https://www.chenk.top/en/tags/images/Recent content in Images on Chen Kai BlogHugoenSat, 17 Jun 2023 09:00:00 +0000https://www.chenk.top/en/docker-containers/02-images-and-layers/Sat, 17 Jun 2023 09:00:00 +0000https://www.chenk.top/en/docker-containers/02-images-and-layers/<p>The first time I ran <code>docker pull ubuntu</code> I expected to download an entire operating system. Instead, it finished in seconds and was only 77 MB. That seemed impossibly small for a Linux distribution. The secret is layers — and understanding how they work changes the way you think about building and shipping containers.</p> <hr> <h2 id="image-vs-container" class="heading-anchor">Image vs Container<a href="#image-vs-container" class="heading-link" aria-label="Permalink to this section" title="Copy link to this section">#</a> </h2><p>Before diving into layers, let&rsquo;s clarify a fundamental distinction that trips up many beginners.</p>