'Commodity method to get the correct jenkins node name,
the name is composed by \'demo.geonode.org\' and the VM id'

def getDemoNode(self, nodes_data):

    demo_node = None
    for node in nodes_data['computer']:
        if (GEONODE_DEMO_DOMAIN in node['displayName']):
            demo_node = node['displayName']
    return demo_node
