We have a need to support clients in Azure and use Packer to build the image used by Cloudera Director for cluster deployments.  We are considering basing our Packer image build on the CentOS image provided by Cloudera in Azure.  The release notes read:

"This OS Image is based on CentOS 7.4, with specific configuration settings to allow Cloudera software products to function properly."

Can anyone elaborate on what these "specific configuration settings" are?   Any documentation available or caveats to consider if using this image for production environments?