Auth fail when creating a cluster from an EC2 instance
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                 Key: WHIRR-378
                 URL: https://issues.apache.org/jira/browse/WHIRR-378
             Project: Whirr
          Issue Type: Bug
          Components: service/hadoop
    Affects Versions: 0.6.0
            Reporter: Marc de Palol


There is a ssh auth problem when creating a hadoop cluster from an EC2 ubuntu 
instance. 

I've been using the same configuration file from an EC2 computer an a physical 
one, everything works fine in the physical one, but I keep getting this error 
in EC2: 

Running configuration script on nodes: [us-east-1/i-c7fde5a6, 
us-east-1/i-c9fde5a8, us-east-1/i-cbfde5aa]
<<authenticated>> woke to: net.schmizz.sshj.userauth.UserAuthException: 
publickey auth failed
<<authenticated>> woke to: net.schmizz.sshj.userauth.UserAuthException: 
publickey auth failed

The user in the virtual machine is new and with valid .ssh keys.

The hadoop config file is (omitting commented lines): 

whirr.cluster-name=hadoop
whirr.instance-templates=1 hadoop-namenode+hadoop-jobtracker,3 
hadoop-datanode+hadoop-tasktracker
whirr.provider=aws-ec2
whirr.identity=****
whirr.credential=****
whirr.hardware-id=c1.xlarge
whirr.image-id=us-east-1/ami-da0cf8b3
whirr.location-id=us-east-1


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