title: GitLab: Deploy keys are not allowed to push
body: <p>I have Existing project folder that contains git  , when i need to push it i face this issue </p>
  
  <pre><code>The authenticity of host 'gitlab.com (54.93.71.23)' can't be established.
  ECDSA key fingerprint is   
  SHA256:HbW3g8zUjNSksFbqTiUWPWg2Bq1x8xdGUrliXFzSnUw.
  Are you sure you want to continue connecting (yes/no)?
  </code></pre>
  
  <p><strong>Note</strong> I was working well with git and the same project on fedora 21
           but when update to fedora 22 this issue appeared.</p>
  
  <p>Any Suggestions? </p>