Two links for those interested in seeing how an automation API for Hadoop would look like:
At the first glance both of the APIs support the same range of resources/end points.
Cloudera Manager comes in two editions: free and enterprise with some of the automation features (service monitoring & management, security), being available only in the latter one. I’m not sure if all the endpoints are available through the free edition of the Cloudera Manager.
Original title and link: Hadoop Cluster Automation APIs: Ambari and Cloudera Manager ( ©myNoSQL)