title: pulling and running docker image using Jenkins docker plugin
body: <p>I'm trying to work out how to pull and run a docker image from docker hub inside Jenkins. The docker plugin seems to be the way to go. However, despite the fact that I can find a ton of information in the public domain and stack overflow for building images and pushing them to a registry, I'm struggling to find anything for pulling images and spinning up containers. I can find lots of things which look like this:</p>
  
  <pre><code>newImage = docker.build(appNameWithBranch)
  docker.withRegistry("https://${registryAddress}", ''){
      newImage.push("${variables.version}")
  }
  </code></pre>
  
  <p>Presumably there must be a way of pulling images and spinning up containers using something similar?</p>