text: **Public cloud**
  A cloud computing environment on which access to 
  standardized resources, such as infrastructure, 
  multi-tenant hardware, and services, is available to 
  subscribers on a pay-per-use basis. 
  
  **Registry**
  A public or private repository that contains images that are 
  used to create containers. 
  
  **Software as a Service (SaaS)**
  A model of software deployment whereby software, 
  including business processes, enterprise applications, 
  and collaboration tools, are provided as a service to 
  customers through the cloud. 