deploy.py 文件源码

def _parse_root_device_hints(node):
    """Convert string with hints to dict. """
    root_device = node.properties.get('root_device')
    if not root_device:
        return {}
    try:
        parsed_hints = irlib_utils.parse_root_device_hints(root_device)
    except ValueError as e:
        raise exception.InvalidParameterValue(
            _('Failed to validate the root device hints for node %(node)s. '
              'Error: %(error)s') % {'node': node.uuid, 'error': e})
    root_device_hints = {}
    advanced = {}
    for hint, value in parsed_hints.items():
        if isinstance(value, six.string_types):
            if value.startswith('== '):
                root_device_hints[hint] = int(value[3:])
            elif value.startswith('s== '):
                root_device_hints[hint] = urlparse.unquote(value[4:])
            else:
                advanced[hint] = value
        else:
            root_device_hints[hint] = value
    if advanced:
        raise exception.InvalidParameterValue(
            _('Ansible-deploy does not support advanced root device hints '
              'based on oslo.utils operators. '
              'Present advanced hints for node %(node)s are %(hints)s.') % {
                  'node': node.uuid, 'hints': advanced})
    return root_device_hints