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- Cloudify Manager: Cloudify, through its army of plugins, is capable of relationship topology base resource orchestration in many levels and cross different technologies. It is the lifecycle management engine of DCAE. Various resource deployment, change, allocation, configuration, etc, operations are all done through Cloudify. [Note: This component is part of the Common Controller SDK, or ccsdk project. How DCAE uses it will be described more below regarding deployment.]
- Consul: Consul is a service discovery technology for distributed fault detection and KV store. DCAE uses Consul for service and configuration registry. [Note: This component is part of the Common Controller SDK, or ccsdk project. How DCAE uses it will be described more below regarding deployment. ]
- Service infrastructure: DCAE platform supports two kinds of infrastructures, the Docker container hosts and CDAP/Hadoop clusters. The former is for running containerized applications and services. And the latter is for running CDAP-Hadoop based big data analytics.
- Dispatcher: Dispatcher is a NB API provider for the DACE DCAE Services. Service related triggers, such as deploying/undeploying services, changing configurations, etc all arrive at the Dispatcher, which then enriches the request, and invokes the right Blueprints and calling Cloudify Manager plugins to complete the necessary changes in virtual resources.
- Inventory: Inventory tracks DCAE related resource information such as various Blueprints and templates that are used by Cloudify Manager to deploy and configure components, as well as inventory information extracted from A&AI that is related to but not really part of DCAE, such as the relationships between virtual network resources and their physical infrastructures.
- PGaaS: Inventory is backed by a PostgreSQL database for data storage.
- Policy Handler and Service Changing Handler: They are the interfacing modules for specific external components such as Policy, SDC, etc.
- CDAP Broker: CDAP Broker interfaces between CDAP and Cloudify Manager, supporting carrying out various Cloudify CDAP operations onto the CDAP.
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