title: Linux headers for ubuntu docker image 18.04
body: <p>I am trying to install linux header for my ubuntu 18.04 docker image (ubuntu:18.04). Usually I will do <code>sudo apt-get install linux-headers-$(uname -r)</code> in my VM to get the current linux header packages.</p>
  <p>But the docker image return the following when I run uname -r</p>
  <pre><code>root@0c4e24cca819:/# uname -r
  4.19.76-linuxkit
  </code></pre>
  <p>Just wonder which linux header image I should use for ubuntu:18.04 docker image?</p>