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• aPaaS:
  • Defect Detection Service: This is a service to detect the defect when PCB images provided
  • Object Detection Service: This service can be used by developer app for various Object detection for example Bottle detection and count for Retail store inventory.
• PaaS:
  • Secret Management: Platform services and developer apps can use this service for sensitive info storing like password, cert etc.
  • Cert Management: Platform services and developer apps can use this service for automate certifications management.
  • Storage: Edge native storage for enterprise sites.
  • Backup / Restore: scheduled backup, disaster recovery for remote sites
  • DB: common DB for applications data 
  • Monitoring: system and apps health monitoring. 
  • CNI: k8s based networking for multi interface support in a POD for SFC scenarios, network policies etc.
• MEP Services:
  • DNS: DNS server and DNS record management service
  • Service Registry: Service registry and discovery, availability notifications
  • AppLCM: applications life cycle management
  • Network Isolation:  Provides separation of control, management and data planeplan
• API Gateway: Provides secure End points for MEP services as well as producer Applications.

Software Platform Architecture

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Unified CLI: Command Line Interface provides the user interface to install the EALTEdge environment.

CENTER Node -

MECM Services: 

• Front End: The MECM-FE management plane mainly provides the registration of edge nodes, APPLCM, and application distribution and deployment functions from the user interface perspective, which is divided into three functional areas. Map area provides switch between nodes in different regions. The KPI, MEP capabilities and application capabilities are displayed in detail according to the currently selected node.
• AppO:  Application orchestrator is orchestra tor is the core module responsible for orchestrating life cycle maintenance operation of application. Appo AppO orchestrates application deployment by executing specified process and automated sequence of tasks, rules and policies. Appo AppO is responsible for retrieving the application instance information, edgeehost edge host performance statistics and edge host platform capabilities.
• Inventory : Responsible for registrations like MEC Host, AppLCM, AppStore, application. Retrieves all the applcm APPLCM records, mec MEC host records and applications.
• APM: Application package manager responsible for application package management including OnboardingOn boarding, distributing package to edge , retrieves the application package information and download the application package csarCSAR.
• Postgres DB: Open source PostgreSQL database is being used to store the information for mecm modules ie applcm details,app instance information,application data and package information.Recommended version is 12.3.modules specific information.

AppStore:

• Front End: AppStore is a market for developers to publish and launch App applications. Appstore FE provides the registration interface to the new user and once login the store home is visible, where user can upload the application package across various industry domains and displays the list of application along with the deatilsdetails. User has option to comment on the application in comment section and give ratings. Deleting option is also available in "My App/My APP" section.
• Appstore Backend: AppStore is a market for developers to publish and launch App applications. After uploading an App package, it must pass the test first. Only the apps that pass the test can be officially launched.
• Postgres DB: The AppStore database uses an open source PostgreSQL database, and the recommended version is 12.2. Which Stores app information, application package information and review details of the application.

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• Tools: Developer tools are used in Plugin Management, Plugin Life Cycle and grading systems making it more convenient for developers to develop applications and integrate them into the edgegallery EdgeGallery platform.
• Workspace: Developers manage their own Application development process by creating projects or migrating projects. Developers can manage project, app package and test task management.
• Postgres DB: PostgreSQL database version 12.x is being used.

EDGE Node Components:

MEP:MEP Provides API Gateway to achieve the below functionalities

• aPaaS:
  • Defect Detection Service: This is a service to detect the defect when PCB images provided
  • Object Detection Service: This service can be used by developer app for various Object detection for example Bottle detection and count for Retail store inventory.
• PaaS:
  • Vault: Vault is a tool for securely accessing secrets. A secret is anything that you want to tightly control access to, such as API keys, passwords, certificates, and more. Vault provides a unified interface to any secret while providing tight access control and recording a detailed audit log.
  • Cert Management: cert-manager is a native Kubernetes certificate management controller. It can help with issuing certificates from a variety of sources, such as Let’s Encrypt, HashiCorp Vault, Venafi, a simple signing key pair, or self signed. It will ensure certificates are valid and up to date, and attempt to renew certificates at a configured time before expiry.
  • OpenEBS: OpenEBS is a Kubernetes native hyperconverged storage hyper converged storage solution. OpenEBS consumes the storage (disks, SSDs, cloud volumes, etc) available on the Kubernetes worker nodes to dynamically provision Kubernetes Persistent Volumes.

    OpenEBS can provision different type of Local PV for Stateful Workloads like Cassandra, MongoDB, Elastic, etc that are distributed in nature and have high availiability built availability built into them. Depending on the type of storage attached to your Kubernetes worker nodes, you can select from Dynamic Local PV - Hostpath, Device, ZFS or Rawfile.

  • Velero: Velero is an open source tool to safely backup and restore, perform disaster recovery, and migrate Kubernetes cluster resources and persistent volumes.
  • Influx DB: Time series data base for user applications data.
  • Prometheus Agent: cAdvisor, NodeExporter
  • Multus: Support secondary interfaces for PODs in case of SFC scenarios and CNFs
• MEP Services:
  • DNS:  The MEP platform provides the domain name resolution services to the applications deployed in the EdgeGallery MEC, which can be utilized by utilised by the device applications in UE. MEC platform receives the DNS configurations from the MEC management, which includes the FQDN (Fully Qualified Domain Name), IP address and related entries. MEC applications can later query or modify the state of these configurations.
  • MEP server: MEP platform services like service registry, discovery, DNS, traffic rules etc.  MEP provides service registration, update, delete, and query related API interfaces. Applications can register, update, delete, and query services through LDVS- MEP.  The service registry provides visibility of the services available on the MEC server. It uses the concept of loose coupling of services, providing flexibility in application deployment. In addition, the service registry presents service availability (status of the service) together with the related interfaces and versions. It is used by applications to discover and locate the end-points for the services they require, and to publish their own service end-point for other applications to use. The access to the service registry is controlled (authenticated and authorised).
  • Network isolation: Provides separation of control, managment and management and data plane
• AppLCM: LCM controller and K8s plugin.  Handles the application life cylcecycle, where lcmController is mainly communicates with K8s plugin to upload config, remove config, instantiate, terminate,and query an application. It also provides APIs to query mep capabilities and kpi information from prometheus.
• KONG: Provides API gateway functionality along with authentication and authorisation.

Below are details of Upstream and Opensource software's used in various nodes of EALTEdge Environment.

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