title: az login fails wih Azure DevOps Pipelines
body: <p>Since Today all our build pipelines on Azure Devops fail, when trying to execute the follwoing command:</p>
  
  <pre><code>az acr helm push ...
  </code></pre>
  
  <p>The pipeline fails with following error:</p>
  
  <p><code>ERROR: Please run 'az login' to setup account.</code></p>
  
  <p>We are running on Microsoft hosted agents using <strong>Hosted Ubuntu 1604</strong>.<br>
  Checking the latest commits for the Ubuntu image shows, that there has been a version update from <strong>2.0.52</strong> to <strong>2.0.55</strong> of the azure cli tool.</p>
  
  <p><a href="https://github.com/Microsoft/azure-pipelines-image-generation/commit/56c54c965019c4f7456cd9af572a443df9d5d78c#diff-f87405c9dd43f633a04dd078666d61af" rel="nofollow noreferrer">https://github.com/Microsoft/azure-pipelines-image-generation/commit/56c54c965019c4f7456cd9af572a443df9d5d78c#diff-f87405c9dd43f633a04dd078666d61af</a></p>
  
  <p>Maybe this version update introduced the problem. Just guessing. </p>
  
  <p>Can anyone help please? </p>