valence/ui

Rack Scale Design (RSD) Web UI

The ui folder contains HTML, JavaScript and CSS code for a Web UI that can be used to explore Rack Scale Design (RSD) artifacts and compose/disassemble nodes.

##Pre-reqs

1. Install Node and NPM using the OS-specific installer on https://nodejs.org/en/download/
2. Update npm to the latest verions

   sudo npm install npm -g
   

3. Follow the instructions in the docs directory for setting up the apache ui-proxy.

##Install

1. cd to the ui directory and run:

   npm install
   

   • This will install all packages listed in package.json file.
   • If you are adding a new package dependency, make sure to save it to the package.json file. You can install the package and update package.json in a single command: npm install --save new-package@6.2.5
   • This installs the webpack dev server which can be used for serving the Web UI during development.

##Run

1. Build

   npm run build
   

2. Start webpack-dev-server in watch mode on the src dir:

   npm run devserver
   

   • The devserver command is defined in package.json. It launches the webpack-dev-server program in hot mode and watches the src directory. If you make any changes to any file in the src dir, webpack-dev-server compiles everything to a temp location and reloads the display page (index.html).

3. Open browser and goto http://localhost:8080/ to view the UI

##Develop

1. The src\index.html is the root HTML page for the Web UI. It has a div element called app which is where the dynamic UI contents get inserted. The file src/js/main.js does this insertion using:

   ReactDOM.render(<Layout/>, document.getElementById('app'));
   

   The root of the app content is provided by the React component src/js/components/Layout.js. It wraps others components Pods.js, Racks.js, etc which encapsulate the state and rendering details of Pods, Rack, etc respectively.
2. The file webpack.config.js contains loaders that transpile React components to plain JavaScript that any browser can understand. The command webpack (package.json contains dev-build and build commands which can be used instead via npm run <command>) kicks off this transpilation process.
3. Modify appropriate files and use the devserver detailed above to test your changes.