Everytime I installed Cloudstack I had to limit my tests to the bundled Centos 5.5 template, which is not the best one around.
For this reason I created a nice and clean minimal CentOS6 64bit template that has the password and ssh key init scripts installed and functional.
You can download it from here:
Make sure to consult the README file.
ToolsShow the IP address
Random password generator
ProjectsRepos - My RPM repositories for CentOS/(RH)EL
Linux LiveCDs - My CentOS based remixes
OpenVM.EU - Linux templates & appliances for Cloudstack