Table of Contents
Blueprint overview/Introduction
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Use Case 2
Use Case 3
Business Drivers
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MECM Services:
- Front End:
- AppO:
- Rules management
- Inventory
- APM
- Postgres DB
AppStore:
- Front End
- Appstore Backend
- Postgres DB
Developer Platform:
- Tools
- Workspace
- Postgres DB 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 the core module responsible for orchestrating life cycle maintenance operation of application. Appo orchestrates application deployment by executing specified process and automated sequence of tasks, rules and policies. Appo is responsible for retrieving the application instance information, edgeehost performance statistics and edge host platform capabilities.
- Rules management
- Inventory : Responsible for registrations like MEC Host, AppLCM, AppStore, application. Retrieves all the applcm records,mec host records and applications.
- APM: Application package manager responsible for application package management including Onboarding, distributing package to edge , retrieves the application package information and download the application package csar.
- 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.
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 deatils. 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. Appstore FE provides platform to upload the application package across various industry domains and displays the list of packages.
- 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.
Developer Platform:
- 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 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:
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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:
- 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 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 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
- MEP Services:
- DNS
- Service Registry : 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).
- MEP server: MEP platform services like service registry, discovery, DNS, traffic rules etc.
- Network and Rules management
- AppLCM: LCM controller and K8s plugin
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