache_path path to store chef-client
Use file_cache_path path to store chef-client

Use file_cache_path path to store chef-client instead of /opt