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Akraino Radio Edge Cloud (REC) provides an appliance tuned to support the O-RAN Alliance and O-RAN Software Community's Radio Access Network Intelligent Controller (RIC) and is the first example of the Telco Appliance blueprint family which provides a reusable set of modules that will be used to create sibling blueprints for other purpose tuned appliances.
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| Objective and Context of REC Blueprint |
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| Objective and Context of REC Blueprint |
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- RIC on Kubernetes on “bare metal” tuned for low latency round trip messaging between RIC and eNodeB/gNodeB,
- Support for telco networking requirements such as SRIOV, dual POD interfaces, IPVLAN
- Built from reusable components of the “Telco Appliance” blueprint family
- Automated Continuous Deployment pipeline testing the full software stack (bottom to top, from firmware up to and including application) simultaneously on chassis based extended environmental range servers and commodity datacenter servers
- Integrated with Regional Controller (Akraino Feature Project) for “zero touch” deployment of REC to edge sites
- Deployable to multiple hardware models
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Components Used in Creation of the ISO Image- Build-tools: Based on OpenStack Disk Image Builder
- Dracut: Tool for building ISO images for CentOS
- RPM Builder: Common code for creating RPM packages
- Specs: the build specification for each RPM package
- Dockerfiles: the build specifications for each Docker container
- Unit files: the systemd configuration for starting/stopping services
- Ansible playbooks: Configuration of all the various components
- Test automation framework
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Components Which Provide Additional REC Functionality- L3 Deployer: an OpenStack Ironic-based hardware manager framework
- Hardware Detector: Used to adapt L3 deployer to specific hardware
- Virtual installer: tooling to deploy REC on a VM (for testing only)
- North-bound REST API framework: For creating/extending REC APIs
- CLI interface
- AAA server to manage cloud infrastructure users and their roles
- Configuration management
- Container image registry
- Security hardening configuration
- Remote Installer: Docker image used by Regional Controller to launch deployer
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Most Notable Upstream Components That Are Packaged Into REC with Configuration and Tuning:- Kubernetes
- Docker
- CPU-Pooler: for enhanced CPU management in K8s
- DANM: for TelCo grade network management in K8s
- CNI: to provision specific network interfaces for containers
- SR-IOV CNI and Device Plugin: to provision SR-IOV Virtual Functions for containers
- Flannel: a CNI backend, implementing an overlay management network for containers
- Helm: K8s package manager
- etcd: a distributed key-value store
- kubedns: K8s in-built service discovery
- Fluentd: Log aggregation and forwarding service
- Elasticsearch: Log collection, store, and analysis service
- Prometheus: Performance measurement service
- OpenStack Swift: Used for container image storage
- Ceph: Distributed block storage
- NTP: Network Time Protocol
- MariaDB, Galera: Database for OpenStack components
- RabbitMQ: Message Queue for Openstack components
- Python Peewee: A Python ORM
- Redis: high-available configuration data store
- The static local provisioner is included as a beta/preview feature https://github.com/kubernetes-sigs/sig-storage-local-static-provisioner
- The dynamic local provisioner is included as a beta/preview feature https://github.com/nokia/dynamic-local-pv-provisioner
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Additional Component Details
Some of the components of particular interest are documented in the following child pages:
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| page | Radio Edge Cloud Developer Documentation |
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