title: Difference between Google App Engine Flexible and Google Container Engine?
body: <p>Specific to Docker based deployment, what are the differences between those two? Since Google App Engine Flexible now also supports Dockerfile based deployment and it is also fully-managed service, seems it's more preferred option rather than configuring Kubernetes deployment on Container Engine, isn't it?</p>
  
  <p>What are the use cases where it's more preferred to use Google Container Engine over App Engine Flexible?</p>