def attach_interface()

in cdk/nodegroup/lambda/attach-multus-eni.py [0:0]

• 34 lines of code
• 4 McCabe index (conditional complexity)

def attach_interface(network_interface_id, instance_id, index):
    attachment = None
    if network_interface_id and instance_id:
        try:
            attach_interface = ec2_client.attach_network_interface(
                NetworkInterfaceId=network_interface_id,
                InstanceId=instance_id,
                DeviceIndex=index
            )
            attachment = attach_interface['AttachmentId']
            log("Created network attachment: {}".format(attachment))
        except botocore.exceptions.ClientError as e:
            log("Error attaching network interface: {}".format(e.response['Error']))

    network_interface = ec2.NetworkInterface(network_interface_id)
    network_interface.create_tags(
        Tags=[
                {
                    'Key': 'node.k8s.amazonaws.com/no_manage',
                    'Value': 'true'
            }
        ]
    )

    #modify_attribute doesn't allow multiple parameter change at once..
    network_interface.modify_attribute(
        SourceDestCheck={
            'Value': False
        }
    )
    network_interface.modify_attribute(
        Attachment={
            'AttachmentId': attachment,
            'DeleteOnTermination': True
        },
    )

    return attachment