title: Private helm repository failed to download chart
body: <p>I have created a private repository in Azure following this example: <a href="https://jessicadeen.com/how-to-create-a-public-helm-repo-using-azure-storage/" rel="nofollow noreferrer">https://jessicadeen.com/how-to-create-a-public-helm-repo-using-azure-storage/</a>. Everything worked fine, I was able to push my chart, add repository to my cluster and even to deploy it. In the next day I tried to upgrade my newly pushed chart which unfortunately isn't working anymore, it complains always with the generic error: <code>Error: failed to download &quot;azikiel/calendar&quot; (hint: running &quot;helm repo update&quot; may help)</code>
  which is weird because I can see my new version of chart added to the cluster after repo update:</p>
  <pre><code>❯  helm search repo calendar
  NAME                    CHART VERSION   APP VERSION     DESCRIPTION
  azikiel/calendar        0.2.1           1.16.0          A Helm chart for Kubernetes
  </code></pre>
  <p>I remember that in the first time while deploying first version of my chart I haven't set up a SaS token or any other authentication method to pull it. Although I suspect that there was involved an environment variable which is missing in my new terminal session.</p>
  <p>Please guide me on what is wrong in my setup.</p>