[galaxy-dev] playbook download error

Hi, all, I tried to download the playbook for automatic installation of Galaxy tools, but encountered the following error: [galaxy@Pegasus galaxy]$ git clone --recursive git@github.com:afgane/galaxy-tools-playbook.git Initialized empty Git repository in /home/galaxy/galaxy/galaxy-tools-playbook/.git/ Permission denied (publickey). fatal: The remote end hung up unexpectedly Is this repository still open to public download? I'm new and not quite familiar with the playbook application. Any step by step guide will be helpful. Thanks, Bill