[chef] Run Chef in another user

[< >]

hello,

I'm trying to deploy a software tha has to be install in a expecific user

when I try this, the user doesn't change(stays root). 

execute 'install_scos' do
  cwd  '/home/S2K'
 command "/opt/platform3pp/MICONYS/SCOS/S2K-5-5-1-issue-1/installMission.PARC
-c=Single -p=Standalone_single -z=Multi
/opt/platform3pp/MICONYS/SCOS/S2K-5-5-1-issue-1/SDCF_MCNYS61.xml"
  user 'S2K'
  group 'users'
  action :run


Is there a way that i can why chef login in another user., and run commands in
there? 
this has to be done in that user because it uses a diferente shell (tcsh).