--- fixes: - Containers might fail to retrieve packages from the repo server when connecting to a slave repo server that has not finished synchronizing. For more information, see https://bugs.launchpad.net/openstack-ansible/+bug/1543146. This is addressed by adding pre and post hooks into lsyncd to connect to the slave repo servers and disable NGINX for the duration for the sync. security: - A sudoers entry is added to the repo_servers to allow the nginx user to stop and start NGINX from the init script. This ensures that the repo sync process can shut off NGINX while synchronizing data from master to slaves.