Openshift with Geoserver and PostGIS DB configured...now what? -

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i've set geoserver , postgis db on openshift. can confirm have data in db because can connect qgis , add layers....now trying create simple map 1 layer can not find tutorials on this... below code works local instance of data create simple map...what url use layers created on openshift? can't seem find them.

<!doctype html public "-//w3c//dtd xhtml 1.0 strict//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>ogr2layers</title> <style>  #map{width:400px;height:400px;} </style> <script src="http://www.openlayers.org/api/2.13/openlayers.js"></script> <script type="text/javascript"> var map, selectscontrols function init(){     var option = {         projection: new openlayers.projection("epsg:900913"),         displayprojection: new openlayers.projection("epsg:4326")     };     map = new openlayers.map('map', option);     var attribution = {attribution:"&copy; <a href='http://www.openstreetmap.org/copyright'>openstreetmap</a> contributors"};     olmapnik = new openlayers.layer.osm("openstreetmap mapnik", "http://tile.openstreetmap.org/${z}/${x}/${y}.png", attribution);     map.addlayer(olmapnik);     map.setbaselayer(olmapnik);     var ls= new openlayers.control.layerswitcher();      map.addcontrol(ls);      ls.maximizecontrol();      map.addcontrol(new openlayers.control.mouseposition());     map.addcontrol(new openlayers.control.navigation());     var block = new openlayers.layer.vector("block geojson", {         protocol: new openlayers.protocol.http({             url: "block.geojson",             format: new openlayers.format.geojson()         }),         strategies: [             new openlayers.strategy.fixed()         ]     });     map.addlayer(block);     extent = new openlayers.bounds(-97.640446,21.693337,-80.768595,32.375889).transform(new openlayers.projection("epsg:4326"), new openlayers.projection("epsg:900913"));     map.zoomtoextent(extent); }; </script> </head> <body onload="init()"> <h1>this test</h1> <div id="map"></div> </body> </html>

based on example, think need http://demo.boundlessgeo.com/geoserver changed domain gave openshift instance:

// format used parse wfs getfeature responses var geojsonformat = new ol.format.geojson();  var vectorsource = new ol.source.vector({   loader: function(extent, resolution, projection) {     var url = 'http://demo.boundlessgeo.com/geoserver/wfs?service=wfs&' +         'version=1.1.0&request=getfeature&typename=osm:water_areas&' +         'outputformat=text/javascript&format_options=callback:loadfeatures' +         '&srsname=epsg:3857&bbox=' + extent.join(',') + ',epsg:3857';     // use jsonp: false prevent jquery adding "callback"     // parameter url     $.ajax({url: url, datatype: 'jsonp', jsonp: false});   },   strategy: ol.loadingstrategy.tile(ol.tilegrid.createxyz({     maxzoom: 19   })) });

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