title: How to support all languages (fonts) on Ubuntu minimal
body: <p>By default, the docker <code>ubuntu</code> image or other minimal ubuntu are support English only. But there are some features like text to image or PDF generation that depends system fonts that corresponding to the content.</p>
  
  <p>For now, the <code>fc-list</code> is:</p>
  
  <pre><code>/usr/share/fonts/truetype/dejavu/DejaVuSerif-Bold.ttf: DejaVu Serif:style=Bold
  /usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf: DejaVu Sans Mono:style=Book
  /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf: DejaVu Sans:style=Book
  /usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf: DejaVu Sans:style=Bold
  /usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf: DejaVu Sans Mono:style=Bold
  /usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf: DejaVu Serif:style=Book
  </code></pre>
  
  <p>It caused some Non-ASCII character display as a square. There is a case: <a href="https://confluence.atlassian.com/confkb/non-ascii-characters-display-as-square-characters-in-confluence-317948797.html" rel="nofollow noreferrer">https://confluence.atlassian.com/confkb/non-ascii-characters-display-as-square-characters-in-confluence-317948797.html</a></p>
  
  <p>So, I want a best practice to support all languages on Ubuntu.</p>