If you had downloaded CDH v5.13 docker image, then the issue might be mostly due to the structure of the image archive; in my case, I found it to be clouder*.tar.gz > cloudera*.tar > cloudera*.tar ! Seems the packaging was done by fault and the official documentation too doesn't capture this :( In which case, just perform one more level of extraction to get to the correct cloudera*.tar archieve. This post from the cloudera forum helped me.
Open a web browser, and log in to Cloudera Manager (quickstart.cloudera:7180) using cloudera/cloudera as credentials. Navigate to Hosts / quickstart.cloudera / Configuration. In Java Home Directory field, enter
As of now, cloudera/quickstart image is 4.4GBs and downloading may take a bit long depending on your connection bandwidth. Once done, please check by running sudo docker images You will see a cloudera/quickstart image too in the images listed.
You can use Cloudera Manager to manage all the services in your Cloudera quickstart VM. Cloudera Manager is the admin tool that provides a nice UI for managing the services. You can check the health status, start, stop, or restart any service with just a few clicks.