https://acim.net/categories/ubuntu/Recent content in Ubuntu on The Blog of Boban AcimovicHugo -- gohugo.ioen-usThe Blog of Boban Acimovic &copy; 2026Sat, 18 Mar 2023 00:00:00 +0000https://acim.net/blog/install-docker-kubectl-ubuntu-22-04/Sat, 18 Mar 2023 00:00:00 +0000https://acim.net/blog/install-docker-kubectl-ubuntu-22-04/<p>Since some time apt-key is deprecated and lot of Ubuntu 22.04 based systems throws the following warning:</p> <div class="highlight-wrapper"><div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-txt" data-lang="txt"><span style="display:flex;"><span>Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details</span></span></code></pre></div></div> <p>You can easily fix this by properly installing Docker and Kubernetes apt archives public keys:</p>