Pulling git repo to a vagrant box using ansible

Hi all I am trying to pull a repo from my github to a vagrant box via ansible, refering this github issue. I have registered an ssh from my host with the github. And below is the part in the playbook where I'm trying to pull;

  - name: install git
    apt: name=git

  - name: create the ssh public key file
    copy: src=/home/user/.ssh/id_rsa.pub dest=/root/.ssh/id_rsa.pub mode=0644

  - name: create the ssh private key file
    copy: src=/home/user/.ssh/id_rsa dest=/root/.ssh/id_rsa mode=0600

  - name: setup git repo
    git: repo=git@github.com:myusername/project_foo_bar.git dest=/home/projects/myproject accept_hostkey=yes key_file="/root/.ssh/id_rsa"

After installing git I've copied my public and private keys to the box but my provisioning fails in the last step. I'm unable to pull the repo, instead get the below error;

TASK: [setup git repo] ******************************************************** 
failed: [default] => {"cmd": "/usr/bin/git ls-remote origin -h     refs/heads/master", "failed": true, "rc": 128}
stderr: fatal: 'origin' does not appear to be a git repository
fatal: Could not read from remote repository.

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

msg: fatal: 'origin' does not appear to be a git repository
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

Am I wrongly entering the address. I tried repo=ssh://git@github.com/myusername/project_foo_bar.git but that too doesn't fly

You init a repository in /home/projects/myproject directory and then try to clone a github repo to the very same directory.

Remove init task, delete /home/projects/myproject directory from the box and run your playbook again.