check out the repository on the host fails

[shamimgeek]

TASK: [check out the repository on the host] **********************************
<127.0.0.1> ESTABLISH CONNECTION FOR USER: vagrant
<127.0.0.1> REMOTE_MODULE git repo= dest=/home/vagrant/mezzanine-example/project accept_hostkey=yes
<127.0.0.1> EXEC ssh -C -tt -vvv -o ControlMaster=auto -o ControlPersist=60s -o ForwardAgent=yes -o ControlPath="/home/shamim/.ansible/cp/ansible-ssh-%h-%p-%r" -o StrictHostKeyChecking=no -o Port=2222 -o IdentityFile=".vagrant/machines/default/virtualbox/private_key" -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o User=vagrant -o ConnectTimeout=10 127.0.0.1 /bin/sh -c 'mkdir -p $HOME/.ansible/tmp/ansible-tmp-1451338151.66-149952547135034 && chmod a+rx $HOME/.ansible/tmp/ansible-tmp-1451338151.66-149952547135034 && echo $HOME/.ansible/tmp/ansible-tmp-1451338151.66-149952547135034'
<127.0.0.1> PUT /tmp/tmp7x4cMC TO /home/vagrant/.ansible/tmp/ansible-tmp-1451338151.66-149952547135034/git
<127.0.0.1> EXEC ssh -C -tt -vvv -o ControlMaster=auto -o ControlPersist=60s -o ForwardAgent=yes -o ControlPath="/home/shamim/.ansible/cp/ansible-ssh-%h-%p-%r" -o StrictHostKeyChecking=no -o Port=2222 -o IdentityFile=".vagrant/machines/default/virtualbox/private_key" -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o User=vagrant -o ConnectTimeout=10 127.0.0.1 /bin/sh -c 'LANG=en_US.UTF-8 LC_CTYPE=en_US.UTF-8 /usr/bin/python /home/vagrant/.ansible/tmp/ansible-tmp-1451338151.66-149952547135034/git; rm -rf /home/vagrant/.ansible/tmp/ansible-tmp-1451338151.66-149952547135034/ >/dev/null 2>&1'
failed: [web] => {"cmd": "/usr/bin/git ls-remote '' -h refs/heads/HEAD", "failed": true, "rc": 128}
stderr: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

msg: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

FATAL: all hosts have already failed -- aborting