Install Chef for test

gistfile1.txt

[vagrant@localhost ~]$ cat /etc/redhat-release
CentOS release 6.6 (Final)

[vagrant@localhost ~]$ wget https://opscode-omnibus-packages.s3.amazonaws.com/el/6/x86_64/chefdk-0.9.0-1.el6.x86_64.rpm --no-check-certificate
[vagrant@localhost ~]$ sudo rpm --install chefdk-0.9.0-1.el6.x86_64.rpm

[vagrant@localhost ~]$ sudo chef gem install knife-zero --no-document

[root@localhost ~]# ssh-keygen -N ''
[root@localhost ~]# cp ~/.ssh/{id_rsa.pub,authorized_keys}