def _create_namespace(namespace, apiserver_url):
    ''' create namespace on the defined k8s cluster '''
    # Prepare URL
    url = "{0}/api/v1/namespaces".format(apiserver_url)
    # Prepare data
    data = {
        "kind": "Namespace",
        "apiVersion": "v1",
        "metadata": {
            "name": namespace,
        }
    }
    log.trace("namespace creation requests: %s", data)
    # Make request
    ret = _kpost(url, data)
    log.trace("result is: %s", ret)
    # Check requests status
    return ret
create namespace on the defined k8s cluster