title: Can't build docker image: "requested access to the resource is denied"
body: <p>I can't push my docker image to my docker hub repository.</p>
  <p>I am logged in. The repo exists and is public. I tried multipled ways of building/tagging/pushing my image.</p>
  <pre><code>docker login -u username -p password
  docker build ./ -t my-image -f devops/Dockerfile
  docker tag image username/my-image
  docker push username/my-image
  </code></pre>
  <p>I crawled tens of questions on multiple websites. The answers were always either how to login correctly or how to tag and push the image. It seems to me like I am doing both correctly, so what's wrong?</p>