install genisoimage package on cnodes
create /etc/nova before creating policy.json
install open-iscsi-utils packages on cnodes
Merge pull request #30 from chamankang/develop

Develop
install open-iscsi package instead of open-iscsi-utils
Merge branch 'develop' of github.com:cloudware-cookbooks/ktc-compute into develop
Merge pull request #31 from chamankang/develop

Develop