jenkins_slaves_ips = {
                    00                  =>  "192.168.54.5",
                    01                  =>  "192.168.54.6",
                    02                  =>  "192.168.54.7",
                }

How to loop over this hash ?

jenkins_slaves_ips.each |nb|
  puts "#{nb}"
end


=>

c:/code/v1/mvp0-level0/Vagrantfile:220: syntax error, unexpected tSTRING_BEG, expecting keyword_do or '{' or '('
                    puts "#{nb}"
                          ^
c:/code/v1/mvp0-level0/Vagrantfile:224: syntax error, unexpected keyword_end, expecting end-of-input