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@@ -21,7 +21,13 @@ The YARN UI is an Ember based web-app that provides visualization of the applica
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## Configurations
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-* You can point the UI to custom locations by setting the environment variables in `src/main/webapp/config/configs.env`
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+You can point the UI to custom locations by setting the environment variables in `src/main/webapp/config/configs.env`.
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+
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+In order to make the UI running on Ember server (started by `yarn start`)
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+work with independently running ResouceManager,
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+you need to enable CORS by setting `hadoop.http.cross-origin.enabled` to true
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+and adding `org.apache.hadoop.security.HttpCrossOriginFilterInitializer`
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+to `hadoop.http.filter.initializers` in core-site.xml of the ResourceManager.
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## Development
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@@ -32,7 +38,7 @@ All the following commands must be run inside `src/main/webapp`.
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You will need the following things properly installed on your computer.
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* Install [Yarn](https://yarnpkg.com) v0.21.3
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-* Install [Bower](http://bower.io/) v1.7.7
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+* Install [Bower](http://bower.io/) v1.8.8
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* Install all dependencies by running `yarn install` & `bower install`
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### Running UI
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@@ -62,3 +68,22 @@ YARN UI has replaced NPM with Yarn package manager. And hence Yarn would be used
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### Adding new routes (pages), controllers, components etc.
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* Use ember-cli blueprint generator - [Ember CLI](http://ember-cli.com/extending/#generators-and-blueprints)
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+
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+### Building with Maven
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+
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+[YARN-6278](https://issues.apache.org/jira/browse/YARN-6278)
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+added `yarn-ui` profile to pom.xml leveraging
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+[frontend-maven-plugin](https://github.com/eirslett/frontend-maven-plugin) which
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+automatically installs Node.js and Yarn locally under target/webapp directory.
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+After building yarn-ui by `mvn package -Pyarn-ui`, you can reuse
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+the locally installed Node.js and Yarn instead of manually installing them.
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+
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+```
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+$ mvn package -Pyarn-ui
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+$ export PATH=$PWD/target/webapp/node:$PATH
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+$ export YARNJS=$PWD/target/webapp/node/yarn/dist/bin/yarn.js
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+$ cd src/main/webapp/
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+$ node $YARNJS install
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+$ node node_modules/.bin/bower install
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+$ node $YARNJS start
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+```
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Masatake Iwasaki