purge.py 文件源码

def default():
    """
    Remove the .../stack/defaults directory.  Preserve available_roles
    """
    # Keep yaml human readable/editable
    friendly_dumper = yaml.SafeDumper
    friendly_dumper.ignore_aliases = lambda self, data: True

    preserve = {}
    content = None
    pathname = "/srv/pillar/ceph/stack/default/{}/cluster.yml".format('ceph')
    with open(pathname, "r") as sls_file:
        content = yaml.safe_load(sls_file)
    preserve['available_roles'] = content['available_roles']
    stack_default = "/srv/pillar/ceph/stack/default"
    shutil.rmtree(stack_default)
    os.makedirs("{}/{}".format(stack_default, 'ceph'))
    with open(pathname, "w") as sls_file:
        sls_file.write(yaml.dump(preserve, Dumper=friendly_dumper,
                       default_flow_style=False))

    uid = pwd.getpwnam("salt").pw_uid
    gid = grp.getgrnam("salt").gr_gid
    for path in [stack_default, "{}/{}".format(stack_default, 'ceph'), pathname]:
        os.chown(path, uid, gid)