Source code for ironic.common.trait_based_networking.defaults

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#         http://www.apache.org/licenses/LICENSE-2.0
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from ironic.common.trait_based_networking import base
from ironic.common.trait_based_networking import loader

DEFAULT_TRAIT_NAME = "CUSTOM_DEFAULT_TBN_TRAIT"

DEFAULT_TRAIT = base.NetworkTrait(
    DEFAULT_TRAIT_NAME,
    # Define a single action which should match any available port or
    # portgroup just once.
    [base.TraitAction(DEFAULT_TRAIT_NAME,
                      base.Actions.ATTACH_PORT,
                      base.FilterExpression.parse(
                          "port.is_port || port.is_portgroup"),
                      max_count=1)]
)



[docs]
def default_network_trait():
    """Gets the default TBN trait

    :returns: A single trait representing the default trait to apply if no
        other traits apply to a node. Will get the default defined in the
        configuration file if present. Otherwise returns a predefined default
        which matches the first available port or portgroup.
    """
    # Return the default trait defined in the configuration file, if present.
    traits_dict = {trait.name: trait
                   for trait in loader.tbn_config_file_traits()}
    if DEFAULT_TRAIT_NAME in traits_dict:
        return traits_dict[DEFAULT_TRAIT_NAME]

    # Otherwise use the pre-defined default trait.
    return DEFAULT_TRAIT