def deploy_app(self, app_id, app_dir):
        success = True

        # first create a namespace for the app
        success = self._create(os.path.join(app_dir, "namespace.json"))

        # now launch all other components in the new namespace
        for f in os.listdir(app_dir):
            if f != "namespace.json":
                path = os.path.join(app_dir, f)
                success = success and self._create(path, namespace=app_id)
                if not success:
                    error_log(self.TAG, "Could not deploy {0} on Kubernetes cluster".format(path))

        # create a route in the proxy
        success = success or self._register_proxy_route(app_id)
        if not success:
            error_log(self.TAG, "Could not deploy {} on Kubernetes cluster".format(path))
            return None

        lookup_url = self._get_lookup_url()
        app_url = urljoin("https://" + lookup_url, app_id)
        info_log(self.TAG, "Access app at: \n   {}".format(app_url))
        return app_url
dataset/ETHPy150Open binder-project/binder/binder/cluster.py/KubernetesManager.deploy_app/operator `and` -> `or`