Where necessary add requirements that apply to containerized VNFs.

Proposed Requirements:

R-xxxx Container Images and Build File

Containerized components of VNFs SHOULD follow the recommendations for Container Base Images and Build File Configuration in the latest available version of the CIS Docker Community Edition Benchmarks to ensure that containerized VNFs are secure. All non-compliances with the benchmarks MUST be documented.

R-xxxx Container Run Time

Containerized components of VNFs SHOULD execute in a Docker run-time environment that follows the Container Runtime Configuration in the latest available version of the CIS Docker Community Edition Benchmarks to ensure that containerized VNFs are secure. All non-compliances with the benchmarks MUST be documented.