Welcome to ddf-ui, the home of Intrigue.
Inside of a ddf karaf console run the following commands:
feature:repo-add mvn:org.codice.ddf.search/intrigue-ui-app/3.0.0-SNAPSHOT/xml/features
feature:install catalog-ui-app
This will the add the backend repo and then install the app.
feature:repo-add mvn:org.codice.ddf.search/ui-frontend/3.0.0-SNAPSHOT/xml/features
feature:install ui-frontend
This will add the frontend repo and then install the app.
Change 3.0.0-SNAPSHOT to whatever the desired or most recent version of ddf-ui.