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Merge pull request #14 from opennaslab/rl-dev
doc: add spec of bifrost
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| # Bifrost Specification | ||
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| ## Summary | ||
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| When using a server to build various services for external exposure (such as setting up a private book service, requiring local deployment of services, DNS configuration, proxy routing, etc.), the configuration is more complex and it becomes difficult to manage when there are multiple services. Bifrost is dedicated to solving the one-click setup of service processes during the service building process and the management difficulties after building multiple services. | ||
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| ## Design | ||
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| To impelment a general framework for expose service deployment and management, bifrost abstracts two types of resources, workflow and action. Workflow encompasses the overall deployment and management steps of a service, while action defines the behavior of one small step within it. | ||
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| Let's give an example: I have a host in my home, and I want to deploy a private file service and expose it to the public network with the DNS `file.test.xxx`. | ||
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| So the workflow should be as follows: | ||
| ```yaml | ||
| name: exposeLocalFileService | ||
| description: Expose local file service to the public network | ||
| configurationSteps: | ||
| - use: action-deploy-file-server@v1 | ||
| name: deployFileServerInLocal | ||
| in: | ||
| ip: 192.168.1.3 | ||
| fileShareDir: /root/share | ||
| serverPort: 8080 | ||
|
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| - use: action-routing-config@v1 | ||
| name: configRoutingInVPS | ||
| in: | ||
| localPort: 8080 | ||
| sshPassword: bifrost | ||
| sshIP :8.8.8.8 | ||
| hostRoute :file.test.xxx | ||
|
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| - use :action-dns-config@v1 | ||
| name:dnsConfig | ||
| in : | ||
| dnsProvider :googleCloud | ||
| domainName :file.test.xxx | ||
| backendIP :8.8.8.8 | ||
| ``` | ||
| In this workflow file, there are three actions that can be used in other workflows and combined in any order or methods. With this workflow, users can easily deploy a file server, configure routing on a virtual private server, and configure DNS on a cloud DNS provider. | ||
| ## Architecture | ||
| The overall architecture of Bifrost is as follows: | ||
|  | ||
| 1. The `bifrost dashboard` will communicate with the backend through a RESTful API to handle workflow management. | ||
| 1. `bifrost apiserver` will offer a standard API that, when invoked, stores the workflow in the database using the `database connector`. |