title: Disable Docker Upon Startup in Ubuntu 20.04
body: <p>I thought this was pretty straightforward to make docker daemon not to start when I start my machine, but seems not to be the case. I installed docker manually and then used the following simple line post installation:</p>
  <pre><code>sudo systemctl disable docker
  </code></pre>
  <p>But to my surprise this did not do much and I could still see the daemon happily running around!</p>
  <pre><code>joesan@joesan-InfinityBook-S-14-v5:~$ docker ps
  CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
  joesan@joesan-InfinityBook-S-14-v5:~$ 
  </code></pre>
  <p>Is there anything that I'm missing? Any clues?</p>